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Can We Manage Coastal Area? Will We?——The Institutional Change of the Coastal Area Management of Taiwan
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作者 Yuh-fen Kao 《Management Studies》 2024年第1期21-32,共12页
The Coastal Zone Management Act was finally promulgated in 2015,while Ministry of the Interior was asked to draft a coastal management act in 1991 by Executive Yuan.It was until the government’s lifting of martial la... The Coastal Zone Management Act was finally promulgated in 2015,while Ministry of the Interior was asked to draft a coastal management act in 1991 by Executive Yuan.It was until the government’s lifting of martial law in 1987,vigorous activities started prevailing on coastal areas.And relevant legal documents were on sea reclamation for development in the 1980’s by Council of Agriculture.The approval of“Taiwan Coastal Area Natural Environment Protection Plan”showed an era of environmental protection in 1980s.However,it was surely not market driven,similar to land development,but some efforts by the administration systems.Through all the years,the efforts were put on drafting plans and these efforts were not quite sounding.The coastal disasters and further climate change caught the attention of relevant NGOs,scholars,politicians,and the society.At the critical juncture the government was made to react to outside demands.And then the Coastal Zone Management Act was passed by Legislative Yuan,establishing an integrated coastal management system in Taiwan.As such,it is proposed to look into this long process of the attempt with the concept of institutional change in order to understand this coastal environmental preservation and protection issue in a broader scope. 展开更多
关键词 Integrated Coastal Zone management(ICZM) institutional change new institutionalism coastal area
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Cultural Marketing Management in Tourism Scenic Area Development -- A Case Study of Longevity Industry in Bama 被引量:2
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作者 岑长庆 《商情》 2010年第11期134-134,65,共2页
关键词 摘要 编辑部 编辑工作 读者
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Reductions in non-point source pollution through different management practices for an agricultural watershed in the Three Gorges Reservoir Area 被引量:13
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作者 Yaowu Tian Zhilin Huang Wenfa Xiao 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2010年第2期184-191,共8页
Non-point source water pollution generated by agricultural production is considered a major environmental issue in the Three Gorges Reservoir Area (TGRA) of China. The Annualised Agricultural Non-Point Source Pollut... Non-point source water pollution generated by agricultural production is considered a major environmental issue in the Three Gorges Reservoir Area (TGRA) of China. The Annualised Agricultural Non-Point Source Pollution (AnnAGNPS) model was selected to assess the impact of the application of various management treats, including seven crops, five fertilizer levels and three-group management practice scenarios, on water quality from Heigou River Watershed in TGRA. The scenario subsets include conservation tillage practice (CTP), conservation reserve program (CRP) and conversion of cropland into forestland program (CCFP). Results indicated that tea can not be replaced by other crops because comparatively tea resulted in a higher sediment yield. CTP with no-tillage was more effective to reduce sediment yield, but could increased nutrient loss. CRP reduced sediment yield significantly, but slightly benefited on nutrient loss. CCFP reduced not only sediment yield but also the nutrient loss significantly. The conversion of cropland with a slope greater than 10° into forestland was found to be the best scenario as the sediment yield export is less than 5 tons/ha and nutrient loss is within the permissible limit. 展开更多
关键词 non-point pollution management practice REDUCTION the Three Gorges Reservoir area
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Effects of Nitrogen Management on the Yield of Winter Wheat in Cold Area of Northeastern China 被引量:10
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作者 LI Lian-peng LIU Yuan-ying +1 位作者 LUO Sheng-guo PENG Xian-long 《Journal of Integrative Agriculture》 SCIE CSCD 2012年第6期1020-1025,共6页
A plot experiment including four treatments, CK (N 105 kg ha-1 as urea, including a basal N application of 35 kg ha-I and a topdressing N 70 kg ha-1 at turned green stage) and optimized N management (OPT1, OPT2 and... A plot experiment including four treatments, CK (N 105 kg ha-1 as urea, including a basal N application of 35 kg ha-I and a topdressing N 70 kg ha-1 at turned green stage) and optimized N management (OPT1, OPT2 and OPT3, applied two-thirds, one-third and two-fifths N at jointing stage, respectively, total N 60 kg ha-l), was conducted to evaluate the effects of nitrogen management on growth and N uptake of winter wheat (Triticum aestivum), Dongnong 1, which is the first highly cold tolerant winter wheat in China. Index of population quality, N uptake and yield were determined. The ear-bearing tiller rate was increased by above 12%, and the leaf area index, biomass and N uptake were significantly decreased (P〈O.05) at jointing stage. OPT treatments increased the grain to leaf area ratio at heading stage, the dry matter weight and N uptake after heading by 14.3-27.9%, 11.6-28.7% and 118.1-161.8 %, respectively. The yield of the OPT treatments was increased by 14.2-37.5% compared with CK, and there was a significant difference (P〈0.05) between CK and OPT1 treatments. Harvest index and N partial factor productivity (PFP, kg grain yield per kg N applied) was clearly enhanced from 0.4 and 35.6 kg, respectively for CK to an average of 0.48 (P〈0.05) and 77.6 kg (P〈0.05) in the OPT treatments. These results indicated that the optimized N management increased the harvest index, yield and N use efficiency by decreasing the N application rate and postponing N application time, improved wheat population quality, controlled excessive growth in the vegetative stages and increased dry matter and N accumulation rates after heading. 展开更多
关键词 cold area winter wheat (Triticum aestivum) N management population quality YIELD
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Effects of Site-Specific Nitrogen Management on Yield and Dry Matter Accumulation of Rice from Cold Areas of Northeastern China 被引量:7
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作者 PENG Xian-long LIU Yuan-ying +3 位作者 LUO Sheng-guo FAN Li-chun SONG Tian-xing GUO Yan-wen 《Agricultural Sciences in China》 CAS CSCD 2007年第6期715-723,共9页
The effects of yield increase and mechanism of site-specific nitrogen management (SSNM) in five rice varieties from cold areas of northeastern China were studied. Plot experiment for critical SPAD value and experime... The effects of yield increase and mechanism of site-specific nitrogen management (SSNM) in five rice varieties from cold areas of northeastern China were studied. Plot experiment for critical SPAD value and experiments of two fertilization methods, SSNM and farmer's fertilization practice (FFP) were conducted to study their effects on the quality and dry matter accumulation of rice population, as well as N uptake. Compared with FFP, SSNM significantly decreased the average N rate by 33.8%, significantly increased average ear-bearing tiller rate and LAI for grain-filling stage by 12.3% and 14.1-27.6%, correspondingly, improved dry matter weight and N uptake after heading period by 4.3-29.1% and 11.8-55.1% (P 〈 0.05), and heightened recovery efficiency and agronomic efficiency by 38.5-133.4% (P 〈 0.05) and 39.8-194.3% (P 〈 0.05), respectively, as well as increased the average yield by 9.8% in 2004 and 2005. The results indicated that the accumulation rate of dry matter and N increased the rice yield and N use efficiency, because of improving rice population quality and increasing LAI after heading period. 展开更多
关键词 cold areas RICE site-specific nitrogen management YIELD dry matter N use efficiency
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Effects of Land Management Practices on Soil Water in Southwestern Mountainous Area, China 被引量:3
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作者 SHAO Jing-an WEI Chao-fu XIE De-ti 《Agricultural Sciences in China》 CAS CSCD 2008年第7期871-886,共16页
The effects of selected land management practices (cross-sloping tillage, ridge culture, organic manure, and straw mulch) on soil water conservation in a southwestern mountainous area, China, were studied during Nov... The effects of selected land management practices (cross-sloping tillage, ridge culture, organic manure, and straw mulch) on soil water conservation in a southwestern mountainous area, China, were studied during November 2002 to November 2004. The experimental field is divided into three parts based on soil layer depths, 0-60 cm (part Ⅰ), 0-40 cm (part Ⅱ), and 0- 20 cm (part Ⅲ), and they all had the same slope azimuth (SE), slope (10°), and slope type (linear). The experimental plots were subjected to the following treatments: cross-sloping tillage (CST); cross-sloping tillage with organic manure (CST/ OM); cross-sloping tillage with straw mulch (CST/SM); contour ridge culture (CRC); contour ridge culture with organic manure (CRC/OM); and contour ridge culture with straw mulch (CRC/SM), to identify the effects of management practices on soil water. Water contents were determined for soil samples collected, using a 2.2 cm diameter manual probe. Soil water was monitored once every five days from Nov. 20, 2002 to Nov. 20, 2004. The results indicated that, in the study stages, an integration of rainfall, evaporative losses, and crop transcription controlled the basic tendencies of profile (mean) soil water, while land management practices, to a certain extent, only modified its amount, distribution, and routing. Moreover, these modifications also mainly focused on the first 20 cm depth of topsoil layer. When each management practice was compared with control treatment, season changes of profile (mean) soil water were pronounced, while interannual changes among them were not significant. More comparisons indicated that, in the study stages, contour ridge culture had better effects than cross-sloping tillage. And under the same tillage, the combination of organic manure could achieve more than straw mulch. These management practices should be recommended considering the effectiveness of soil and water management techniques in the southwestern mountainous area, China. 展开更多
关键词 land management practices soil water precision water management southwestern mountainous area China
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Conflict between wild boars(Sus scrofa) and farmers:distribution, impacts,and suggestions for management of wild boars in the Three Gorges Reservoir Area 被引量:2
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作者 LIU Qin YAN Kun +2 位作者 LU Ya-feng LI Ming YAN Yang-yang 《Journal of Mountain Science》 SCIE CSCD 2019年第10期2404-2416,共13页
Economic losses caused by wild boars(Sus scrofa)continue to increase in the Three Gorges Reservoir Area.We selected 206 farmers in Wuqiaohe Basin as survey respondents using random stratified sampling.The distribution... Economic losses caused by wild boars(Sus scrofa)continue to increase in the Three Gorges Reservoir Area.We selected 206 farmers in Wuqiaohe Basin as survey respondents using random stratified sampling.The distribution and impacts of wild boars were examined using a questionnaire survey and spatial analysis.The results showed that:(1)The density of farmer settlements is low and most peasants’households are located on the forest edge.Due to large-scale labor migration,a high proportion of farmland(25.85%)has been abandoned and an even higher proportion of farmland(40.48%)has been returned to forest.(2)The probability of wild boar damage to peasant households was 67.96%.Yields of corn and sweet potato decreased by 24.87%and 28.24%,respectively,with a total economic loss of approximately 2,590,100 RMB/yr in the Wuqiaohe basin.Sixty-five percent of the affected cultivatedlands were located within approximately 150 m of the forest edges.(3)The wild boar damage coefficient was significantly and negatively correlated with the distance between the peasants’household and the forest edge,the density of the settlements,and the area of cultivated land.The wild boar damage coefficient shows a significant positive correlation with the area of farmland returned to forest.(4)The damage activity caused by wild boars began to occur7-8 years ago,and the destruction has been more frequently and seriously observed in the last 4-5 years.(5)We make suggestions for wild boar control and management measures including developing a compensation policy.The compensation standard is related to the land area returning from farmland to forests and the actual cultivated land area. 展开更多
关键词 DISTRIBUTION features Economic loss management Three Gorges Reservoir area Wild BOAR
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Stakeholder orientated sustainable land management:The Ruhr Area as a role model for urban areas 被引量:2
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作者 Jürgen Kretschmann 《International Journal of Mining Science and Technology》 SCIE EI 2013年第5期659-663,共5页
The concept of sustainable land management(SLM)can help create a balance between the different demands of economy,society and nature.SLM means to actively develop land based on a knowledgebased procedure.It should aim... The concept of sustainable land management(SLM)can help create a balance between the different demands of economy,society and nature.SLM means to actively develop land based on a knowledgebased procedure.It should aim on long term enhancements.The basis of SLM is the interests and the goals of the stakeholders.It is the result of a bargaining process between different institutions by creating win-win-situations or adequate conflict solutions to reach a consensus.The Ruhr Area is Germany’s biggest metropolitan area.Land management regarding economic,social and environmental issues,which has a long tradition in this area,goes back to 1920.Being the centre of the heavy industry in Germany for more than 150 years,the Ruhr Area today is a green metropolis.The ecological,social and economical change of this industrial region can serve as a role model for SLM in urban areas all over the world. 展开更多
关键词 Land management SUSTAINABILITY Mining heritage Ruhr area
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Solid Waste Management Challenges in Urban Areas of Ghana: A Case Study of Bawku Municipality 被引量:2
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作者 Nang Biyogue Douti Samuel Kojo Abanyie Steve Ampofo 《International Journal of Geosciences》 2017年第4期494-513,共20页
This study was conducted in the Bawku Municipality of the Upper East, Ghana, with the view to assessing the factors that impede the management of solid waste. Questionnaires were submitted to 150 randomly selected hou... This study was conducted in the Bawku Municipality of the Upper East, Ghana, with the view to assessing the factors that impede the management of solid waste. Questionnaires were submitted to 150 randomly selected households, while face-to-face semi-structured interviews were conducted with the municipal Waste Management Department and a private waste management company, Zoomlion Ghana Ltd. Data collected included components of solid waste generated, waste collection, transportation and final disposal methods, the challenges confronting waste management institutions, and respondents' knowledge and perceptions of the waste management system and their attitudes towards it. Components of wastes generated were organic waste, paper waste and plastics. Factors that adversely affected waste collection and transportation systems were the inadequate supply of waste collection containers, the existence of a weak waste transportation system and a low patronage of the door-to-door collection method. The study showed that the municipal landfill did not meet the required standard. The results also revealed the lack of public awareness on issues regarding waste and lack of a participatory approach that makes the people an active stakeholder in the waste management system. This situation accounted for indiscriminate disposals of waste by most respondents who viewed the issue of waste management as the exclusive responsibility of the local government. The study further showed that the waste management institutions were faced with financial difficulties, understaffing and poor logistics and nature of roads, and social constraints. The study therefore suggests the development of a strategic plan for efficient waste management which revolves around these findings. 展开更多
关键词 SOLID WASTE management URBAN areas DEVELOPING COUNTRIES Ghana
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Review of China's policy and management system for the paid use of sea area Feng 被引量:1
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作者 Feng Li Zenglei Xi Xiangbo Liang 《Chinese Journal of Population,Resources and Environment》 2019年第1期58-66,共9页
As a carrier to develop various marine resources, sea area is regulated as a kind of important resources through legislation by many coastal countries with a management system for the paid use of sea area. Since the e... As a carrier to develop various marine resources, sea area is regulated as a kind of important resources through legislation by many coastal countries with a management system for the paid use of sea area. Since the early 1990s, China has begun to implement the paid use and formed an institutional system comprised of three levels after developing it for more than two decades. From 2002 to 2015, the Chinese Government transferred the use right of sea area of 33,910 km2 by paid use and levied a total of 75.89 billion CNY (11.328 billion US dollars) of sea area use payment. Apart from this, the Government has gained rich experience in operating and managing the compensable use of sea area. After retrospectively analyzing the development history of paid use of China’s sea area, the research presents an institutional structure and the implementation of the management system for the paid use of sea area and the main problems therein. On this basis, management policies and feasible policy suggestions are proposed. Research results from this study can provide available references for other developing countries and emerging economies to apply and improve native management system for the paid use of sea area. 展开更多
关键词 PAID USE SEA area POLICY management system China
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Modelling Irrigation and Salinity Management Strategies in the Ord Irrigation Area 被引量:1
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作者 Riasat Ali John Byrne Tara Slaven 《Natural Resources》 2010年第1期34-56,共23页
The Ord River Irrigation Area (ORIA) is located within northern Western Australia near the Northern Territory border. Since the beginning of irrigated agriculture in the ORIA the groundwater levels have been continuou... The Ord River Irrigation Area (ORIA) is located within northern Western Australia near the Northern Territory border. Since the beginning of irrigated agriculture in the ORIA the groundwater levels have been continuously rising and are now close to the soil surface in some parts of ORIA in northern Western Australia. The groundwater is now saline throughout most of the ORIA and soil salinity risks are high where the watertables are shallow. This research evaluated irrigation and salinity management strategies for sugarcane and maize crops grown over deep and shallow, non-saline and saline watertables in the ORIA. The LEACHC model, calibrated using field data, was used to predict the impacts of various irrigation management strategies on water use and salt accumulation in the root zone. This study concluded that irrigation application equal to 100% of total fortnightly pan evaporation applied at 14 day intervals was a good irrigation strategy for the maize grown over a deep watertable area. This strategy would require around 11 ML/ha of irrigation water per growing season. Irrigation application equal to 75% of total fortnightly pan evaporation, applied every fortnight during first half of the growing season, and 75% of total weekly pan evaporation, applied on a weekly basis during second half of the growing season, would be the best irrigation strategy if it is feasible to change the irrigation interval from 14 to seven days. This irrigation strategy is predicted to have minimal salinity risks and save around 40% irrigation water. The best irrigation strategy for sugarcane grown on Cununurra clay over a deep watertable area would be irrigation application equal to 50% of the total fortnightly pan evaporation, applied every fortnight during first quarter of the growing season, and irrigation application amounts equal to 100% of total weekly pan evaporation, applied every week during rest of the season. The model predicted no soil salinity risks from this irrigation strategy. The best irrigation strategy for sugarcane over a non-saline, shallow watertable of one or two m depth would be irrigation application amounts equal to 50% of total fortnightly pan evaporation applied every fortnight. In the case of a saline watertable the same irrigation strategy was predicted to the best with respect to water use efficiency but will have high salinity risks without any drainage management. 展开更多
关键词 IRRIGATION MODELLING SALINITY MODELLING SALINE SHALLOW Watertable IRRIGATION management Ord RIVER IRRIGATION area
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IoT-Enabled Autonomous System Collaboration for Disaster-Area Management 被引量:2
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作者 Abenezer Girma Niloofar Bahadori +5 位作者 Mrinmoy Sarkar Tadewos G.Tadewos Mohammad R.Behnia M.Nabil Mahmoud Ali Karimoddini Abdollah Homaifar 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2020年第5期1249-1262,共14页
Timely investigating post-disaster situations to locate survivors and secure hazardous sources is critical,but also very challenging and risky.Despite first responders putting their lives at risk in saving others,huma... Timely investigating post-disaster situations to locate survivors and secure hazardous sources is critical,but also very challenging and risky.Despite first responders putting their lives at risk in saving others,human-physical limits cause delays in response time,resulting in fatality and property damage.In this paper,we proposed and implemented a framework intended for creating collaboration between heterogeneous unmanned vehicles and first responders to make search and rescue operations safer and faster.The framework consists of unmanned aerial vehicles(UAVs),unmanned ground vehicles(UGVs),a cloud-based remote control station(RCS).A light-weight message queuing telemetry transport(MQTT)based communication is adopted for facilitating collaboration between autonomous systems.To effectively work under unfavorable disaster conditions,antenna tracker is developed as a tool to extend network coverage to distant areas,and mobile charging points for the UAVs are also implemented.The proposed framework’s performance is evaluated in terms of end-to-end delay and analyzed using architectural analysis and design language(AADL).Experimental measurements and simulation results show that the adopted communication protocol performs more efficiently than other conventional communication protocols,and the implemented UAV control mechanisms are functioning properly.Several scenarios are implemented to validate the overall effectiveness of the proposed framework and demonstrate possible use cases. 展开更多
关键词 Architectural analysis and design language(AADL)and cloud computing disaster area management internet of things(IoT) message queuing telemetry transport(MQTT) unmanned aerial vehicle(UAV) unmanned ground vehicle(UGV)
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Discussion on the model of community management of chronic diseases in cold areas 被引量:1
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作者 Rui Jiang Yuquan Zhao Yongchen Wang 《Frigid Zone Medicine》 2021年第1期17-22,共6页
Because of the overbearing low temperature,cold areas increase the morbidity and mortality of chronic non-communicable diseases(chronic diseases)in exposed populations.With the growth of the aging population and the s... Because of the overbearing low temperature,cold areas increase the morbidity and mortality of chronic non-communicable diseases(chronic diseases)in exposed populations.With the growth of the aging population and the superposition of lifestyle risk factors,the number of people with chronic diseases in cold areas is climbing,and the family and social burdens are rising.These health-threatening circumstances in the cold areas render the general practitioners to face serious challenges and difficulties in the community management of chronic diseases.This paper summarizes the current situation of chronic disease management in cold areas and explores the relevant management models so as to provide a useful reference for regional health construction,graded diagnosis and treatment,and prevention and control of chronic diseases in China. 展开更多
关键词 cold area chronic disease community management general practitioner
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A journey towards shared governance: status and prospects for collaborative management in the protected areas of Bangladesh 被引量:4
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作者 A. Z. M. Manzoor Rashid Donna Craig +1 位作者 Sharif Ahmed Mukul Niaz Ahmed Khan 《Journal of Forestry Research》 SCIE CAS CSCD 2013年第3期599-605,602-605,共7页
Establishment of Protected Areas (PAs), in the face of rapid deforestation, forest degradation and climate change has been one of the key efforts in conservation of biodiversity worldwide in recent times. While Bang... Establishment of Protected Areas (PAs), in the face of rapid deforestation, forest degradation and climate change has been one of the key efforts in conservation of biodiversity worldwide in recent times. While Bangladesh has gained a degree of prominence in the world for its successful social forestry programs, the concept of collaborative pro- tected area management is rather new in the country, initiated in 2004 by the Bangladesh Forest Department in five PAs with financial assistance from USAID. Based on empirical evidence from three of the pilot PAs, we examined the achievements and associated challenges and prospects for co-management. Our fieldwork revealed a number of challenges faced by co-management institutions: (1) institutions were dominated by the elite group, overshadowing the voice of the community people; (2) mutual trust and collective performance are key to good governance but had not taken root in the PAs; (3) encroachment onto forest land and subsequent conversion to agriculture remained a serious problem that discouraged forest-dependent people from participating actively in co-management initiatives; (4) legal provisions (including acts, rules and policies) were not clearly and adequately disseminated and understood at the community level; (5) there remained a degree of ambiguity regarding the roles and responsibilities of forest department (FD) and co-management committees (CMC) in field operations, and this was not enhancing transparency and accountability of the overall initiative; (6) the long-term sustainability of co-management institutions was another major concern, as the local intuitional structure was still in a nascent stage, and provisioning of resources (either internally or externally) remained somewhat uncertain. We offer recommendations for improve- ment. 展开更多
关键词 protected area CO-management Nishorgo IPAC govern-ance
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Forces Driving Changes in Cultivated Land and Management Countermeasures in the Three Gorges Reservoir Area,China 被引量:14
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作者 CAO Yin-gui BAI Zhong-ke +1 位作者 ZHOU Wei WANG Jing 《Journal of Mountain Science》 SCIE CSCD 2013年第1期149-162,共14页
The Three Gorges project accelerates economic development in the Three Gorges Reservoir Area.This paper aimed to investigate the distribution,changes and features of cultivated land in this area,analyze the forces dri... The Three Gorges project accelerates economic development in the Three Gorges Reservoir Area.This paper aimed to investigate the distribution,changes and features of cultivated land in this area,analyze the forces driving the changes in cultivated land area,and propose the countermeasures for cultivated land management.Transition matrix was used to analyze the features of cultivated land changes,and quantitative analysis and qualitative analysis were adopted to research the driving forces according to the features of cultivated land changes.Cultivated land in the Three Gorges Reservoir Area mainly lay to the northwest of the Yangtze River,especially the upper reaches.The areas of cultivated land increased from 1996 to 1999,then decreased from 2000 to 2006,and finally increased again from 2007 to 2009.The important forces driving changes in cultivated land included government policies,employment and food security,increasing construction land,agriculture structure adjustment,land rearrangement,inundation.During cultivated land management,firstly,it is necessary to insist on the principle of cultivated land protection,standardize land exploitation and strictly restrict the transformation of cultivated land into non-farming land.Secondly,land rearrangement must be implemented,which can not only increase the area of the cultivated land,but also improve the quality of the cultivated land.Thirdly,it is feasible to intensify eco-agriculture construction to increase the quantity and quality of cultivated land.Fourthly,it is helpful to improve the traditional agriculture production methods to promote cultivated land quality.Lastly,it is important to propagandize cultivated land protection and realize the enormous pressure of cultivated land shortage,making more people obligated to protect cultivated land. 展开更多
关键词 耕地变化 三峡库区 耕地管理 驱动力 中国 耕地面积 农业结构调整 生态农业建设
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LAND DEGRADATION AND ITS MANAGEMENT IN THE ARID AND SEMI ARID AREAS OF CHINA
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作者 Leng Shuying Zheng Du Institute of Geography, CAS, Beijing 100101 People’s Republic of China 《Journal of Geographical Sciences》 SCIE CSCD 1997年第4期22-35,共14页
hina is a large country with varied physical environments. Some of them are quite fragile and susceptible to land degradation, such as the arid and semiarid areas, as well as the slopeland of extensive mountain and hi... hina is a large country with varied physical environments. Some of them are quite fragile and susceptible to land degradation, such as the arid and semiarid areas, as well as the slopeland of extensive mountain and hilly areas. Therefore, human actions play a significant role in desertification processes. It was estimated that there are 3,327,000 km 2 of desertified areas in China, in which 1,533,000 km 2 are desert, gobi and sandy desertified areas. Most of them are in arid, semiarid and dry sub humid areas in northern China. Soil salinization is another kind of land desertification. It was estimated that about one fifth of the 66,700 km 2 of farmlands have been affected by soil salinization to certain extent. Grassland degradation is also serious in China. The main problems are the reduction of bio mass, decline of preferred species and soil erosion induced by overgrazing. In Inner Mongolia the area of degraded grasslands occupies 43.8 percent of the total available area of the grasslands. The productivity of grasslands in Tibet has decreased by 20 - 50 percent [21]. Soil and water erosion is more serious in China. Based on remote sensing general survey initiated by Ministry of Water Resources in 1992, the total soil eroded area is 3,670,000 km 2, occupying 38.2 percent of the total territorial area, in which 1,790,000 km 2 is water eroded area and 1,880,000 km 2 is wind eroded area. 展开更多
关键词 Land degradation land management arid and semi arid area China
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General Design of Rural Area Electricity Management Information System Based on Intranet
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作者 WANG Xing fen (Northeast Agricultural University, Harbin 150030,PRC) 《Journal of Northeast Agricultural University(English Edition)》 CAS 2000年第1期29-32,共4页
Based on the Intranet technique,the design and implementation of rural area electricity Management Information System(RAEMIS)is researched.And then,a new RAEMIS with opening dynamic multimedia hypertext architecture i... Based on the Intranet technique,the design and implementation of rural area electricity Management Information System(RAEMIS)is researched.And then,a new RAEMIS with opening dynamic multimedia hypertext architecture is proposed.The advantages of new system include uniform user interface friendly,quick and accurate database accessing,and easy maintenance. 展开更多
关键词 rural area electucity management INTRANET computer network ASP
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A comparison of the management models of protected areas between China and the southern Africa region
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作者 Claudino DA VEIGA MENDONA 《Forestry Studies in China》 CAS 2010年第3期151-157,共7页
A comparison of the management models of protected areas between China and the African south region allows reading and evaluating the similarities and differences in the use of management model as a management tool fo... A comparison of the management models of protected areas between China and the African south region allows reading and evaluating the similarities and differences in the use of management model as a management tool for protected areas and specifi- cally some positive and negative features of the management approaches in these two regions. Previous to this study it verified the designation of protected areas as increasing at a faster rate than ever before, comparatively much faster now in China than southern Africa regions. With the aim of evaluating similarities and differences in the use of management model as a management tool for pro- tected areas in China and southern Africa Region, both qualitative and quantitative data were collected. Qualitative data were mainly from policy documents, scientific articles and magazine reports, whereas quantitative (secondary data) statistical data from Interna- tional Union for Conservation of Nature Resources (IUCN) and World Database on Protected Areas (WDPA). In view of the data sources above, the study found that in China all the protected areas are state owned whilst in southern Africa regions there are some protected areas that are privately owned; also that the models or typology of governance applied are successful for the fact that they both combine co-management or collaborative management, community-conserved areas and private protected areas that are subject to greater success and can help design planning and management than those who use exclusively government management. To this, the study concluded that the use of management model is influenced by the type of governance a country applies to its reserved areas. 展开更多
关键词 protected areas SUSTAINABILITY China southern Africa region management model
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Utilization and Management of Small Fishery Population Resources in Coastal and Offshore Areas of China
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作者 Jiahua LE Xiangguo ZHANG Yingqi ZHOU 《Asian Agricultural Research》 2016年第1期30-32,共3页
There are numerous types of living resources in coastal and offshore areas of China. In recent years,both the population type and quantity structure have significant changes,and the stock of small fishery population r... There are numerous types of living resources in coastal and offshore areas of China. In recent years,both the population type and quantity structure have significant changes,and the stock of small fishery population resources is increasing. This population is precious protein resource. It is urgent to study how to take prompt and effective fishing and take full advantage of processing,utilization and management. Traditional utilization methods are limited by many factors. The utilization efficiency is extremely low. The feed conversion rate of some mariculture fishes with fresh small trash fishes as feeds is even as low as 0. 2. Innovative production and management organization model with aquatic enterprises as leaders greatly increases the utilization efficiency of small fish resources with the aid of marine processing mother ship. In order to further accelerate developing and utilizing small fishery population resources in coastal and offshore areas,China should launch survey and utilization researches of small fishery population resources in coastal and offshore areas,formulate practical and feasible laws,regulations and policies,actively encourage and support autonomous innovative management mode of enterprises,and promote effective utilization and management of coastal and offshore fishery resources. 展开更多
关键词 FISHERY POPULATION RESOURCES COASTAL and OFFSHORE areas SMALL FISHERY POPULATION RESOURCES Utilization and management
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Soil and Water Resources and Land Sustainable Productivity in the Catchment Area with Intensive Management in Hilly Red Soil Regions,China
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作者 HUANGDao-you WANGKe-lin +2 位作者 CHENGui-qiu HUANGMin PENGTing-bo 《Agricultural Sciences in China》 CAS CSCD 2004年第5期356-363,共8页
Taking an example of Majiayu Catchment Area (14.15 ha) in Taoyuan County of HunanProvince, the soil and water resources dynamics, fertility evolution characteristics andland productivity changing situation were studie... Taking an example of Majiayu Catchment Area (14.15 ha) in Taoyuan County of HunanProvince, the soil and water resources dynamics, fertility evolution characteristics andland productivity changing situation were studied. Fixed observation results from 1993to 2002 showed that pools covering about 15% of total area could store up 10% of surfacerunoff, keep 78.1% of eroded soil and 65.4% of lost nutrients. The yearly ratio ofinterception and evapotranspiration in land, storage in pools and drainage was 7:2:1,which ensured the resources and nutrients equilibrium and a benign recycle in thecatchment area system, and benefited the aquatic culture and helped to resist seasonaldrought. Moreover, the results showed that soil erosion modulus decreased significantly,equal to or lower than soil loss tolerance (≤500 tkm-2) in reddish yellow soil regions.Soil organic matter, total and available N content in sloping land, dryland and paddyfield increased steadily (>10%); water storage enhanced by more than 20% in sloping landand dryland in drought season; crop production increased by more than 20%; and productionof trees, fruits, tea and fish as well as land productivity increased yearly. 展开更多
关键词 Catchment area with intensive management Soil and water resources Soil fertility Land sustainable productivity Hilly red soil region
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