| Economic loss caused by non point source pollution——A case study of Ningxia Yellow River Water Irrigation District |
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| DOI：10.7606/j.issn.1000-7601.2011.01.44 |
| Key Words: load of pollution economic value assessment Ningxia Yellow River Water Irrigation District |
| Author Name | Affiliation | | YANG Yinlu | College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100 | | FENG Yongzhong | College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100
The Research Center for Recycling Agricultural Engineering Technology of Shaanxi Province, Yangling, Shaanxi 712100 | | YANG Shiqi | Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China | | CAO Yanchun | College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100 | | LIU Qiang | College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100 | | YANG Gaihe | College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100
The Research Center for Recycling Agricultural Engineering Technology of Shaanxi Province, Yangling, Shaanxi 712100 |
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| Abstract: |
| Non-point source pollution have become more and more serious and brought enormous danger to water environment in Ningxia Yellow River Water Irrigation District, so it has important significance for ecological security to estimate the economic value of losses of pollution load in this area. In this paper, according to the JOHNES export coefficient method, calculation is made of non-point source
pollution load in Ningxia Yellow River Water Irrigation District, and the methoddology of enxironmental economics is used to reckon quantitatively economic loss caused by agricultural non-point source pollution. The results showed that the livestock breeding pollution contributed 41.27% to the pollution load of the area, and 37.25% to the TN and 4.03% to the TP pollution load of the area. The planting was the second and the rural domestic waste was the lowest proportion in non-point source pollution load, which was 34.54% and 24.2% to the pollution load of the area. The economic loss caused by the regional non-point source pollution was calculated at about 548.741 million RMB in total, of which about 40.97% was coutributed by livestock breeding pollution, while the planting and the rural areaa domestic waste respectively 35.6% and 23.4% to the all economic loss. This results illuminate that only the control of livestock breeding pollution can reduce economic loss caused by agricultural ono-point source pollution in Ningxia Yellow River Water Irrigation District. |
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