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当前位置: 首页 > 文章 > 湖南省农业农村面源污染负荷分布特征 云南农业大学学报(自然科学) 2015,30 (1) 125-132
Position: Home > Articles > The Distribution of Agricultural Non-point Source Pollution in Hunan Rural Area Journal of Yunnan Agricultural University(Natural Science) 2015,30 (1) 125-132

湖南省农业农村面源污染负荷分布特征

作  者：
张吉香;万大娟;苏青
单  位：
湖南师范大学资源与环境科学学院
关键词：
农业面源污染;CODCr;TN;TP
摘  要：
为揭示湖南省农业农村面源污染负荷分布特征,本文采用清单分析法对湖南省14个市州农村地区的化学需氧量(CODCr),总氮(TN)和总磷(TP)产生量和产生强度进行核算,分析其时空分布特征及主要成因。结果表明:湖南省农村环境中CODCr,TN和TP产生量从2002年的3 563.34万t,188.46万t和35.96万t增加到2011年的4 361.13万t,216.58万t和43.21万t,产生强度从2002年的1 688.76 kg/hm2,89.32 kg/hm2和17.04 kg/hm2增加到2011年的2 066.86 kg/hm2,102.64 kg/hm2和20.48 kg/hm2;常德、邵阳、衡阳和永州为湖南省农业农村面源污染的主要高强区;在农业生产过程中,畜禽养殖业的发展和化肥的施用是导致湖南省农业农村面源污染的主要原因,生活污水对农业农村面源污染贡献较小。
译  名：
The Distribution of Agricultural Non-point Source Pollution in Hunan Rural Area
作  者：
ZHANG Jixiang;WAN Dajuan;SU Qing;School of Resources and Environment Science,Hunan Normal University;
关键词：
agricultural non-point source pollution;;CODCr;;TN;;TP
摘  要：
In order to reveal the distribution of agricultural non-point source pollution in Hunan rural area,the producing amount and producing intensity of chemical oxygen demand( CODCr),total nitrogen( TN) and total phosphorus( TP) of 14 pastoral prefectures in Hunan province were calculated by inventory analysis approach,and the spatial-temporal distribution and main causes were analyzed. The results showed that the producing amount of CODCr,TN and TP in Hunan rural environment increased from 3 563. 34 × 104,188. 46 × 104 and 35. 96 × 104 tons to 4 361. 13 × 104,216. 58 × 104and43. 21 × 104 tons from year 2002 to 2011. The producing intensity of CODCrTN and TP increased from1 688. 76,89. 32 and 17. 04 kg / hm2 to 2066. 86,102. 64 and 20. 48 kg / hm2 from year 2002 to 2011.Agricultural non-point source pollution spots with the highest producing intensity in Hunan rural area distributed in Changde,Shaoyang,Hengyang and Yongzhou. In the process of agricultural production,the development of livestock and poultry breeding industry and fertilizer application were main reasons that led to the generation of agricultural non-point source pollution in Hunan rural settlement,the contribution of domestic sewage was relatively low.

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