农业现代化研究2017，Vol.38Issue(2)：291-297,7.DOI:10.13872/j.1000-0275.2017.0011
洞庭湖生态经济区养猪业污染物排放时空格局分析
Spatio-temporal patterns of pollutant loads from the pig husbandry in the Dongting Lake eco-economic zone
摘要
Abstract
Study on the spatio-temporal pattern is of importance on the comprehensive pollution control and sustainable development for animal husbandry. In this paper, the Dongting Lake eco-economic zone (DLEZ) in Hunan Province was selected as the study area. The inter-annual dynamics and spatial patterns of pollutants (COD, TN and TP) from the pig husbandry were studied. To ifnd out the cause of the pollution, the methods of pollutant discharge coefifcient and ArcGIS spatio-temporal analysis were applied. The primary data of the pig population were collected from the local Agricultural Statistics Yearbooks from 2000 to 2014. Results showed that the pig population and pollutant loads generally showed an increase-decrease-increase trend during the last 15 years and peaked in 2007. The pig population increased from 14.7 million in 2000 to 20.1 million in 2014. The total loads of COD, TN, and TP increased from 112.99×104, 11.75×104, and 1.10×104 t/a in 2000 to 154.56×104, 16.07×104, and 1.51×104 t/a in 2014, respectively. In terms of spatial pattern, the areas with the highest pollutant loads distributed in Changde in the western DLEZ and Miluo and Wangcheng in the southeastern DLEZ. Furthermore, these areas expanded year by year. The spatial pattern of pig husbandry in the DLEZ was closely related to the local population density, production habit, and policy and market directions. Therefore, promoting the healthy pig husbandry and encouraging ecological cycling agriculture by polices are the key approaches to control the pollution of pig husbandry in the DLEZ in Hunan Province.关键词
养猪业/养猪污染物/排放负荷/时空格局/洞庭湖生态经济区Key words
pig husbandry/swine pollutant/emission load/spatio-temporal pattern/Dongting Lake eco-economic zone分类
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陈希,周脚根,李希,李裕元,邹冬生,张满意,吴金水..洞庭湖生态经济区养猪业污染物排放时空格局分析[J].农业现代化研究,2017,38(2):291-297,7.基金项目
水利部公益性行业科研专项经费项目(201501055) （201501055）
国家科技支撑计划项目(2014BAD14B02) （2014BAD14B02）
湖南省科技计划项目(2015NK3055).Public Welfare Industry Research Projects of the Ministry of Water Resources (201501055) （2015NK3055）
National Key Technology R&D Program (2014BAD14B02) （2014BAD14B02）
Science and technology project of Hunan province (2015NK3055). （2015NK3055）
