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| Hotspot analysis and estimation of the main pollutants from livestock in China |
| Received:March 10, 2017 |
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| KeyWord:livestock numbers;hotspot analysis;discharge coefficient;livestock pollution |
| Author Name | Affiliation | E-mail | | WANG Jun-xia | China National Environmental Monitoring Centre, Beijing 100012, China | | | XU Fei | Tsinghua Holdings Human Settlements Environment Institute, Beijing 100083, China | | | LIU Rui-min | School of Environment, Beijing Normal University, Beijing 100875, China | | | DONG Guang-xia | China National Environmental Monitoring Centre, Beijing 100012, China | donggx@cnemc.cn |
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| Abstract: |
| Livestock and poultry pollution has been an increasingly important constituent of agricultural nonpoint source pollution.In order to better target the national-scale prevention of livestock pollution,hotspot analyses for total and respective livestock numbers in China for the years 1992,2002,and 2012 were conducted.Based on these analyses,the main livestock pollutants of the hot spot provinces were estimated using the discharge coefficient method.It was found that there were no cold spots of each type of livestock in all the provinces,showing that livestock and poultry breeding occurs throughout China.The provinces that produced the most swine were Sichuan,Shandong,and Hunan;for cattle,Sichuan,Shandong,and Henan;for sheep,Inner Mongolia and Qinghai,concentrated in Northwest China;and for poultry,Shandong and Guangdong.Generally,the provinces with large numbers of livestock and poultry were seriously polluted,and much larger amounts of livestock pollutants were discharged in areas with significantly concentrated distribution livestock.Sichuan,Henan,and Shandong are the main provinces that need to prevent and control livestock pollution urgently.Inner Mongolia and Xinjiang also need to pay more attention to pollution prevention,because they have high densities of sheep.This research is constructive for livestock pollution control in China. |
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