基于GIS的珊溪库区畜禽废弃物污染风险评价与防治对策

以珊溪库区的文成段为研究区域，采用野外样方调查统计和GIS相结合的方法，研究畜禽废弃物排放量、农用地畜禽养分负荷量与畜禽废弃物风险评价的相关性。结果表明：文成县约80%以上的农用地存在畜禽废弃物污染的风险，污染面积广，程度严重。生猪的污染物排放是文成县生态环境恶化的主要原因。建议加强监管，合理控制生猪养殖规模，加快畜牧产业的转型升级，走可持续的生态发展之路。

The risk evaluation and control countermeasures of livestock waste pollution in Shanxi reservoir area based on GIS

The discharge amount of livestock waste， livestock nutrient load of agricultural land and the risk assessment of livestock and poultry waste in Shanxi reservoir area in Wencheng County were investigated by field investigation and GIS combined with vector processing method. The results showed that the farmlands of Wencheng County were widely and seriously polluted by livestock waste， and more than 80% of farmlands were threatened. Livestock waste of pig breeding was the main sources of pollution. In future， breeding scales of pig should be controlled reasonably， the transformation of the animal husbandry should be accelerated， and the realization of ecological sustainable development should be promoted.