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机构地区:[1]中南民族大学公共管理学院,湖北武汉430074 [2]华中农业大学经济管理学院,湖北武汉430070
出 处:《长江流域资源与环境》2009年第6期585-590,共6页Resources and Environment in the Yangtze Basin
基 金:国家社会科学基金(07BJY043);国家自然科学基金(70573124);湖北省社科基金(2009075)
摘 要:把握现阶段我国经济发展过程中农业面源污染压力的演变规律,是制定农业可持续发展政策的基本依据。运用1998~2006年我国31个省(市、自治区)面板数据模型对经济发展与农业面源污染的环境库兹涅茨曲线(EKC)关系进行实证研究。选取各省化肥投入密度、农药投入密度、畜禽粪尿排泄物密度作为度量农业面污染源排放量的指标,选取各省人均国民生产总值作为经济发展衡量指标。研究结果表明,我国农业面源污染源排放量与经济增长总体上具有显著的倒“U”型曲线关系,三类污染源与人均GDP均处于曲线上升阶段,自发到达农业面源污染减排拐点还需较长时间。政府应强化农业环境政策的干预力度,加大对农业面源污染的治理力度。Mastering alteration tendency of agricultural non-point source pollution and their impacts on China's economic development at this stage is the base to make sustainable agricultural development policy. This paper studied relationships of Environmental Kuznets Curve (EKC) between economic development and agricultural non-point source pollution by using panel datum model including 31 provinces in China from 1998 to 2006. We selected input densities of fertilizer and pesticides, livestock and poultry excrement density as a measurement of agricultural pollution emissions, and the per capita GDP was selected as a measurement of economic development. The result showed that an inverse"U"-type relationship appeared between China's agricultural non-point sources pollution and economic growth. Three types of sources of pollution and per capita GDP are increasing at all studied stages and it needs more time to reach the "Turning Point". The government should strengthen the agricultural environmental policy, and intensify the agricultural non-point source pollution control.
关 键 词:农业面源污染 经济发展 环境库兹涅茨曲线(EKC) 实证研究
分 类 号:X592[环境科学与工程—环境工程] X196
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