| Empirical study on Environmental Kuznets Curve of non-point source pollution——A case study of agricultural input and agricultural waste' s output in Shaanxi Province |
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| DOI：10.7606/j.issn.1000-7601.2010.03.35 |
| Key Words: Environmental Kuznets Curve empirical study agricultural input agricultural waste |
| Author Name | Affiliation | | CHEN Yong | Collge of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
The Research Censer for Recycling Agricultural Engineering Technology of Shannxi Province，Yangling, Shaanxi 712100, China | | FENG Yongzhong | Collge of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
The Research Censer for Recycling Agricultural Engineering Technology of Shannxi Province，Yangling, Shaanxi 712100, China | | YANG Gaihe | Collge of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
The Research Censer for Recycling Agricultural Engineering Technology of Shannxi Province，Yangling, Shaanxi 712100, China |
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| Abstract: |
| 9 time series data indicators of agricultural non-point source pollution in Shaanxi Province were chosen, which included total input density of ferilizer , input density of N fertilizer, input density of P fertilizer, input density of K fertilizer, input density of compound fertilizer, input density of agricultural film, input density of pesticide, load of livestock and poultry's manure & urine, and load of crop residues. Meanwhile，Environmental Kuznets Curve model (EKC) was built to examine the relationship between the 9 indicators and the growth of economy in Shaanxi. The outputs
of livestock and poultry's manure & urine were computed by the method of discharging coefficient, and the outputs of
crop residues were computed by harvest cofficient. Results: The per hectare loads of total fertilizer, N fertilizer, P fer-
tilizer, K fertilizer, compounded fertilizer and the manure & uine exhibited inverted-U relations with per capita GDP. While per hectare loads of agricultural film, pesticide and crop residues exhibited linear relations with per capita GDP.
Conclusion:With the growth of economy, the input of fertilizer and output of manure & urine will reduce, but the con-
sumption of agricultural flm and pesticide and the outputs of crop residues will increase . The govemment should take effective measures to prevent the occurrence of agricultural non-point source pollution ahead of time. |
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