黄河三角洲农业面源磷污染时空分布研究

The Spatial and Temporal Distributions of Agricultural Non-point Source Phosphorus Pollutions in the Yellow River Delta Area

搜集黄河三角洲地区农业面源磷污染的相关统计数据,研究了2011~2017年黄河三角洲农业面源磷污染的时空分布规律。结果表明,黄河三角洲的农业面源磷污染总量从2011年的5.03万吨变为2017年的5.07万吨,7年平均为5.06万吨,其中最大值为2016年的5.44万吨,最小值为2014年的4.63万吨。农业面源磷污染的来源组成中化肥、畜禽粪便、生活污水所占比重分别从2011年的85.07%、11.92%、3.01%变为2017年的93.53%、3.54%、2.93%。2017年惠民县、广饶县、邹平市的面源磷污染总量与单位面积面源磷污染都分别居第一至第三位。滨州市、东营市的7年平均面源磷污染负荷分别为2.85万吨、2.21万吨。

The statistics of agricultural non-point source phosphorus pollutions(ANPPS) in the Yellow River delta area were collected and the spatial and temporal distributions of ANPPS in the Yellow River delta from 2011 to 2017 were studied. The results showed that the ANPPS load of the Yellow River delta area increased from 50300 tons in 2011 to 50700 tons in 2017. The proportion of fertilizer, livestock and poultry manure and domestic sewage in the source of ANPPS changed from 86.64 %, 10.39 % and 2.96 % in 2011 to 91.9 %, 5.1 % and 3 % in 2017, respectively. The amounts of ANPPS in Huimin County, Guangrao County and Zouping City were the three biggest amounts of ANPPS in the Yellow River delta area. The 7-year average ANPPS load in Binzhou and Dongying City were 28500 tons and 22100 tons respectively.