Species, application frequencies, habitat features and combination modes of Rhododendron species in Kunming City were studied through random sampling in different subareas of Kunming City. The results show that Rhodod...Species, application frequencies, habitat features and combination modes of Rhododendron species in Kunming City were studied through random sampling in different subareas of Kunming City. The results show that Rhododendron species were widely applied in parks, residential areas and street-side green spaces. Diversified application patterns presented excellent landscape effects, but only a few species were used, for example, Rhododendron pulchrum Sweet., R. hybridum, R. simsii var. simsii, while R. delavayi Franch. and R. simsii var. mesembrinum Rehd. were occasionally found. Landscaping features of Kunming were characterized by domination of Rhododendron species, advantages and problems of Rhododendron species in landscaping of Kunming City were analyzed. It was proposed that introduction and domestication of wild Rhododendron species should be enhanced, rich germplasm resources of Rhododendron species should be fully used, and more indigenous Rhododendron species applied.展开更多
Sustainable growth is a prerequisite for high-quality development,and inclusive green growth is regarded as an important way to realize sustainable growth.This paper constructs a tourism inclusive green growth index(I...Sustainable growth is a prerequisite for high-quality development,and inclusive green growth is regarded as an important way to realize sustainable growth.This paper constructs a tourism inclusive green growth index(IGGI)system based on the 2018 Asian Development Bank IGGI.Using Shandong Province from 2017 to 2019,the entropy weight method is utilized to explore the degree of coupling and coordination among the subsystems of tourism inclusive green growth.The study shows that:(1)the tourism IGGI continues to grow;(2)in the tourism inclusive green growth system,the social equity subsystem shows a trend of steady improvement;and(3)in the system,there is a slight discordance between the economic growth subsystem and the environmental sustainability subsystem.The study aims to provide the scientific basis for the high-quality development of tourism and theoretical support for the field of tourism and environmental sustainability.展开更多
The movement of the Iron&Steelmaking(I&S)industry towards Net-Zero emissions and digitalized processes through disruptive,breakthrough technologies will be achieved through the use of Hydrogen.The biggest chal...The movement of the Iron&Steelmaking(I&S)industry towards Net-Zero emissions and digitalized processes through disruptive,breakthrough technologies will be achieved through the use of Hydrogen.The biggest challenge for the refractory industry is to continue to meet the performance expectations while,at the same time,moving to a more sustainable production direction.The complexity and urgency of these technological changes,highlighted by the European Green Deal,requires ambitious,international,interdisciplinary and intersectoral projects,bringing together institutes from across the global value chain,to carry out cutting edge research.The European Union,through its flagship doctoral training program,MSCA,has,and continues to support research and development as well as the promotion of the refractory industry in Europe.An introduction to two MSCA projects and some of the results achieved are highlighted within this article.展开更多
The functionality of buildings depends on the climate they are subjected to,this means buildings constructed these days need to be built to perform efficiently within the current and future climate and with the aim of...The functionality of buildings depends on the climate they are subjected to,this means buildings constructed these days need to be built to perform efficiently within the current and future climate and with the aim of reducing the greenhouse emission induced on the environment.In order to lower CO_(2) emissions and assist in reinforcing the capability of cities to adapt to climate change whilst enhancing the quality of the built environment,it is vital to improve the environmental performance and energy efficiency in buildings.This study aims to identify and compare existing GBRS(green building rating system)with Nigerian climatic condition.Proposal criteria weighting was developed from the questionnaire supplying expert opinions.It began with a comparative analysis of GBRS.The analysis was conducted to find the similarities and differences between existing rating systems and come up with an appropriate rating system for Nigeria.These approaches included a fieldwork approach(pilot study,survey);questionnaire;and interviews,both structured and unstructured.Then,the information generated in this pre-test investigation formed the conversational guide and described the decision to determine the main factors that should be involved in the new assessment system for Nigeria.展开更多
Annual forage legumes are important components of livestock production systems in East Texas and the southeastern US. Forage legumes contribute nitrogen (N) to cropping systems through biological N fixation, and their...Annual forage legumes are important components of livestock production systems in East Texas and the southeastern US. Forage legumes contribute nitrogen (N) to cropping systems through biological N fixation, and their seasonal biomass production can be managed to complement forage grasses. Our research objectives were to evaluate both warm- and cool-season annual forage legumes as green manure for biomass, N content, ability to enhance soil organic carbon (SOC) and soil N, and impact on post season forage grass crops. Nine warm-season forage legumes (WSL) were spring planted and incorporated as green manure in the fall. Forage rye (Secale cereale L.) was planted following the incorporation of WSL treatments. Eight cool-season forage legumes (CSL) were fall planted in previously fallow plots and incorporated as green manure in late spring. Sorghum-sudangrass (Sorghum bicolor x Sorghum bicolor var. sudanense) was planted over all treatments in early summer after forage rye harvest and incorporation of CSL treatments. Sorghum-sudangrass was harvested in June, August and September, and treatments were evaluated for dry matter and N concentration. Soil cores were taken from each plot, split into depths of 0 to 15, 15 to 30 and 30 to 60 cm, and soil C and N were measured using combustion analysis. Nylon mesh bags containing plant samples were buried at 15 cm and used to evaluate decomposition rate of above ground legume biomass, including change in C and N concentrations. Mungbean (Vigna radiata L. [Wilczek]) had the highest shoot biomass yield (6.24 t DM ha<sup>-1</sup>) and contributed the most total N (167 kg∙ha<sup>-1</sup>) and total C (3043 kg∙ha<sup>-1</sup>) of the WSL tested. Decomposition rate of WSL biomass was rapid in the first 10 weeks and very slow afterward. Winter pea (Pisum sativum L. spp. sativum), arrow leaf clover (Trifolium vesiculosum Savi.), and crimson clover (Trifolium incarnatum L.) were the most productive CSL in this trial. Austrian winter pea produced 8.41 t DM ha<sup>-1</sup> with a total N yield of 319 kg N ha<sup>-1</sup> and total C production of 3835 kg C ha<sup>-1</sup>. The WSL treatments had only small effects on rye forage yield and N concentration, possibly due to mineralization of N from a large SOC pool already in place. The CSL treatments also had only minimal effects on sorghum-sudangrass forage production. Winter pea, arrow leaf and crimson clover were productive cool season legumes and could be useful as green manure crops. Mungbean and cowpea (Vigna unguiculata [L.] Walp.) were highly productive warm season legumes but may include more production risk in green manure systems due to soil moisture competition.展开更多
Since the 18 th National Congress of the Communist Party of China,General Secretary Xi Jinping delivered a series of speeches on ecological environment and poverty governance,forming the Xi Jinping's eco-poverty a...Since the 18 th National Congress of the Communist Party of China,General Secretary Xi Jinping delivered a series of speeches on ecological environment and poverty governance,forming the Xi Jinping's eco-poverty alleviation ideology.In this paper,the Xi Jinping's eco-poverty alleviation ideology is taken as the research object.Using the methods of literature analysis and comparative analysis,the origin of eco-poverty alleviation theory is explored from the common prosperity theory and the theory of ecological capital,and the practice foundation is found out from practical cases.The relationship between the ecological damage and poverty is systematically analyzed,and the mechanism of ecological poverty is explored in detail.The basic connotation of Xi Jinping's eco-poverty alleviation is expounded,and it consists of three parts:guiding ideology layer,implementation layer,and guarantee layer.By perfecting and innovating the market mechanism,social management mechanism,performance evaluation mechanism,integration mechanism with other poverty alleviation methods,and ecological immigration mechanism of ecological poverty,the realization of Xi Jinping's eco-poverty alleviation concept could be guaranteed.展开更多
Green development has gradually become the main theme of the current world economic development.Green transformation development and cracking the contradiction between ecology and economy need to build an effective ec...Green development has gradually become the main theme of the current world economic development.Green transformation development and cracking the contradiction between ecology and economy need to build an effective ecological capital operation system and mechanism to support,encourage the effective operation of regional ecological capital,promote the appreciation and preservation of ecological capital,and escort the operation.This paper constructs a four-in-one regional ecological capital operation mechanism system,in which the"accumulation mechanism"is the prerequisite,the"conversion mechanism"is the key link,the"compensation mechanism"is an important supplement,and the"incentive mechanism"is the safeguard measure,which aims to ensure the smooth progress of the construction of beautiful China in the new era and realize the socialist modern power.展开更多
With the advancement of the transformation,the contradiction between the residents’demand for a better living environment and the convenience of living in the settlements comes to the fore.Effective identification,or...With the advancement of the transformation,the contradiction between the residents’demand for a better living environment and the convenience of living in the settlements comes to the fore.Effective identification,organic integration,timely adoption,and correct decision-making for the transformation of old neighborhoods are pressing issues in the transformation of old neighborhoods.Therefore,this paper takes the green building evaluation standards of various countries as the research basis and support for the construction of the transformation strategy of old neighborhoods.Through the collection and comparative analysis of the indicators of green building evaluation standards,the index system of transformation is formed,and it also provides a certain foundation for the subsequent related research.展开更多
[Objective]The aimed to optimize transformation system for Agrobacterium-mediated green cotton shoot tip and provide reference for genetic engineering-assisted breeding of color cotton. [Method]With shoot tip of natur...[Objective]The aimed to optimize transformation system for Agrobacterium-mediated green cotton shoot tip and provide reference for genetic engineering-assisted breeding of color cotton. [Method]With shoot tip of natural green cotton as receptor and by using Agrobacterium-mediated transformation method,the optimum conditions of regeneration system were obtained. [Result]Combining with vacuum infiltration,3-old-day shoot tips were infected for 10 minutes in Abarobacterium suspension with OD600 value about 0.5 followed by co-culture for 24 h on the medium containing MS+l mg/L KT,pH value of 5.8. The regeneration culture was conducted in MS medium containing l mg/L KT and increasingly 30,50 and 70 mg/L Kan. The highest transformation frequency was 34.6%,and the positive resistant plantlets of green cotton 9804 were obtained. [Conclusion]Green cotton is more beneficial than white cotton to conduct genetic transformation.展开更多
Environmental and ecological problems in the urban-rural integration were analyzed, characteristics of urban green space system introduced, such as excellent landscape eco-structure, distinctive historical and humanis...Environmental and ecological problems in the urban-rural integration were analyzed, characteristics of urban green space system introduced, such as excellent landscape eco-structure, distinctive historical and humanistic features, and diversified natural landscape resources, and also challenges pointed out. Evolution, overall spatial structure and conservation concept of conservation-minded urban green space system planning were elaborated, on the basis of which the evaluation system of conservation-minded urban green space system was studied, and it was proposed that mutual relationship between impact factors of compound value and qualitative evaluation factors should be taken into consideration as a whole in evaluating conservation effects of green space system. Quantitative evaluation indexes and qualitative evaluation measures were analyzed, an objective and precise evaluation system for the conservation-minded urban green space system was established by combining qualitative and quantitative analysis to improve ecological environment during the urbanization, and fully show planning concepts of conservation-minded green space system.展开更多
The newly invented farming method, Fenlong technology, uses self-propelled powder-ridging mechanical screw-type drill for the deep-cultivation and deep tillage of soil, and it can enhance the double tillering depth th...The newly invented farming method, Fenlong technology, uses self-propelled powder-ridging mechanical screw-type drill for the deep-cultivation and deep tillage of soil, and it can enhance the double tillering depth than the conventional tillage. Moreover, the tilth soil is uniform in size and in small, broken bits and loose. It expands the new soil "four warehouses" (namely soil nutrient warehouse, water warehouse, oxygen warehouse and microbial warehouse), and under the conditions of "three no increase" in chemical fertilizer and pesticide, irrigation water and labor input, various crops show a increase of 10%-30% in yield (average increase by 25.48% in the 23 rice, wheat and corn planting areas of several provinces), 5% in quality, and 1 time in water retention. And the sustainable production-increasing ef- fect lasts 2-3 years after once Fenlong tillage, with the comparative efficiency reaching about 20%. It is suggested using Fenlong to activate the arable land, saline land grassland and rivers resources, so as to drive the construction of green agriculture "3+1" industrial system, which can promote the realization of the increases in available agricultural resource stock, quality food resource stock and available water resource stock in China and even in the world, realize the "two responses" to ecological environment deterioration and climate warming, and achieve the harmonious coexistence of human beings and nature.展开更多
Through analyzing problems in the planning of green space system in cities of China,strategies for constructing urban green space system are put forward based on the requirements of conservation-oriented landscape.
Based on overview of development history and research advances of do- mestic and foreign urban green space system planning, this paper made clear rele- vant concepts of the urban green space system. Urban green space ...Based on overview of development history and research advances of do- mestic and foreign urban green space system planning, this paper made clear rele- vant concepts of the urban green space system. Urban green space system is a key region for protecting ecological resources. Taking Chongqing Economic and Technological Development Zone as an example, on the basis of in-depth survey, it made a systematic study on green space system planning combining current situa- tions of green space and regional spatial characteristics of Chongqing Economic and Technological Development Zone. It discussed how to restore and build urban green space system, protect ecological environment, and promote regional economic de- velopment and harmony between human and nature through design of ecological technologies and landscape in the ecological planning of urban green space system.展开更多
With the urban green space system planning of small cities in mountainous areas as the study object,the planning practices are analyzed and studied to summarize the common characteristics of urban green space system p...With the urban green space system planning of small cities in mountainous areas as the study object,the planning practices are analyzed and studied to summarize the common characteristics of urban green space system planning in those small cities.Being combined with relevant national standards and regulations,the problems that those small cities are faced with in their urban green space system planning are analyzed,then corresponding countermeasures and suggestions are put forward to resolve problems in the practical planning.展开更多
This paper elaborated natural conditions of Dali City,jurisdictions which included 2 offices,2 towns,89 village offices and 429 natural villages,and planning scope which contained the precinct area of Dali City and co...This paper elaborated natural conditions of Dali City,jurisdictions which included 2 offices,2 towns,89 village offices and 429 natural villages,and planning scope which contained the precinct area of Dali City and covers a total area of 1 815 km2.In accordance with the urban development space and functional layout of "one lake,two lines and two slices"("one lake" refers to Erhai Lake;"two lines" stands for the area in the east and west of Erhai Lake;"two slices" indicates the area in the north and south of Erhai Lake),based on the construction of provincial and national garden city and of large landscape city,green spatial network system with the combination of "spot","line" and "surface" was put forward,so as to manifest "largeness","wideness","harmony" and "linkage".And finally,the planning structure of green space system of "two circles,two slices,four belts,seven spots and eighteen waterfronts area"("two circles" refers to the area around the lake and the area around the mountain,"two slices" stands for the area in the north and south of Erhai Lake,"four belts" means four landscape belts of the garden city,"seven spots" indicates the seven green landscape spots in villages and towns,"eighteen waterfronts area" is colored green belt in eighteen stream's basin) was proposed.展开更多
By taking the regulatory detailed planning of Wenfeng District in Nanchong City for example,public green spaces,protective green spaces and ecological green spaces are planned systematically on the basis of "prot...By taking the regulatory detailed planning of Wenfeng District in Nanchong City for example,public green spaces,protective green spaces and ecological green spaces are planned systematically on the basis of "protective,needs-oriented,systematic and characteristic" principles.Landscape system structure of "one belt,one surface,four axes,five districts and multiple points" was analyzed,concrete designs of landscape infiltration surface,landscape axis and style division elaborated.The way of integrating landscape system planning and current situation was discussed in the image construction of new urban district to co-construct characteristic urban images,realize the coordination of city,environment and culture,optimization of urban eco-environment benefits,orderly and sustainable development of urban ecological conditions.展开更多
基金Supported by Scientific Research Start-up Foundation(A2002160)Yunnan Province Natural Science Foundation(2009CD064)
文摘Species, application frequencies, habitat features and combination modes of Rhododendron species in Kunming City were studied through random sampling in different subareas of Kunming City. The results show that Rhododendron species were widely applied in parks, residential areas and street-side green spaces. Diversified application patterns presented excellent landscape effects, but only a few species were used, for example, Rhododendron pulchrum Sweet., R. hybridum, R. simsii var. simsii, while R. delavayi Franch. and R. simsii var. mesembrinum Rehd. were occasionally found. Landscaping features of Kunming were characterized by domination of Rhododendron species, advantages and problems of Rhododendron species in landscaping of Kunming City were analyzed. It was proposed that introduction and domestication of wild Rhododendron species should be enhanced, rich germplasm resources of Rhododendron species should be fully used, and more indigenous Rhododendron species applied.
基金supported by the S&T Program of Hebei(soft science research project)of China[Grant No.21557603D].
文摘Sustainable growth is a prerequisite for high-quality development,and inclusive green growth is regarded as an important way to realize sustainable growth.This paper constructs a tourism inclusive green growth index(IGGI)system based on the 2018 Asian Development Bank IGGI.Using Shandong Province from 2017 to 2019,the entropy weight method is utilized to explore the degree of coupling and coordination among the subsystems of tourism inclusive green growth.The study shows that:(1)the tourism IGGI continues to grow;(2)in the tourism inclusive green growth system,the social equity subsystem shows a trend of steady improvement;and(3)in the system,there is a slight discordance between the economic growth subsystem and the environmental sustainability subsystem.The study aims to provide the scientific basis for the high-quality development of tourism and theoretical support for the field of tourism and environmental sustainability.
基金the European Union's Horizon 2020 research and innovation program under grant agreement No.764987.The CESAREF project has received funding from the European Union's Horizon Europe research and innovation programunder grant agreement No.101072625.
文摘The movement of the Iron&Steelmaking(I&S)industry towards Net-Zero emissions and digitalized processes through disruptive,breakthrough technologies will be achieved through the use of Hydrogen.The biggest challenge for the refractory industry is to continue to meet the performance expectations while,at the same time,moving to a more sustainable production direction.The complexity and urgency of these technological changes,highlighted by the European Green Deal,requires ambitious,international,interdisciplinary and intersectoral projects,bringing together institutes from across the global value chain,to carry out cutting edge research.The European Union,through its flagship doctoral training program,MSCA,has,and continues to support research and development as well as the promotion of the refractory industry in Europe.An introduction to two MSCA projects and some of the results achieved are highlighted within this article.
文摘The functionality of buildings depends on the climate they are subjected to,this means buildings constructed these days need to be built to perform efficiently within the current and future climate and with the aim of reducing the greenhouse emission induced on the environment.In order to lower CO_(2) emissions and assist in reinforcing the capability of cities to adapt to climate change whilst enhancing the quality of the built environment,it is vital to improve the environmental performance and energy efficiency in buildings.This study aims to identify and compare existing GBRS(green building rating system)with Nigerian climatic condition.Proposal criteria weighting was developed from the questionnaire supplying expert opinions.It began with a comparative analysis of GBRS.The analysis was conducted to find the similarities and differences between existing rating systems and come up with an appropriate rating system for Nigeria.These approaches included a fieldwork approach(pilot study,survey);questionnaire;and interviews,both structured and unstructured.Then,the information generated in this pre-test investigation formed the conversational guide and described the decision to determine the main factors that should be involved in the new assessment system for Nigeria.
文摘Annual forage legumes are important components of livestock production systems in East Texas and the southeastern US. Forage legumes contribute nitrogen (N) to cropping systems through biological N fixation, and their seasonal biomass production can be managed to complement forage grasses. Our research objectives were to evaluate both warm- and cool-season annual forage legumes as green manure for biomass, N content, ability to enhance soil organic carbon (SOC) and soil N, and impact on post season forage grass crops. Nine warm-season forage legumes (WSL) were spring planted and incorporated as green manure in the fall. Forage rye (Secale cereale L.) was planted following the incorporation of WSL treatments. Eight cool-season forage legumes (CSL) were fall planted in previously fallow plots and incorporated as green manure in late spring. Sorghum-sudangrass (Sorghum bicolor x Sorghum bicolor var. sudanense) was planted over all treatments in early summer after forage rye harvest and incorporation of CSL treatments. Sorghum-sudangrass was harvested in June, August and September, and treatments were evaluated for dry matter and N concentration. Soil cores were taken from each plot, split into depths of 0 to 15, 15 to 30 and 30 to 60 cm, and soil C and N were measured using combustion analysis. Nylon mesh bags containing plant samples were buried at 15 cm and used to evaluate decomposition rate of above ground legume biomass, including change in C and N concentrations. Mungbean (Vigna radiata L. [Wilczek]) had the highest shoot biomass yield (6.24 t DM ha<sup>-1</sup>) and contributed the most total N (167 kg∙ha<sup>-1</sup>) and total C (3043 kg∙ha<sup>-1</sup>) of the WSL tested. Decomposition rate of WSL biomass was rapid in the first 10 weeks and very slow afterward. Winter pea (Pisum sativum L. spp. sativum), arrow leaf clover (Trifolium vesiculosum Savi.), and crimson clover (Trifolium incarnatum L.) were the most productive CSL in this trial. Austrian winter pea produced 8.41 t DM ha<sup>-1</sup> with a total N yield of 319 kg N ha<sup>-1</sup> and total C production of 3835 kg C ha<sup>-1</sup>. The WSL treatments had only small effects on rye forage yield and N concentration, possibly due to mineralization of N from a large SOC pool already in place. The CSL treatments also had only minimal effects on sorghum-sudangrass forage production. Winter pea, arrow leaf and crimson clover were productive cool season legumes and could be useful as green manure crops. Mungbean and cowpea (Vigna unguiculata [L.] Walp.) were highly productive warm season legumes but may include more production risk in green manure systems due to soil moisture competition.
基金Supported by Hunan Provincial Social Science Fund Project(21YBX021)Hunan Provincial Natural Science Foundation Project(2024JJ7234).
文摘Since the 18 th National Congress of the Communist Party of China,General Secretary Xi Jinping delivered a series of speeches on ecological environment and poverty governance,forming the Xi Jinping's eco-poverty alleviation ideology.In this paper,the Xi Jinping's eco-poverty alleviation ideology is taken as the research object.Using the methods of literature analysis and comparative analysis,the origin of eco-poverty alleviation theory is explored from the common prosperity theory and the theory of ecological capital,and the practice foundation is found out from practical cases.The relationship between the ecological damage and poverty is systematically analyzed,and the mechanism of ecological poverty is explored in detail.The basic connotation of Xi Jinping's eco-poverty alleviation is expounded,and it consists of three parts:guiding ideology layer,implementation layer,and guarantee layer.By perfecting and innovating the market mechanism,social management mechanism,performance evaluation mechanism,integration mechanism with other poverty alleviation methods,and ecological immigration mechanism of ecological poverty,the realization of Xi Jinping's eco-poverty alleviation concept could be guaranteed.
基金Supported by Hunan Provincial Social Science Fund Project(21YBX021)Hunan Provincial Natural Science Foundation Project(2024JJ7234).
文摘Green development has gradually become the main theme of the current world economic development.Green transformation development and cracking the contradiction between ecology and economy need to build an effective ecological capital operation system and mechanism to support,encourage the effective operation of regional ecological capital,promote the appreciation and preservation of ecological capital,and escort the operation.This paper constructs a four-in-one regional ecological capital operation mechanism system,in which the"accumulation mechanism"is the prerequisite,the"conversion mechanism"is the key link,the"compensation mechanism"is an important supplement,and the"incentive mechanism"is the safeguard measure,which aims to ensure the smooth progress of the construction of beautiful China in the new era and realize the socialist modern power.
文摘With the advancement of the transformation,the contradiction between the residents’demand for a better living environment and the convenience of living in the settlements comes to the fore.Effective identification,organic integration,timely adoption,and correct decision-making for the transformation of old neighborhoods are pressing issues in the transformation of old neighborhoods.Therefore,this paper takes the green building evaluation standards of various countries as the research basis and support for the construction of the transformation strategy of old neighborhoods.Through the collection and comparative analysis of the indicators of green building evaluation standards,the index system of transformation is formed,and it also provides a certain foundation for the subsequent related research.
文摘[Objective]The aimed to optimize transformation system for Agrobacterium-mediated green cotton shoot tip and provide reference for genetic engineering-assisted breeding of color cotton. [Method]With shoot tip of natural green cotton as receptor and by using Agrobacterium-mediated transformation method,the optimum conditions of regeneration system were obtained. [Result]Combining with vacuum infiltration,3-old-day shoot tips were infected for 10 minutes in Abarobacterium suspension with OD600 value about 0.5 followed by co-culture for 24 h on the medium containing MS+l mg/L KT,pH value of 5.8. The regeneration culture was conducted in MS medium containing l mg/L KT and increasingly 30,50 and 70 mg/L Kan. The highest transformation frequency was 34.6%,and the positive resistant plantlets of green cotton 9804 were obtained. [Conclusion]Green cotton is more beneficial than white cotton to conduct genetic transformation.
文摘Environmental and ecological problems in the urban-rural integration were analyzed, characteristics of urban green space system introduced, such as excellent landscape eco-structure, distinctive historical and humanistic features, and diversified natural landscape resources, and also challenges pointed out. Evolution, overall spatial structure and conservation concept of conservation-minded urban green space system planning were elaborated, on the basis of which the evaluation system of conservation-minded urban green space system was studied, and it was proposed that mutual relationship between impact factors of compound value and qualitative evaluation factors should be taken into consideration as a whole in evaluating conservation effects of green space system. Quantitative evaluation indexes and qualitative evaluation measures were analyzed, an objective and precise evaluation system for the conservation-minded urban green space system was established by combining qualitative and quantitative analysis to improve ecological environment during the urbanization, and fully show planning concepts of conservation-minded green space system.
基金Supported by the Major Special Project for Science and Technology of Guangxi Province(Guike AA16380017)the Key Science and Technology Planning Project for Agriculture of Guangxi Province(201503)the Achievements Transformation of Guangxi Academy of Agricultural Sciences(Nongzhuancheng 201405)~~
文摘The newly invented farming method, Fenlong technology, uses self-propelled powder-ridging mechanical screw-type drill for the deep-cultivation and deep tillage of soil, and it can enhance the double tillering depth than the conventional tillage. Moreover, the tilth soil is uniform in size and in small, broken bits and loose. It expands the new soil "four warehouses" (namely soil nutrient warehouse, water warehouse, oxygen warehouse and microbial warehouse), and under the conditions of "three no increase" in chemical fertilizer and pesticide, irrigation water and labor input, various crops show a increase of 10%-30% in yield (average increase by 25.48% in the 23 rice, wheat and corn planting areas of several provinces), 5% in quality, and 1 time in water retention. And the sustainable production-increasing ef- fect lasts 2-3 years after once Fenlong tillage, with the comparative efficiency reaching about 20%. It is suggested using Fenlong to activate the arable land, saline land grassland and rivers resources, so as to drive the construction of green agriculture "3+1" industrial system, which can promote the realization of the increases in available agricultural resource stock, quality food resource stock and available water resource stock in China and even in the world, realize the "two responses" to ecological environment deterioration and climate warming, and achieve the harmonious coexistence of human beings and nature.
文摘Through analyzing problems in the planning of green space system in cities of China,strategies for constructing urban green space system are put forward based on the requirements of conservation-oriented landscape.
文摘Based on overview of development history and research advances of do- mestic and foreign urban green space system planning, this paper made clear rele- vant concepts of the urban green space system. Urban green space system is a key region for protecting ecological resources. Taking Chongqing Economic and Technological Development Zone as an example, on the basis of in-depth survey, it made a systematic study on green space system planning combining current situa- tions of green space and regional spatial characteristics of Chongqing Economic and Technological Development Zone. It discussed how to restore and build urban green space system, protect ecological environment, and promote regional economic de- velopment and harmony between human and nature through design of ecological technologies and landscape in the ecological planning of urban green space system.
文摘With the urban green space system planning of small cities in mountainous areas as the study object,the planning practices are analyzed and studied to summarize the common characteristics of urban green space system planning in those small cities.Being combined with relevant national standards and regulations,the problems that those small cities are faced with in their urban green space system planning are analyzed,then corresponding countermeasures and suggestions are put forward to resolve problems in the practical planning.
文摘This paper elaborated natural conditions of Dali City,jurisdictions which included 2 offices,2 towns,89 village offices and 429 natural villages,and planning scope which contained the precinct area of Dali City and covers a total area of 1 815 km2.In accordance with the urban development space and functional layout of "one lake,two lines and two slices"("one lake" refers to Erhai Lake;"two lines" stands for the area in the east and west of Erhai Lake;"two slices" indicates the area in the north and south of Erhai Lake),based on the construction of provincial and national garden city and of large landscape city,green spatial network system with the combination of "spot","line" and "surface" was put forward,so as to manifest "largeness","wideness","harmony" and "linkage".And finally,the planning structure of green space system of "two circles,two slices,four belts,seven spots and eighteen waterfronts area"("two circles" refers to the area around the lake and the area around the mountain,"two slices" stands for the area in the north and south of Erhai Lake,"four belts" means four landscape belts of the garden city,"seven spots" indicates the seven green landscape spots in villages and towns,"eighteen waterfronts area" is colored green belt in eighteen stream's basin) was proposed.
文摘By taking the regulatory detailed planning of Wenfeng District in Nanchong City for example,public green spaces,protective green spaces and ecological green spaces are planned systematically on the basis of "protective,needs-oriented,systematic and characteristic" principles.Landscape system structure of "one belt,one surface,four axes,five districts and multiple points" was analyzed,concrete designs of landscape infiltration surface,landscape axis and style division elaborated.The way of integrating landscape system planning and current situation was discussed in the image construction of new urban district to co-construct characteristic urban images,realize the coordination of city,environment and culture,optimization of urban eco-environment benefits,orderly and sustainable development of urban ecological conditions.