农业面源污染评价研究

【研究目的】本文目的在于使用相对统一的指标体系来比较不同区市氮肥、磷肥以及禽畜养殖的农业面源污染负荷。【方法】利用2000-2006年青岛农业化肥使用、禽畜养殖、耕地面积等统计数据，【结果】建立了使用统计资料评价青岛地区氮磷和禽畜粪便面源污染的指数及其污染等级划分的方法。【结论】研究表明氮肥流失对农田环境的影响：平度、黄岛、崂山和市区处于四级水平（严重威胁），城阳和胶州处于三级水平（构成威胁）。磷肥流失对农田环境的影响：黄岛处于四级水平（严重威胁），胶州处于三级水平（构成威胁）。禽畜养殖对农田环境的影响：莱西、胶州、胶南、崂山处于四级水平（严重威胁），即墨和平度处于三级水平（构成威胁）。

Agricultural Non-point Source Pollution Investigation and Assessment

Data of use of agrochemical, livestock and poultry raising and cultivated area during 2000-2006 in Qingdao were used to establish the index system for evaluation of nitrogen and phosphate fertilizer and livestock and poultry manure pollution load. The aim was to compare the spatial different of nitrogen and phosphate fertilizer and livestock and poultry manure pollution load with the relatively uniform index system. The result indicates the influence of nitrogenous fertilizer outflow to the farmland environment： Pingdu, Huang Dao, Laoshan and the urban district were in level four （threaten seriously）, and Chengyang and Jiaozhou were in the level three. The influence of Phosphate fertilizer outflow to farmland environment： Huangdao was in level four （threaten seriously）, and Jiaozhou was in the level three. Livestock and poultry manure pollution influence farmland environment： Laixi, Jiaozhou, Jiaona and Laoshan were in level four （threaten seriously）, and Jimo and Pingdu were in level three.