| 陈勇,冯永忠,杨改河.农业非点源污染源的环境库兹涅茨曲线实证研究——基于陕西省农业投入和废弃物排放的研究[J].干旱地区农业研究,2010,28(3):191~198 |
| 农业非点源污染源的环境库兹涅茨曲线实证研究——基于陕西省农业投入和废弃物排放的研究 |
| 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 |
| 中文关键词: 环境库兹涅茨曲线 实证研究 农业投入 固体废弃物 |
| 英文关键词:Environmental Kuznets Curve empirical study agricultural input agricultural waste |
| 基金项目:科技部“十一五”国家科技支撑项目“农田污染物源头控制关键技术研究”(2006BAD17B0-01)； 国家水体污染控制与治理科技重大专项“黄河上游灌区农田退水污染控制与湿地生态修复关键技术研究与示范课题”(2008ZX07212-004-01) |
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| 中文摘要: |
| 选取了19922008年陕西省总化肥投入密度、N肥投入密度、P肥投入密度、K肥投入密度、复合肥投入密度、农膜投入密度、农药投入密度、禽畜粪尿负荷和农作物秸秆负荷9个污染指标的时序数据,并建立环境库兹涅茨曲线模型,分别验证这9个指标与全省经济增长的环境库兹涅茨曲线关系,并利用EVIEWS 5.0对参数进行估计。其中禽畜粪尿的排放通过排污系数法测算,农作物秸秆产量通过农作物经济系数测算。结果表明,化肥总量投入密度、氮肥投入密度、磷肥投入密度、钾肥投入密度、复合肥投入密度和禽畜粪尿负荷与全省人均GDP成倒“U”形EKC曲线关系,而农膜投入密度、农药投入密度和农作物秸秆负荷与全省人均GDP呈现线性增长的关系。结论:陕西省化肥投入和禽畜粪尿排放随着经济发展有减小的趋势;而农膜投入、农药投入和作物秸秆排放随着经济增长有进一步增加的趋势,政府应该采取有效措施提前预防农业非点源污染的发生。 |
| 英文摘要: |
| 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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