Seeking water and earning their livelihoods is the natural selection of human beings.Like other rivers on the earth,the Yangtze River is the birthplace of human civilization and survival.As an ecosystem,the Yangtze Ri...Seeking water and earning their livelihoods is the natural selection of human beings.Like other rivers on the earth,the Yangtze River is the birthplace of human civilization and survival.As an ecosystem,the Yangtze River Basin is evolving under the influences of natural factors and human activities.Because of soil erosion,pollution and human activities,the imbalance of secondary environment is exacerbated and the ecological environment has become more vulnerable,so it is urgent to mitigate and prevent the ecological crisis.The practice has proved that implementation of engineering measures is an effective way to improve the ecological environment.The Three Gorges Project (TGP) has a flood control storage capacity of 22.15 billion m 3,effectively storing the flood water upstream of Yichang,and protects 15 million people and 1.5 million hm 2 farmland.Furthermore,the project can prevent or slow down the sedimentation and shrinkage of the lakes in the middle Yangtze River such as Dongting Lake;with an average annual power generation of about 90 billion kW· h,it can significantly reduce the emissions of harmful gas like CO 2.In general,the construction of TGP is conducive to the ecological and environmental protection in the Yangtze River Basin and China,even the world.展开更多
The fuels that hardly pollute water body and atmospheric environment during burning are regarded as clean fuels. Liquefied Petroleum Gas （LPG）, Compressed Natural Gas （CNG） and Liquefied Natural Gas （LNG） are th...The fuels that hardly pollute water body and atmospheric environment during burning are regarded as clean fuels. Liquefied Petroleum Gas （LPG）, Compressed Natural Gas （CNG） and Liquefied Natural Gas （LNG） are three representative clean fuels that are widely used in the shipping industry. From both ecological and economic point of view, LNG is treated as the best fuels in shipping industry by the ship-owners and Chinese government. In this paper, the wide applications of LNG-powered ships are analyzed from three aspects, including the global energy source structure, economic demands and the formulation of international conventions. Also, the functions of relevant domestic policies on how to accelerate LNG-powered ships widely used in inland waters of Yangtze river, China are summarized. At last, the reasons of the use of LNG-powered ships in inland waters of China in recent years under the impulsion of various factors are discussed in the end.展开更多
In this paper,we establish the evaluation index system of urban ecological environment from the perspective of urban ecological environment.We established two criteria level indicators and fourteen index layer program...In this paper,we establish the evaluation index system of urban ecological environment from the perspective of urban ecological environment.We established two criteria level indicators and fourteen index layer program and calculate the level of each program index weight with the help of analytic hierarchy process.We take twenty-seven cities of Yangtze River Delta in 2013 and 2014 as an example and then analyze and rank them.The final results show that Shanghai,Suzhou,Hangzhou have relatively good ecological environment in the twenty-seven cities.展开更多
Situated in the arid area in the inland of the Central Asia,the reaches of the Tarim River possesses unique natural conditions. Being one of the most concentrated Populus euphratica distributing areas,it is a comparat...Situated in the arid area in the inland of the Central Asia,the reaches of the Tarim River possesses unique natural conditions. Being one of the most concentrated Populus euphratica distributing areas,it is a comparatively big ecosystem.Due to the human effect during the recent 30 years,especially the lack of overall planning of exploitation and utilization of water resources and poor awareness of ecologic protection, resources of the whole reaches and its ecologic environment is deteriorating, which rouses the attention from home and abroad.The programme being carried out is based on protecting the ecologic environment of the reaches of the Tarim River. The task is to protect ecologic environment,improve and restore the existing natural vegetation in order to prevent land desertification.展开更多
An attempt has been made in this paper to highlight some of environmental problems and suggest possible solutions for planning water resources development projects.
The protection of the Yangtze River Basin is a top priority in China,and the National People's Congress(NPC)Standing Committee has started to draft a new protection legislation specifically for the Yangtze River B...The protection of the Yangtze River Basin is a top priority in China,and the National People's Congress(NPC)Standing Committee has started to draft a new protection legislation specifically for the Yangtze River Basin.The Basin forms the epicenter of environmental,social,and economic life.Any efforts to protect the Basin must accommodate several competing interests from a multiplicity of interested parties and stakeholders such as local governments,villages,and business enterprises.Current relevant institutions and organizations are unable to sufficiently ensure environmental protection and green development in the Basin.The NPC Standing Committee must thus adopt a more holistic approach when creating new protection legislations aimed at the Yangtze River Basin.展开更多
Building the Yangtze River Economic Belt(YREB)is one of China’s three national development policies in the new era.The ecological environment of the Yangtze River Economic Belt must be protected not only for regional...Building the Yangtze River Economic Belt(YREB)is one of China’s three national development policies in the new era.The ecological environment of the Yangtze River Economic Belt must be protected not only for regional economic development but also for regional ecological security and ecological progress in this region.This paper takes the ecological space of the Yangtze River Economic Belt as the research object,based on land use data in 2010 and 2015,and uses the FLUS model to simulate and predict the ecological space of the research area in 2035.The variation of the research area’s ecological space area and its four sub-zones has remarkable stability under diverse situations.Both the production space priority scenarios(S1)and living space priority scenarios(S2)saw a fall in ecological space area,with the former experiencing the highest reduction(a total reduction of 25,212 km^(2)).Under the ecological space priority scenarios(S3)and comprehensive space optimization scenario(S4),the ecological space area increased,and the ecological space area expanded even more under the former scenario(a total growth of 23,648 km^(2)).In Yunnan-Guizhou,the ecological space is relatively stable,with minimal signs of change.In Sichuan-Chongqing,the Sichuan Basin,Zoige Grassland,and Longmen Mountains were significant regions of area changes in ecological space.In the middle reaches of the Yangtze River,the ecological space changes mainly occur in the Wuyi Mountains,Mufu Mountains,and Dabie Mountains,as well as the surrounding waters of Dongting Lake.The Yangtze River Delta’s changes were mainly observed in the eastern Dabie Mountains and Jianghuai Hills.展开更多
文摘Seeking water and earning their livelihoods is the natural selection of human beings.Like other rivers on the earth,the Yangtze River is the birthplace of human civilization and survival.As an ecosystem,the Yangtze River Basin is evolving under the influences of natural factors and human activities.Because of soil erosion,pollution and human activities,the imbalance of secondary environment is exacerbated and the ecological environment has become more vulnerable,so it is urgent to mitigate and prevent the ecological crisis.The practice has proved that implementation of engineering measures is an effective way to improve the ecological environment.The Three Gorges Project (TGP) has a flood control storage capacity of 22.15 billion m 3,effectively storing the flood water upstream of Yichang,and protects 15 million people and 1.5 million hm 2 farmland.Furthermore,the project can prevent or slow down the sedimentation and shrinkage of the lakes in the middle Yangtze River such as Dongting Lake;with an average annual power generation of about 90 billion kW· h,it can significantly reduce the emissions of harmful gas like CO 2.In general,the construction of TGP is conducive to the ecological and environmental protection in the Yangtze River Basin and China,even the world.
文摘The fuels that hardly pollute water body and atmospheric environment during burning are regarded as clean fuels. Liquefied Petroleum Gas （LPG）, Compressed Natural Gas （CNG） and Liquefied Natural Gas （LNG） are three representative clean fuels that are widely used in the shipping industry. From both ecological and economic point of view, LNG is treated as the best fuels in shipping industry by the ship-owners and Chinese government. In this paper, the wide applications of LNG-powered ships are analyzed from three aspects, including the global energy source structure, economic demands and the formulation of international conventions. Also, the functions of relevant domestic policies on how to accelerate LNG-powered ships widely used in inland waters of Yangtze river, China are summarized. At last, the reasons of the use of LNG-powered ships in inland waters of China in recent years under the impulsion of various factors are discussed in the end.
基金supported by the National Science Foundation of China(71373080)the fundamental research funds for the Central Universities(WN1322010)
文摘In this paper,we establish the evaluation index system of urban ecological environment from the perspective of urban ecological environment.We established two criteria level indicators and fourteen index layer program and calculate the level of each program index weight with the help of analytic hierarchy process.We take twenty-seven cities of Yangtze River Delta in 2013 and 2014 as an example and then analyze and rank them.The final results show that Shanghai,Suzhou,Hangzhou have relatively good ecological environment in the twenty-seven cities.
文摘Situated in the arid area in the inland of the Central Asia,the reaches of the Tarim River possesses unique natural conditions. Being one of the most concentrated Populus euphratica distributing areas,it is a comparatively big ecosystem.Due to the human effect during the recent 30 years,especially the lack of overall planning of exploitation and utilization of water resources and poor awareness of ecologic protection, resources of the whole reaches and its ecologic environment is deteriorating, which rouses the attention from home and abroad.The programme being carried out is based on protecting the ecologic environment of the reaches of the Tarim River. The task is to protect ecologic environment,improve and restore the existing natural vegetation in order to prevent land desertification.
文摘An attempt has been made in this paper to highlight some of environmental problems and suggest possible solutions for planning water resources development projects.
基金supported by the Chinese Fund for the Humanities and Social Sciences(15ZDB177).
文摘The protection of the Yangtze River Basin is a top priority in China,and the National People's Congress(NPC)Standing Committee has started to draft a new protection legislation specifically for the Yangtze River Basin.The Basin forms the epicenter of environmental,social,and economic life.Any efforts to protect the Basin must accommodate several competing interests from a multiplicity of interested parties and stakeholders such as local governments,villages,and business enterprises.Current relevant institutions and organizations are unable to sufficiently ensure environmental protection and green development in the Basin.The NPC Standing Committee must thus adopt a more holistic approach when creating new protection legislations aimed at the Yangtze River Basin.
基金The Fundamental Research Funds for the Central Universities,China University of Geosciences(Wuhan),No.CUG2018123。
文摘Building the Yangtze River Economic Belt(YREB)is one of China’s three national development policies in the new era.The ecological environment of the Yangtze River Economic Belt must be protected not only for regional economic development but also for regional ecological security and ecological progress in this region.This paper takes the ecological space of the Yangtze River Economic Belt as the research object,based on land use data in 2010 and 2015,and uses the FLUS model to simulate and predict the ecological space of the research area in 2035.The variation of the research area’s ecological space area and its four sub-zones has remarkable stability under diverse situations.Both the production space priority scenarios(S1)and living space priority scenarios(S2)saw a fall in ecological space area,with the former experiencing the highest reduction(a total reduction of 25,212 km^(2)).Under the ecological space priority scenarios(S3)and comprehensive space optimization scenario(S4),the ecological space area increased,and the ecological space area expanded even more under the former scenario(a total growth of 23,648 km^(2)).In Yunnan-Guizhou,the ecological space is relatively stable,with minimal signs of change.In Sichuan-Chongqing,the Sichuan Basin,Zoige Grassland,and Longmen Mountains were significant regions of area changes in ecological space.In the middle reaches of the Yangtze River,the ecological space changes mainly occur in the Wuyi Mountains,Mufu Mountains,and Dabie Mountains,as well as the surrounding waters of Dongting Lake.The Yangtze River Delta’s changes were mainly observed in the eastern Dabie Mountains and Jianghuai Hills.
