新疆农业面源污染与经济增长关系研究--基于环境库兹涅茨曲线

Research on Relationship between Agricultural Non-point Source Pollution and Economic Growth in Xinjiang:Based on Kuznets Curve

如何提高区域农业面源污染防治能力,减少追求经济快速增长而对农业环境带来的破坏,并进一步改善农业生产环境成为亟待解决的问题。该文运用输出系数法,以新疆棉、粮、畜等主要农产品为标准,加入农村生活面源污染,估算了新疆农业面源污染负荷排放量,并基于库兹涅茨曲线进一步实证分析了新疆种植业、畜牧业和农村生活与经济增长的关系。研究结果表明:(1)新疆农业面源污染总氮(TN)、总磷(TP)负荷排放量从大到小为:畜牧业>种植业>农村生活,畜牧业面源污染主要来自于牛和羊,种植业面源污染主要来自于小麦、玉米和棉花,农村生活面源污染主要来自于持续增长的农村人口;(2)新疆农业面源污染与经济增长之间的关系不仅是倒“U”型,还呈现出倒“N”型、“U”型和线型。

How to improve capability in preventing regional agricultural non-point source pollution,how to reduce the damage on agricultural environment caused by too fast economic growth and how to further improve agricultural production environment have became urgent issues.In this paper,the output coefficient method is used to estimate the discharge of agricultural non-point source pollution load in Xinjiang and its EKC characteristics are further analyzed,based on Kuznets Curve,so as to do empirical research on relationship between husbandry,planting,rural living and ecomonic growth.The results show that:(1)The total nitrogen(TN)and total phosphorus(TP)of agricultural non-point source pollution in Xinjiang are from big to small respectively:animal husbandry>planting industry>rural life;The non-point source pollution of animal husbandry mainly comes from cattle and sheep,the non-point source pollution of planting industry mainly comes from wheat,corn and cotton,and the non-point source pollution of rural life mainly comes from the growing rural population;(2)The relationship between agricultural non-point source pollution and economic growth in Xinjiang is not only an inverted“U”type,but also an inverted“N”type,“U”type and linear type.