摘要
通过Eviews软件建立模型,运用二阶段最小二乘法,以贵州省境内南盘江流域化肥投入与贵州省农村居民2006-2015年的人均收入为样本,研究了化肥3种主要污染元素氮、磷和溶解氧的投入对南盘江水资源的影响。结果表明,化肥投入与环境之间存在环境库兹涅茨曲线,政府和相关部门应该对化肥投入造成的面源污染做出控制。
The Eviews software was used to establish the model. By application of the least squares second-order method,and taking the fertilizer input of Nanpan River and the per capita income of rural residents from 2006 to 2015 in Guizhou province as sample, the effect of three major pollution elements including nitrogen, phosphorus, and dissolved oxygen input on the water resources in Nanpan river was evaluated. The results showed that environmental Kuznets curve existed between fertilizer input and environment. The government and related departments should control the environmental pollution of non-point source caused by fertilizer input.
出处
《湖北农业科学》
2017年第5期996-1000,F0003,共6页
Hubei Agricultural Sciences
关键词
环境库兹涅兹曲线
化肥投入
面源污染
贵州省南盘江流域
environmental Kuznets curve
fertilizer input
non-point source pollution
Nanpan River in Guizhou province
