Using conventional and unconventional oil and gas resource evaluation methods with play as a unit, this study evaluates the oil and gas geology and resource potential of conventional oil and gas resources and seven ty...Using conventional and unconventional oil and gas resource evaluation methods with play as a unit, this study evaluates the oil and gas geology and resource potential of conventional oil and gas resources and seven types of unconventional resources in the global major oil and gas basins(excluding China). For the first time, resource evaluation data with independent intellectual property rights has been obtained. According to evaluation and calculation, the global recoverable conventional oil resources are 5 350.0×108 t, the recoverable condensate oil resources are 496.2×108 t, and the recoverable natural gas resources are 588.4×1012 m3. The remaining oil and gas 2 P recoverable reserves are 4 212.6×108 t, the reserve growth of oil and gas fields are 1 531.7×108 t. The undiscovered oil and gas recoverable resources are 3 065.5×108 t. The global unconventional oil recoverable resources are 4 209.4×108 t and the unconventional natural gas recoverable resources are 195.4×1012 m3. The evaluation results show that the global conventional and unconventional oil and gas resources are still abundant.展开更多
This paper discussed how to protect and control the quality of wild Chinese herbal medicine resources in nature reserves by taking Longyuwan National Forest Park within Funiu Mountain Nature Reserve as an example. Thr...This paper discussed how to protect and control the quality of wild Chinese herbal medicine resources in nature reserves by taking Longyuwan National Forest Park within Funiu Mountain Nature Reserve as an example. Through the combination of three methods including literature review, visiting and investigational studies, and field surveys, the data of investigation, collection and collation were analyzed. According to data of surveys, collection and collation, problems related to the protection of wild Chinese herbal medicine resources faced by Longyuwan Scenic Spot within Funiu Mountain Nature Reserve were also analyzed and protection strategies and quality control of wild Chinese herbal medicine resources in this nature reserve were discussed. It was expected that the results would provide important scientific references for the sustainable development, protection and quality control of wild Chinese herbal medicine resources within nature reserves.展开更多
Fanjing Mountain Nature Reserve is located at the junction of Jiangkou,Yinjiang and Songtao counties in the Tongren region of Guizhou Province.Because of the topography and humid climate of the central subtropical mon...Fanjing Mountain Nature Reserve is located at the junction of Jiangkou,Yinjiang and Songtao counties in the Tongren region of Guizhou Province.Because of the topography and humid climate of the central subtropical monsoonal mountains,the plant species in this area are rich and diverse.The vascular plant resources and diversity of Fanjing Mountain Nature Reserve in Guizhou Province were studied through field survey,literature review and specimen identification.The results show that there are 284 species of vascular plants in the region,belonging to 205 genera in 93 families,mainly angiosperms.Liliaceae,Asteraceae,Polygonaceae,Leguminosae,Ranunculaceae and Polygonum have the most species,followed by Sedum,Dioscorea,Actinidia Lindl and Thalictrum.In terms of life types,perennial herbs are the most dominant,accounting for 68.47%of the total number of species,and annual(or biennial)herbs,shrubs and vine types also present.There are 222 species identified as medicinal vascular plants,accounting for 78.2%of the total number of species.The medicinal parts are primarily found in the whole herb category,followed by the root and rhizome category.展开更多
On March 27, 2013, the Ministry of Land and Resources held a news conference to announce a significant achievement in Chinese geological prospecting work in 2012. According to government/industry statistics, proved r...On March 27, 2013, the Ministry of Land and Resources held a news conference to announce a significant achievement in Chinese geological prospecting work in 2012. According to government/industry statistics, proved reserves of oil and natural gas have increase substantially in 2012. Newly proven national petroleum geological reserves are 15.2 million tons, a year-on-year growth of 13%, which is the tenth time of more than 1 billion tons since the founding of People's Republic of China; newly proven technically recoverable reserves are 270 million tons, a year-on-year growth of 7%. The 2012 national newly proved reserves from natural gas exploration are 961.22 billion cubic meters, a year-on-year growth of 33%, which is the highest level in our history; the new proven technically recoverable reserves are 500.8 billion cubic meters, a year-on-year growth of 36%. National natural gas production was 106.76 billion cubic meters, a year-on-year growth of 5.4%. The Ordos, Tarim and Sichuan basins are still the main producing areas of natural gas in China. In 2012, national oil production was 205 million tons, a year-on-year growth of 1%, which made a steady increase. The national coal-bed methane production was 2.57 billion cubic meters, a year-on-year growth of 24%.展开更多
A households′production behavior directly influences the quality of the environment and determines the successful development of nature reserves.Meanwhile,the households′production behaviors are complicated by inter...A households′production behavior directly influences the quality of the environment and determines the successful development of nature reserves.Meanwhile,the households′production behaviors are complicated by interrelated factors,such as protection attitudes,resource endowment,and family wealth.This research evaluated households near the Crested Ibis National Nature Reserve in Shaanxi Province,acquiring data from 436 households around Yang County and Ningshan County in the south slope of Qinling Mountains,China.Based on the collected data,we developed a structural equation model to evaluate the coupling relationships among households′ protection attitudes,production behaviors,resource endowment,and family wealth.The results showed that:1) households with great resource endowment had more negative attitudes,probably due to their greater protection costs;2) the households with higher education levels had worse protection attitudes;3) the households with more family wealth were likely to use fewer fertilizers,pesticides,and firewood;4) the households with more resource endowment showed less production and management behaviors;5) the enhancement of households' attitudes improved production behaviors to protection the environment,but the effects were not statistically significant.Our results provide a basis for the government's protection policy making,exploring the effective management measures that are beneficial for both nature reserve management and community development.展开更多
[Objective] The aim was to study the current situation and protection countermeasures of wild plant resources in Xishuangbanna National Nature Reserve. [Method] The current situation of wild plant resources in Xishuan...[Objective] The aim was to study the current situation and protection countermeasures of wild plant resources in Xishuangbanna National Nature Reserve. [Method] The current situation of wild plant resources in Xishuangbanna National Nature Reserve was researched by means of route survey, sample plot survey and literature survey, and then the main impact factors of wild plant resources were analyzed by using participatory rural appraisal and problem tree analysis, finally protection countermeasures were put forward according to current situation and main impact factors. [Result] There were 2 779 species of vascular plants belonging to 214 families and 1 012 genera (including subfamilies and varieties) in Xishuangbanna National Nature Reserve, among them, there existed 261 species of pteridophyte belonging to 41 families and 91 genera, 14 species of gymnosperm belonging to 6 families and 6 genera, and 2 504 species of angiosperm belonging to 167 families and 915 genera. Wild plant resources in reserve were mainly affected by planting under forest, habitat fragmentation, cutting trees, collection and utilization of no-timber products, development of animal husbandry, insufficient recognition of community residents to reserve management establishment and lots of floating population. In the future, wild plant resources in reserve could be protected through strengthening propaganda, education and management, enforcing the law strictly and other countermeasures. [Conclusion] The study could provide theoretical foundation for the protection of wild plant resources in Xishuangbanna National Nature Reserve.展开更多
Using " limiting factor" evaluation method,we make survey and evaluation of reserve arable land resources in Makit County.The results show that 9876.1 ha of land resources can be reclaimed in the county;ther...Using " limiting factor" evaluation method,we make survey and evaluation of reserve arable land resources in Makit County.The results show that 9876.1 ha of land resources can be reclaimed in the county;there is no mining land to be reclaimed;9447.58 ha of grassland can be reclaimed,and it is mainly distributed in Gazikule Township and Kizilawat Township.We make the following recommendations:broadening investment channels and increasing capital investment for arable land consolidation;combining unused land development and environmental protection;making suitability evaluation of reserve arable land resources and determining reasonable direction and path of development and reclamation.展开更多
Taking land available for cultivation and mining land available for reclamation in Hangjin Banner of Inner Mongolia Autonomous Region,using land use database of 2012 as evaluation base,it made evaluation of arability ...Taking land available for cultivation and mining land available for reclamation in Hangjin Banner of Inner Mongolia Autonomous Region,using land use database of 2012 as evaluation base,it made evaluation of arability of 677 021. 40 hm2 reserve land resources by the restrictive factor evaluation method. Besides,it analyzed main restrictive factors of arable land reserve resources in Hangjin Banner. Results indicate that the total area arable land reserve resources is 52 200. 02 hm2,accounting for 7. 71% of total area evaluated. Irrigation condition and soil thickness are major factors restricting development of arable land reserve resources in the study area. It is expected to provide reference for development of arable land reserve resources and land consolidation project in Hangjin Banner.展开更多
Dependency on forest resources poses a threat to the environment in Patharghata, Bangladesh. Therefore, this study explores the role of forest resource in the life and livelihood of coastal people as well as to unders...Dependency on forest resources poses a threat to the environment in Patharghata, Bangladesh. Therefore, this study explores the role of forest resource in the life and livelihood of coastal people as well as to understand the effectiveness of forest and status of forest dependency in and around south-central coast in Patharghata, Bangladesh. We collected data randomly from 105 household heads through both open and close-ended questionnaire. To investigate the forest dependency and people’s perception regarding alternative solutions, Microsoft excel software program has been applied. The findings reveal that usage of fuelwood in cooking, housing structure, fish catching, honey & fodder collection significantly contributes to household dependency on forest resources, while other variables seem to be insignificant. Our study amplifies that the share of forest income to the total household income was only 19% while other earning sources provide</span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">d</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> 81% income. The result shows that respondent people collect forest resources primarily for cooking purpose with a share of 71% where 9% forest resources are collected as fodder followed by 8% forest resource collection as food and sheltering purposes. Moreover, the study found that using alternative cooking system, artificial instruments, declaring the forest as tourist spot, changes in housing structure, occupation are some effective options to reduce forest dependency. The study concludes that these alternative options need more financial and other support from the government, non-government and other civil society organizations to cut down forest resource dependency.展开更多
General principles and description of Mineral Resources the United Nations Framework Classification of Mineral Resources. Classification of the State Subsoil Fund of Ukraine are adapted to The system that is used to c...General principles and description of Mineral Resources the United Nations Framework Classification of Mineral Resources. Classification of the State Subsoil Fund of Ukraine are adapted to The system that is used to classify the resources and reserves of all minerals and fuels in Ukraine has been developed and described. The classification system is part of an official procedure determined by the Ukrainian State Commission on Reserves. Following preparation of resource estimates the results that are registered with the State, which maintains an official inventory of all mineral resources.展开更多
1.The Status of Major Mineral Reserves in ChinaSince 1949 162 kinds of minerals and thousands of mining area have been found out in geo-logical exploration,and 149 kinds have been proved reserves.Estimated potential c...1.The Status of Major Mineral Reserves in ChinaSince 1949 162 kinds of minerals and thousands of mining area have been found out in geo-logical exploration,and 149 kinds have been proved reserves.Estimated potential cost of 45 kindsonly of major minerals may be more than one billion RMB(?).China is the one of the great-nations of mineral resources in the world.But the distribution in respect of mineral species is not so ideal as expected.According to theirreserves the minerals can be classified as follows.展开更多
Dawangling Nature Reserve in Guangxi is famous for its rich ecotourism resources such as diversified animal and plant resources,picturesque natural scenery and pleasant climate.A.Through the field investigation and th...Dawangling Nature Reserve in Guangxi is famous for its rich ecotourism resources such as diversified animal and plant resources,picturesque natural scenery and pleasant climate.A.Through the field investigation and the application of landscape resources management system,the authors adopted 7 landscape quality factors to evaluate aesthetic quality of Dawangling Nature Reserve that could be experienced,specifically,terrain,plant,water,color,influence of neighboring landscapes,scarcity and human modification.The evaluation score was obtained as 20.0(A-grade),which implied that natural scenery in the study area was of high aesthetic value,and suitable for various experiential tourist activities.B.Ecological assessment standards for nature reserves were applied to evaluate eco-quality of the tourist environment in the study area,6 specific assessment indexes were adopted,specifically,diversity,scarcity,representativeness,naturalness,appropriateness of area and threats of survival.The evaluation score was obtained as 86.1(Grade Ⅰ),which implied that tourist environment of the study area was excellent and suitable for ecotourism development.C.According to the detailed landscape grading standards,the total score of its landscapes was obtained as 86(up to the standards of international 4A-class tourist site or spot),which implied that landscape quality of the scenic area was fine,and had great development potentials.D.By consulting the evaluation model tree of mountainous scenic areas in China,a comprehensive quantitative evaluation of the study area was carried out from the perspectives of tourist resource conditions,location and tourist source conditions,regional economic background.The score of its tourist resources was obtained as 60.67,accounting for 85.6% of the total;that of location and tourist source conditions was 11.83,accounting for 79.8% of the total;that of regional economic background was 10.55,accounting for 72.5% of the total,which implied that tourist resources in the study area were of high development value,enjoyed obvious location advantages,great value of regional economic background,thus had excellent development advantages.This study aimed at providing useful references for the further development of ecotourism resources in Dawangling Nature Reserve,which would facilitate the overall improvement of tourism industry in Baise,enhance its economic development and exploration of more ecotourism projects.展开更多
Applying new approaches, methods, and technologies for the estimation of reserves can effectively improve the efficiency and accuracy of assessments of solid mineral resources. After analyzing the development of 3-D g...Applying new approaches, methods, and technologies for the estimation of reserves can effectively improve the efficiency and accuracy of assessments of solid mineral resources. After analyzing the development of 3-D geoscience modeling technology (3-D GMT), this paper discusses the application of 3-D GMT for the estimation of solid mineral reserves, emphatically introducing its workflow and two key technologies, 3-D orebody surface modeling, and property modeling. Moreover, the paper analyzes the limitations of traditional methods, such as the section method and geological block method, and points out the advantages of 3-D GMT: building more accurate 3-D orebody models, expressing the internal inhomogeneous attributes of an orebody, reducing the potential for errors in the estimation of reserves, and implementing dynamic estimations of reserves.展开更多
Based on reserve abundance,large gas fields in China can be divided into two types:type one of high abundance large gas fields,dominated by structural gas reservoirs; type two of low abundance large gas fields,domina...Based on reserve abundance,large gas fields in China can be divided into two types:type one of high abundance large gas fields,dominated by structural gas reservoirs; type two of low abundance large gas fields,dominated by stratigraphic and lithologic gas reservoirs.The formation of these two types of large gas fields is related to the highly efficient accumulation of natural gas.The accumulation of high abundance gas fields is dependent on the rapid maturation of the source kitchen and huge residual pressure difference between the gas source kitchen and reservoir,which is the strong driving force for natural gas migration to traps.Whereas the accumulation of low abundance gas fields is more complicated,involving both volume flow charge during the burial stage and diffusion flow charge during the uplift stage,which results in large area accumulation and preservation of natural gas in low porosity and low permeability reservoirs.This conclusion should assist gas exploration in different geological settings.展开更多
Based on plant investigation of Guangxi Lagou Nature Reserve, the result indicated that the vascular plants are abundant, represented by 1,078 species(including varieties, subspecies), belonging to 657 genera in 186 f...Based on plant investigation of Guangxi Lagou Nature Reserve, the result indicated that the vascular plants are abundant, represented by 1,078 species(including varieties, subspecies), belonging to 657 genera in 186 families. Among these plants found, there are about 88 timber plants, 358 medicinal plants, 36 oil plants, 70 fi ber plants, 29 starch plants, 25 fruit plants, 28 aromatic plants, 39 tannic plants, 12 health beverage plants, 49 forage plants, 75 ornamental plants, 23 soil-conserving plants, 43 rare and endangered plants. It's urgent to protect the plant resources, so suggestions about conservation and sustainable utilization of the resources were put forward.展开更多
Panxi Area is abundant in plant resources, among which toxic plants are of great value in terms of exploitation. This paper is an initiative study (via field as well as literature investigation) of the categories, d...Panxi Area is abundant in plant resources, among which toxic plants are of great value in terms of exploitation. This paper is an initiative study (via field as well as literature investigation) of the categories, distributions, and reserves of toxic plant resources in Panxi Area. The study reveals that there are 51 families (210 species) of toxic plants evenly distributed in Panxi Area, of which more than 40 species grow in all counties in the area, and more than 14 species total a reserve more than 1.0×10^5 kg. These toxic plants are of great applications to medicine, gardening, biopesticide industry, environmental engineering, and oil manufacturing. Rhododendron molle, Anisodus acutangulus, Arisaema erubesocens, Stellera chamaejasme, Rhytolacca acinosa, Rheum officinale, and Azadiralta indica etc are the typical toxic plants with great value of exploitation in Panxi Area.展开更多
Emergency resources are an important basis of effective emergency response. But there are many disadvantages of the Chinese traditional material reserve method in which the resources are separately reserved in differe...Emergency resources are an important basis of effective emergency response. But there are many disadvantages of the Chinese traditional material reserve method in which the resources are separately reserved in different regions and sections according to the kinds of disasters. So there comes the Multi-formal and Information-based Emergency Resource Reserve System (MIERRS) in China. The reserve body and method change from the single into the multiple forms, that is, the main reserve body changes from the single government agency into the organizations combining with the military, enterprise and society, and the reserve method changes from single material reserve into the reserve combining with market reserve, talents and technology reserve, and production capacity reserve. The content of the reserve change from material to information means to develop the Emergency Resource Management Information System realizing real-time control of resource characteristics and relevant reserve information. The MIERRS leads to a reserve system with rapid response and flexible schedule. It provides a convenient platform for resource sharing, thus avoiding duplication and waste, improving the utilization of resources, reducing the reserve loss and optimizing the structure of resource reserve.展开更多
A detailed assessment on water resources of HNNR is to find the changing rules in time and space scale of water resources of HNNR and its adjacent areas, and the generating and degrading factors of wetland and provide...A detailed assessment on water resources of HNNR is to find the changing rules in time and space scale of water resources of HNNR and its adjacent areas, and the generating and degrading factors of wetland and provide scientific base on restoring and managing the hydrologic regime for planning and designing at HNNR. Both the assessment area and its adjacent watershed of Bielahong River belong to the same region in the climate and surface features. Total of 46 years of serial data from 1956 2001 in the Bielahong Hydrology Station was employed. Typical analysis of the serial runoff was conducted by adopting the residual mass curve method. The calculation methods of hydrological parameters are valuable for analyzing the water balance of HNNR. The results showed that the inputs of 118.29×10 6 m 3 of the surface runoff and 1 478km 2 of the areas of natural watershed in HNNR were decreased. At the same time some measurements to control and prevent water resources decreased have been proposed.展开更多
Call admission control (CAC) and resource reservation (RR) for mobile communication are two important factors that guarantee system efficiency and quality of service (QoS) required for different services in a very sca...Call admission control (CAC) and resource reservation (RR) for mobile communication are two important factors that guarantee system efficiency and quality of service (QoS) required for different services in a very scarce resource as the radio spectrum. A new scheme was proposed which extends the concepts of resource sharing and reservations for wideband code division multiple access (WCDMA) systems with a unique feature of soft capacity. Voice and data traffic were considered. The traffic is further classified into handoff and new requests. The reservation thresholds were dynamically adjusted according to the traffic pattern and mobility prediction in order to achieve the maximum channel utilization, while guaranteeing different QoS constraints. The performance of proposed scheme was evaluated using Markov models. New call blocking probability, handoff call dropping probability, and channel utilization were used as benchmarks for the proposed scheme.展开更多
基金Supported by the China National Science and Technology Major Project(2016ZX05029-001,2016ZX05029-002,2011ZX05028)
文摘Using conventional and unconventional oil and gas resource evaluation methods with play as a unit, this study evaluates the oil and gas geology and resource potential of conventional oil and gas resources and seven types of unconventional resources in the global major oil and gas basins(excluding China). For the first time, resource evaluation data with independent intellectual property rights has been obtained. According to evaluation and calculation, the global recoverable conventional oil resources are 5 350.0×108 t, the recoverable condensate oil resources are 496.2×108 t, and the recoverable natural gas resources are 588.4×1012 m3. The remaining oil and gas 2 P recoverable reserves are 4 212.6×108 t, the reserve growth of oil and gas fields are 1 531.7×108 t. The undiscovered oil and gas recoverable resources are 3 065.5×108 t. The global unconventional oil recoverable resources are 4 209.4×108 t and the unconventional natural gas recoverable resources are 195.4×1012 m3. The evaluation results show that the global conventional and unconventional oil and gas resources are still abundant.
基金Supported by Funding from the State Nationalities Affairs Commission(2015-GM-178)National Training Programs of Innovation and Entrepreneurship for Undergraduates(GCYS2016110001)
文摘This paper discussed how to protect and control the quality of wild Chinese herbal medicine resources in nature reserves by taking Longyuwan National Forest Park within Funiu Mountain Nature Reserve as an example. Through the combination of three methods including literature review, visiting and investigational studies, and field surveys, the data of investigation, collection and collation were analyzed. According to data of surveys, collection and collation, problems related to the protection of wild Chinese herbal medicine resources faced by Longyuwan Scenic Spot within Funiu Mountain Nature Reserve were also analyzed and protection strategies and quality control of wild Chinese herbal medicine resources in this nature reserve were discussed. It was expected that the results would provide important scientific references for the sustainable development, protection and quality control of wild Chinese herbal medicine resources within nature reserves.
基金We would like to show our great appreciation to Shenyang Zhuoyuehefa Pharmaceutical Co.and Grand Life Science(Liaoning)Co.,LTD.for their financial support on this scientific expedition and Shenyang Pharmaceutical University for their great support and help to the 10^(th)Scientific Research Team on Chinese Medicine Resources.
文摘Fanjing Mountain Nature Reserve is located at the junction of Jiangkou,Yinjiang and Songtao counties in the Tongren region of Guizhou Province.Because of the topography and humid climate of the central subtropical monsoonal mountains,the plant species in this area are rich and diverse.The vascular plant resources and diversity of Fanjing Mountain Nature Reserve in Guizhou Province were studied through field survey,literature review and specimen identification.The results show that there are 284 species of vascular plants in the region,belonging to 205 genera in 93 families,mainly angiosperms.Liliaceae,Asteraceae,Polygonaceae,Leguminosae,Ranunculaceae and Polygonum have the most species,followed by Sedum,Dioscorea,Actinidia Lindl and Thalictrum.In terms of life types,perennial herbs are the most dominant,accounting for 68.47%of the total number of species,and annual(or biennial)herbs,shrubs and vine types also present.There are 222 species identified as medicinal vascular plants,accounting for 78.2%of the total number of species.The medicinal parts are primarily found in the whole herb category,followed by the root and rhizome category.
文摘On March 27, 2013, the Ministry of Land and Resources held a news conference to announce a significant achievement in Chinese geological prospecting work in 2012. According to government/industry statistics, proved reserves of oil and natural gas have increase substantially in 2012. Newly proven national petroleum geological reserves are 15.2 million tons, a year-on-year growth of 13%, which is the tenth time of more than 1 billion tons since the founding of People's Republic of China; newly proven technically recoverable reserves are 270 million tons, a year-on-year growth of 7%. The 2012 national newly proved reserves from natural gas exploration are 961.22 billion cubic meters, a year-on-year growth of 33%, which is the highest level in our history; the new proven technically recoverable reserves are 500.8 billion cubic meters, a year-on-year growth of 36%. National natural gas production was 106.76 billion cubic meters, a year-on-year growth of 5.4%. The Ordos, Tarim and Sichuan basins are still the main producing areas of natural gas in China. In 2012, national oil production was 205 million tons, a year-on-year growth of 1%, which made a steady increase. The national coal-bed methane production was 2.57 billion cubic meters, a year-on-year growth of 24%.
基金Under the auspices of Forestry Industry Research Special Funds for Public Welfare Projects(No.201004008)National Natural Science Foundation of China(No.71003007)Research Program of Food and Agriculture Organization(No.CHN/2011/077/LOA)
文摘A households′production behavior directly influences the quality of the environment and determines the successful development of nature reserves.Meanwhile,the households′production behaviors are complicated by interrelated factors,such as protection attitudes,resource endowment,and family wealth.This research evaluated households near the Crested Ibis National Nature Reserve in Shaanxi Province,acquiring data from 436 households around Yang County and Ningshan County in the south slope of Qinling Mountains,China.Based on the collected data,we developed a structural equation model to evaluate the coupling relationships among households′ protection attitudes,production behaviors,resource endowment,and family wealth.The results showed that:1) households with great resource endowment had more negative attitudes,probably due to their greater protection costs;2) the households with higher education levels had worse protection attitudes;3) the households with more family wealth were likely to use fewer fertilizers,pesticides,and firewood;4) the households with more resource endowment showed less production and management behaviors;5) the enhancement of households' attitudes improved production behaviors to protection the environment,but the effects were not statistically significant.Our results provide a basis for the government's protection policy making,exploring the effective management measures that are beneficial for both nature reserve management and community development.
文摘[Objective] The aim was to study the current situation and protection countermeasures of wild plant resources in Xishuangbanna National Nature Reserve. [Method] The current situation of wild plant resources in Xishuangbanna National Nature Reserve was researched by means of route survey, sample plot survey and literature survey, and then the main impact factors of wild plant resources were analyzed by using participatory rural appraisal and problem tree analysis, finally protection countermeasures were put forward according to current situation and main impact factors. [Result] There were 2 779 species of vascular plants belonging to 214 families and 1 012 genera (including subfamilies and varieties) in Xishuangbanna National Nature Reserve, among them, there existed 261 species of pteridophyte belonging to 41 families and 91 genera, 14 species of gymnosperm belonging to 6 families and 6 genera, and 2 504 species of angiosperm belonging to 167 families and 915 genera. Wild plant resources in reserve were mainly affected by planting under forest, habitat fragmentation, cutting trees, collection and utilization of no-timber products, development of animal husbandry, insufficient recognition of community residents to reserve management establishment and lots of floating population. In the future, wild plant resources in reserve could be protected through strengthening propaganda, education and management, enforcing the law strictly and other countermeasures. [Conclusion] The study could provide theoretical foundation for the protection of wild plant resources in Xishuangbanna National Nature Reserve.
基金Supported by Anhui Provincial Soft Science Research Program(2015801)
文摘Using " limiting factor" evaluation method,we make survey and evaluation of reserve arable land resources in Makit County.The results show that 9876.1 ha of land resources can be reclaimed in the county;there is no mining land to be reclaimed;9447.58 ha of grassland can be reclaimed,and it is mainly distributed in Gazikule Township and Kizilawat Township.We make the following recommendations:broadening investment channels and increasing capital investment for arable land consolidation;combining unused land development and environmental protection;making suitability evaluation of reserve arable land resources and determining reasonable direction and path of development and reclamation.
基金Supported by Grassland Non-living Disaster Prevention and Mitigation Team of Chinese Academy of Agricultural Sciences(CAAS-ASTIP-IGR2015-04)Natural Science Doctoral Foundation Project of Inner Mongolia Autonomous Region(2014BS0329)Special Project of Fundamental Research Funds for Central Public Welfare Research Institutes(1610332015022)
文摘Taking land available for cultivation and mining land available for reclamation in Hangjin Banner of Inner Mongolia Autonomous Region,using land use database of 2012 as evaluation base,it made evaluation of arability of 677 021. 40 hm2 reserve land resources by the restrictive factor evaluation method. Besides,it analyzed main restrictive factors of arable land reserve resources in Hangjin Banner. Results indicate that the total area arable land reserve resources is 52 200. 02 hm2,accounting for 7. 71% of total area evaluated. Irrigation condition and soil thickness are major factors restricting development of arable land reserve resources in the study area. It is expected to provide reference for development of arable land reserve resources and land consolidation project in Hangjin Banner.
文摘Dependency on forest resources poses a threat to the environment in Patharghata, Bangladesh. Therefore, this study explores the role of forest resource in the life and livelihood of coastal people as well as to understand the effectiveness of forest and status of forest dependency in and around south-central coast in Patharghata, Bangladesh. We collected data randomly from 105 household heads through both open and close-ended questionnaire. To investigate the forest dependency and people’s perception regarding alternative solutions, Microsoft excel software program has been applied. The findings reveal that usage of fuelwood in cooking, housing structure, fish catching, honey & fodder collection significantly contributes to household dependency on forest resources, while other variables seem to be insignificant. Our study amplifies that the share of forest income to the total household income was only 19% while other earning sources provide</span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">d</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> 81% income. The result shows that respondent people collect forest resources primarily for cooking purpose with a share of 71% where 9% forest resources are collected as fodder followed by 8% forest resource collection as food and sheltering purposes. Moreover, the study found that using alternative cooking system, artificial instruments, declaring the forest as tourist spot, changes in housing structure, occupation are some effective options to reduce forest dependency. The study concludes that these alternative options need more financial and other support from the government, non-government and other civil society organizations to cut down forest resource dependency.
文摘General principles and description of Mineral Resources the United Nations Framework Classification of Mineral Resources. Classification of the State Subsoil Fund of Ukraine are adapted to The system that is used to classify the resources and reserves of all minerals and fuels in Ukraine has been developed and described. The classification system is part of an official procedure determined by the Ukrainian State Commission on Reserves. Following preparation of resource estimates the results that are registered with the State, which maintains an official inventory of all mineral resources.
文摘1.The Status of Major Mineral Reserves in ChinaSince 1949 162 kinds of minerals and thousands of mining area have been found out in geo-logical exploration,and 149 kinds have been proved reserves.Estimated potential cost of 45 kindsonly of major minerals may be more than one billion RMB(?).China is the one of the great-nations of mineral resources in the world.But the distribution in respect of mineral species is not so ideal as expected.According to theirreserves the minerals can be classified as follows.
基金Supported by Scientific Research Program of Baise University(2010KB17)~~
文摘Dawangling Nature Reserve in Guangxi is famous for its rich ecotourism resources such as diversified animal and plant resources,picturesque natural scenery and pleasant climate.A.Through the field investigation and the application of landscape resources management system,the authors adopted 7 landscape quality factors to evaluate aesthetic quality of Dawangling Nature Reserve that could be experienced,specifically,terrain,plant,water,color,influence of neighboring landscapes,scarcity and human modification.The evaluation score was obtained as 20.0(A-grade),which implied that natural scenery in the study area was of high aesthetic value,and suitable for various experiential tourist activities.B.Ecological assessment standards for nature reserves were applied to evaluate eco-quality of the tourist environment in the study area,6 specific assessment indexes were adopted,specifically,diversity,scarcity,representativeness,naturalness,appropriateness of area and threats of survival.The evaluation score was obtained as 86.1(Grade Ⅰ),which implied that tourist environment of the study area was excellent and suitable for ecotourism development.C.According to the detailed landscape grading standards,the total score of its landscapes was obtained as 86(up to the standards of international 4A-class tourist site or spot),which implied that landscape quality of the scenic area was fine,and had great development potentials.D.By consulting the evaluation model tree of mountainous scenic areas in China,a comprehensive quantitative evaluation of the study area was carried out from the perspectives of tourist resource conditions,location and tourist source conditions,regional economic background.The score of its tourist resources was obtained as 60.67,accounting for 85.6% of the total;that of location and tourist source conditions was 11.83,accounting for 79.8% of the total;that of regional economic background was 10.55,accounting for 72.5% of the total,which implied that tourist resources in the study area were of high development value,enjoyed obvious location advantages,great value of regional economic background,thus had excellent development advantages.This study aimed at providing useful references for the further development of ecotourism resources in Dawangling Nature Reserve,which would facilitate the overall improvement of tourism industry in Baise,enhance its economic development and exploration of more ecotourism projects.
文摘Applying new approaches, methods, and technologies for the estimation of reserves can effectively improve the efficiency and accuracy of assessments of solid mineral resources. After analyzing the development of 3-D geoscience modeling technology (3-D GMT), this paper discusses the application of 3-D GMT for the estimation of solid mineral reserves, emphatically introducing its workflow and two key technologies, 3-D orebody surface modeling, and property modeling. Moreover, the paper analyzes the limitations of traditional methods, such as the section method and geological block method, and points out the advantages of 3-D GMT: building more accurate 3-D orebody models, expressing the internal inhomogeneous attributes of an orebody, reducing the potential for errors in the estimation of reserves, and implementing dynamic estimations of reserves.
基金sponsored by the National Key Basic Research Program of China(2007CB2095)
文摘Based on reserve abundance,large gas fields in China can be divided into two types:type one of high abundance large gas fields,dominated by structural gas reservoirs; type two of low abundance large gas fields,dominated by stratigraphic and lithologic gas reservoirs.The formation of these two types of large gas fields is related to the highly efficient accumulation of natural gas.The accumulation of high abundance gas fields is dependent on the rapid maturation of the source kitchen and huge residual pressure difference between the gas source kitchen and reservoir,which is the strong driving force for natural gas migration to traps.Whereas the accumulation of low abundance gas fields is more complicated,involving both volume flow charge during the burial stage and diffusion flow charge during the uplift stage,which results in large area accumulation and preservation of natural gas in low porosity and low permeability reservoirs.This conclusion should assist gas exploration in different geological settings.
基金Sponsored by Project of State Forestry Administration(20130211)
文摘Based on plant investigation of Guangxi Lagou Nature Reserve, the result indicated that the vascular plants are abundant, represented by 1,078 species(including varieties, subspecies), belonging to 657 genera in 186 families. Among these plants found, there are about 88 timber plants, 358 medicinal plants, 36 oil plants, 70 fi ber plants, 29 starch plants, 25 fruit plants, 28 aromatic plants, 39 tannic plants, 12 health beverage plants, 49 forage plants, 75 ornamental plants, 23 soil-conserving plants, 43 rare and endangered plants. It's urgent to protect the plant resources, so suggestions about conservation and sustainable utilization of the resources were put forward.
基金the National Key Technologies Research and Development Program in the Tenth Five-Year Plan of China(2101BA 901A40)the "Western Light" Talents Training Program of Chinese Academy of Science (C20509037)
文摘Panxi Area is abundant in plant resources, among which toxic plants are of great value in terms of exploitation. This paper is an initiative study (via field as well as literature investigation) of the categories, distributions, and reserves of toxic plant resources in Panxi Area. The study reveals that there are 51 families (210 species) of toxic plants evenly distributed in Panxi Area, of which more than 40 species grow in all counties in the area, and more than 14 species total a reserve more than 1.0×10^5 kg. These toxic plants are of great applications to medicine, gardening, biopesticide industry, environmental engineering, and oil manufacturing. Rhododendron molle, Anisodus acutangulus, Arisaema erubesocens, Stellera chamaejasme, Rhytolacca acinosa, Rheum officinale, and Azadiralta indica etc are the typical toxic plants with great value of exploitation in Panxi Area.
基金China National Natural Science Foundation Funded Project (Grant No. 70771073)
文摘Emergency resources are an important basis of effective emergency response. But there are many disadvantages of the Chinese traditional material reserve method in which the resources are separately reserved in different regions and sections according to the kinds of disasters. So there comes the Multi-formal and Information-based Emergency Resource Reserve System (MIERRS) in China. The reserve body and method change from the single into the multiple forms, that is, the main reserve body changes from the single government agency into the organizations combining with the military, enterprise and society, and the reserve method changes from single material reserve into the reserve combining with market reserve, talents and technology reserve, and production capacity reserve. The content of the reserve change from material to information means to develop the Emergency Resource Management Information System realizing real-time control of resource characteristics and relevant reserve information. The MIERRS leads to a reserve system with rapid response and flexible schedule. It provides a convenient platform for resource sharing, thus avoiding duplication and waste, improving the utilization of resources, reducing the reserve loss and optimizing the structure of resource reserve.
文摘A detailed assessment on water resources of HNNR is to find the changing rules in time and space scale of water resources of HNNR and its adjacent areas, and the generating and degrading factors of wetland and provide scientific base on restoring and managing the hydrologic regime for planning and designing at HNNR. Both the assessment area and its adjacent watershed of Bielahong River belong to the same region in the climate and surface features. Total of 46 years of serial data from 1956 2001 in the Bielahong Hydrology Station was employed. Typical analysis of the serial runoff was conducted by adopting the residual mass curve method. The calculation methods of hydrological parameters are valuable for analyzing the water balance of HNNR. The results showed that the inputs of 118.29×10 6 m 3 of the surface runoff and 1 478km 2 of the areas of natural watershed in HNNR were decreased. At the same time some measurements to control and prevent water resources decreased have been proposed.
文摘Call admission control (CAC) and resource reservation (RR) for mobile communication are two important factors that guarantee system efficiency and quality of service (QoS) required for different services in a very scarce resource as the radio spectrum. A new scheme was proposed which extends the concepts of resource sharing and reservations for wideband code division multiple access (WCDMA) systems with a unique feature of soft capacity. Voice and data traffic were considered. The traffic is further classified into handoff and new requests. The reservation thresholds were dynamically adjusted according to the traffic pattern and mobility prediction in order to achieve the maximum channel utilization, while guaranteeing different QoS constraints. The performance of proposed scheme was evaluated using Markov models. New call blocking probability, handoff call dropping probability, and channel utilization were used as benchmarks for the proposed scheme.