新疆地区农业面源污染空间分异研究
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国家科技支撑计划项目“西北绿洲农牧区新农村建设关键技术集成与示范”(2008BAD96B09-08);高层次人才科研启动资金项目(RCSX200808)


Spatial Variation of Agricultural Non-point Pollution in Xinjiang Area
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    摘要:

    新疆维吾尔族自治区是我国重要的农业区之一。为满足农业面源污染控制的实际需要,在GIS支持下,以主要农业面源污染物分析为基础,对新疆地区农业面源污染进行了空间分异研究。结果表明,化肥投入密度超过400 kg/hm2的地区有20个,主要集中在塔里木河、玛纳斯河、伊犁河流域及新疆生产建设兵团;农药面源污染区域的分布与化肥面源污染分布基本相同,从农药投入密度来看,超过3 kg/hm2的地区有18个;畜牧粪尿排泄密度超过30 kg/hm2的地区有13个,畜牧养殖污染从程度上来说北疆地区明显要大于南疆地区;水土流失造成的污染中风蚀占89.32%,水蚀仅占10.68%。对新疆地区面源污染进行聚类分析表明,I类区域属于重污染区域,Ⅱ类区域属于农资类污染区,Ⅲ类区域属于畜牧污染型重污染区域,Ⅳ类地区为轻污染区域。

    Abstract:

    Xinjiang Uygur Autonomous Region is one of important farming areas in China.In order to control agricultural non-point pollution,the spatial distribution of nonpoint pollution from agriculture in Xinjiang area was studied based on the analysis o f main area source pollutants from agriculture and the help of GIS.Results showed t hat there were 20 areas with fertilizer use density larger than 400 kg/hm2,mainly concentrated in Tarim River,Manas River,Yili River basin and t he production and construct ion corps o f Xinjiang area.The spatial distribution of pesticide contaminated areas was basically the same with that of fertilizer contaminated areas.There were 18 areas with pesticide density exceeding 3 kg/hm2,13 areas with density of water drainage collection of animal husbandry larger than 30 kg/hm2.The degree of livestock farming pollution in North Xinjiang Autonomous Region was higher than in South Xinjiang Autonomous Region.As for the pollution of soil and water erosion,wind erosion pollution occupied 89.32%,and water erosion only occupied 10.68%.Cluster analysis of area source pollution of Xinjiang area indicated that region I was the heavily polluted areas,region was agriculture pollution areas,region was heavy pollution areas of animal husbandry,and region was light pollution areas.

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徐丽萍,杨其军,王玲,吕新.新疆地区农业面源污染空间分异研究[J].水土保持通报,2011,(4):151-153,158

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  • 收稿日期:2010-11-03
  • 最后修改日期:2010-12-14
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  • 在线发布日期: 2014-11-26
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