黑龙江垦区农业生产与面源污染的脱钩分析与调控模拟

发布时间：2018-01-30 02:14

本文关键词： 绿色发展农业生产面源污染化肥与农药脱钩分析 SD模型　出处：《经济地理》2017年06期 　论文类型：期刊论文

【摘要】：农业面源污染已成为我国水体污染的主要来源。作为国家重要的商品粮基地和绿色食品生产基地,黑龙江垦区在获得粮食生产"十二"连增的同时,农业面源污染问题也不容忽视。农业生产与面源污染的脱钩分析结果表明,2001—2012年,黑龙江垦区粮食生产与施用化肥造成的面源污染之间多次出现扩张性耦合关系,粮食增产对化肥的依赖仍很大;粮食生产与源于农药的面源污染之间关系复杂,弱脱钩类型居多,也存在强脱钩与强耦合类型;畜牧业生产与其面源污染之间以弱脱钩类型居多。以宝泉岭分局为例、应用SD模型的模拟结果表明,到2020年,牲畜养殖造成的面源污染下降幅度最大,其次为化肥施用造成的面源污染,农药施用造成的面源污染下降空间最小。
[Abstract]:Agricultural non-point source pollution has become the main source of water pollution in China. As an important commodity grain base and green food production base, Heilongjiang Reclamation area has been increasing grain production "12" at the same time. The problem of agricultural non-point source pollution should not be ignored. The results of decoupling analysis of agricultural production and non-point source pollution show that the year 2001-2012. The coupling relationship between grain production and non-point source pollution caused by chemical fertilizer application in Heilongjiang Reclamation area appeared many times, and the increase of grain yield was still heavily dependent on chemical fertilizer. The relationship between grain production and non-point source pollution from pesticide is complex, the weak decoupling type is the most, and there is strong decoupling and strong coupling type. The weak decoupling type between animal husbandry production and its non-point source pollution is the most. Taking Baoquanling Branch as an example, the simulation results of SD model show that by 2020, the decline of non-point source pollution caused by livestock breeding is the largest. The next is the non-point source pollution caused by chemical fertilizer application, and the decrease space of non-point source pollution caused by pesticide application is the least.
【作者单位】：东北师范大学地理科学学院;吉林大学地球科学学院;
【基金】：国家自然科学基金项目(41271555;41571115)
【分类号】：F327;X71
【正文快照】： 随着粮食生产“十二”连增目标的实现,我国已成为世界上化肥施用量最多、施用强度最高的国家,与此同时,居民膳食结构变化、肉禽蛋奶需求刺激下,我国的畜禽养殖量也进入世界前列。粮食生产中化肥和农药的淋溶、牲畜养殖的排泄物等农业面源污染不仅造成水质恶化,也对粮食安全和

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