Non-point source pollution has become a hot issue on aquatic ecological environment at home and abroad. The research analyzed the challenges confronted by Xi River and proposed to construct agricultural ecological sou...Non-point source pollution has become a hot issue on aquatic ecological environment at home and abroad. The research analyzed the challenges confronted by Xi River and proposed to construct agricultural ecological source in middle and upper reaches of the Xi River from the perspectives of scientific layout, legal construction, routine monitoring, technology integration, and coordination system in order to promote sustainable development of eco-environment in Xi River.展开更多
With the current tightening of environmental regulations of waste water treatment, there is a need for the enhancement of the treatment efficiency. This can be done through process changes, or by adding a finishing tr...With the current tightening of environmental regulations of waste water treatment, there is a need for the enhancement of the treatment efficiency. This can be done through process changes, or by adding a finishing treatment after the process, like flotation or filtration. Wetlands are also one possibility for the finishing treatment of waste water. In Finland Wetlands have been used as a polishing treatment for municipal wastewater for approx. 20 years. Most of these are natural wetlands. Using wetlands after efficient wastewater treatment is an economical way of producing high quality treated water and cutting down the pollution load of water bodies. Wetlands have also been used in the control of diffuse pollution in agriculture and forestry.展开更多
Agricultural production is considered one of the most important sources of water quality deterioration in the Taihu Lake Basin,China.Crop farming,livestock&poultry breeding and aquaculture are primary agricultural...Agricultural production is considered one of the most important sources of water quality deterioration in the Taihu Lake Basin,China.Crop farming,livestock&poultry breeding and aquaculture are primary agricultural non-point sources and their impacts on the water environment are,in most cases,evaluated separately.Therefore,it is a challenge for current research to consider all of the different agricultural non-point sources as a whole and assess their combined influence on the water environment.The purpose of this paper is to evaluate the conjoint impact that agricultural non-point sources such as crop farming,livestock&poultry breeding and aquaculture have had on the local water environment in the Taihu Lake Basin by taking Huzhou City of Zhejiang Province as a case study.To achieve this,a new,innovative approach named the“Waste Absorption Footprint”(WAF)is applied.The results show that nitrogen and phosphorus pollution generated by agricultural production are more serious than that of organic substances,while aquaculture and crop farming are more critical pollution sources compared with livestock and poultry breeding,and so they should be the focus of environmental management and pollution control initiatives.There is a regional discrepancy in the spatial distribution of agricultural non-point source pollution across counties and districts,which provides information for determining the key regions for the treatment of agricultural pollution.This study demonstrates that the WAF method can make a comprehensive assessment of the influence of agricultural production on the water environment and provide references for the control and management of agricultural non-point source pollution,which is of great importance for management of the water environment.展开更多
基金Supported by Guangxi Agricultural Key Science & Technology Program(201528)Nanning Science Research and Technology Development Planning Program(20152054-13)+2 种基金Guangxi Science Research and Technology Development Planning Program(15104001-22)Guangxi Academy of Agricultural Sciences S&T Development Foundation(TF06)Xixiangtang District Science Research and Technology Development Planning Program(2015312)~~
文摘Non-point source pollution has become a hot issue on aquatic ecological environment at home and abroad. The research analyzed the challenges confronted by Xi River and proposed to construct agricultural ecological source in middle and upper reaches of the Xi River from the perspectives of scientific layout, legal construction, routine monitoring, technology integration, and coordination system in order to promote sustainable development of eco-environment in Xi River.
文摘With the current tightening of environmental regulations of waste water treatment, there is a need for the enhancement of the treatment efficiency. This can be done through process changes, or by adding a finishing treatment after the process, like flotation or filtration. Wetlands are also one possibility for the finishing treatment of waste water. In Finland Wetlands have been used as a polishing treatment for municipal wastewater for approx. 20 years. Most of these are natural wetlands. Using wetlands after efficient wastewater treatment is an economical way of producing high quality treated water and cutting down the pollution load of water bodies. Wetlands have also been used in the control of diffuse pollution in agriculture and forestry.
基金The National Natural Science Foundation of China(41861022,41961008,41801204)The Science and Technology Project in Jiangxi Province Department of Education(GJJ180903)The Consulting Research Project of Chinese Academy of Engineering(2021-XBZD-8)。
文摘Agricultural production is considered one of the most important sources of water quality deterioration in the Taihu Lake Basin,China.Crop farming,livestock&poultry breeding and aquaculture are primary agricultural non-point sources and their impacts on the water environment are,in most cases,evaluated separately.Therefore,it is a challenge for current research to consider all of the different agricultural non-point sources as a whole and assess their combined influence on the water environment.The purpose of this paper is to evaluate the conjoint impact that agricultural non-point sources such as crop farming,livestock&poultry breeding and aquaculture have had on the local water environment in the Taihu Lake Basin by taking Huzhou City of Zhejiang Province as a case study.To achieve this,a new,innovative approach named the“Waste Absorption Footprint”(WAF)is applied.The results show that nitrogen and phosphorus pollution generated by agricultural production are more serious than that of organic substances,while aquaculture and crop farming are more critical pollution sources compared with livestock and poultry breeding,and so they should be the focus of environmental management and pollution control initiatives.There is a regional discrepancy in the spatial distribution of agricultural non-point source pollution across counties and districts,which provides information for determining the key regions for the treatment of agricultural pollution.This study demonstrates that the WAF method can make a comprehensive assessment of the influence of agricultural production on the water environment and provide references for the control and management of agricultural non-point source pollution,which is of great importance for management of the water environment.
