摘要
西藏作为国家生态安全屏障,其农业面源污染治理对我国生态环境保护具有重要意义。本研究基于利用单元调查法核算的2000-2016年西藏农业面源污染排放量数据,定量分析其与农业经济增长之间的EKC关系,并定性分析其驱动因素。研究表明:(1)西藏总氮排放量与农业经济增长之间的EKC曲线以及总磷排放量与农业经济增长之间的EKC曲线均为N形,即西藏农业面源污染排放量可能呈现"先上升——后下降——再次上升"的趋势。(2)西藏农业面源污染主要受到农业生产结构、农业技术进步、农村人口规模和农业面源污染防治政策等因素的影响,这4个因素分别对其产生正向、负向、正向和负向影响。西藏农业面源污染治理需要从3个方面着手:加强农业面源污染治理政策创设,实行以正面激励和奖励手段为主的区别性农业面源污染防治政策;制定西藏农业面源污染防治技术集成创新方案;提高西藏农牧民的环境保护意识。
As the national ecological security barrier, Tibetan agriculture non-point source pollution control and eco-environmental protection are of great strategic significance for the sustainable development of agriculture in China. Based on the agricultural non-point pollution source information calculation during 2000~2016 in Tibet, the EKC relationship between agricultural non-point pollution and agricultural economic growth and its driving factors were analyzed. The results indicated that total nitrogen(TN) and total phosphorus(TP) emissions in Tibet both had N shape relationship with agricultural economic growth, meaning a trend of first increase then decrease and then increase. The driving factors of agricultural non-point source pollution in Tibet mainly included four aspects: agricultural structure, agricultural technology progress, rural population scale and control of agricultural non-point source pollution policies,which had positive, negative, positive and negative impacts on it. In order to combat the harnessing battle of agricultural non-point source pollution in Tibet, it is necessary to strengthen the creation of agricultural non-point source pollution control policies, implement differentiated policies with positive incentives; formulate an integrated innovation scheme of agricultural non-point source pollution control technology; and improve the environmental protection awareness of farmers and herdsmen in Tibet.
引文
[1]周芳,金书秦,张惠.西藏农业面源TN,TP排放的空间差异与分布特征[J].中国农业资源与区划,2019,40(1):35-41.
[2]Grossman G M,KruegerA B.Environmental Impacts of ANoah American Free Trade Agreement[R].Woodrow WilsonSchool,Princeton,NT.1992.
[3]李海鹏,张俊飚.中国农业面源污染与经济发展关系的实证研究[J].长江流域资源与环境,2009,(6):585-590.
[4]周芳,金书秦,沈贵银.基于省级层面的中国农药使用环境库兹涅茨曲线研究[J].江苏农业科学,2017,45(13):260-263.
[5]石美玲.农业面源污染与经济增长的关系[J].江苏农业科学,2014,42(8):477-479.
[6]孙大元,杨祁云,张景欣等.广东省农业面源污染与农业经济发展的关系.中国人口·资源与环境,2016(S1):102-105.
[7]陈敏鹏,陈吉宁,赖斯芸.中国农业和农村污染的清单分析与空间特征识别[J].中国环境科学,2006,26(6):751-755.
[8]葛继红.江苏省农业面源污染及治理的经济学研究[M].北京:经济管理出版社.2015,38-39.
[9]赖斯芸,杜鹏飞,陈吉宁.基于单元分析的非点源污染调查评估方法[J].清华大学学报(自然科学版),2004,44(9):1184-1187.
[10]赖斯芸.非点源调查评估方法及其应用研究[D].清华大学硕士学位论文,2003,36-39.
[11]陈玉成,杨志敏,陈庆华等.基于“压力-响应-态势”的重庆市农业面源污染的源解析[J].中国农业科学,2008,41(8):2362-2369.
[12]梁流涛.农村生态环境时空特征及其演变规律研究[D].南京农业大学博士学位论文,2009,75-79.
[13]金书秦,周芳.中国农药使用与经济增长关系研究-基于环境库兹涅茨曲线的检验[J].济南大学学报(社会科学版),2016,26(6):87-92.
[14]周芳,张敏,金书秦.基于SWOT分析的西藏农业绿色发展对策研究[J].经济研究参考,2018,(33):52-59.