Spatial distribution of livestock & poultry farming and its pollutants in Poyang Lake watershed

Abstract

With the rapid development of livestock and poultry farming, the pollution from livestock and poultry farming has become one of the important sources of countryside non-point source pollution in Poyang Lake watershed, and it also brings about serious problems of water environmental pollution. Based on the census data of livestock and poultry farming in Jiangxi province which are the part of the first national pollution source census in 2007, the article analyzes the spatial distribution feature of livestock and poultry farming in Poyang Lake watershed, using pollutant generation coefficient and discharge coefficient to calculate the pollutant generation and discharge amount in the area of Poyang Lake and its five branches watershed such as Ganjiang river, Fuhe rive, Xinjiang river, Raohe river and Xiuhe river. The results indicate that pig breeding pollution source is the main part of the pollution source of livestock and poultry farming in Poyang Lake watershed, and especially Ganjiang watershed is the most prominent. The producing amount and disposing amount of pollutants brought by pig breeding both are the main source of livestock breeding pollutants of all watersheds. The article explores the environment al problems of livestock and poultry farming in the Poyang Lake watershed, and puts forward corresponding resolving measures in order to supplies scientific accordance and theoretical guidance for the sustainable development of livestock and poultry farming, countryside non-point pollution control in Poyang Lake watershed.