The Analysis of Area-Source Pollution Characteristics and Influencing Factors for Scale Livestock and Poultry Farming

With development of scale livestock and poultry farming industry in China,region environment pressure was increased due to the scale and intensification of livestock and poultry farming,in which produced pollution substantially exceeded the allowable maximum load on local farmland so that the area-source pollution was caused because of erosion.The formation process of scale livestock and poultry farming was studied to analyze the issues of pollution producing and reducing,area-source embodying after agriculture utilization and so on.Thereafter,the characteristics of area-source pollution for scale livestock and poultry farming were concluded and summarized.At the same time,from the aspects of farming methods,farming scales,farming techniques,farming time,pollution control methods,resource utilization methods,etc.,the influencing factors of area-source pollution for scale livestock and poultry farming were analyzed as well.