Analysis on Characteristics of Agricultural Non-Point Source Pollution Sources in Tianjin
With the rapid development of agriculture in Tianjin in recent years and effective control of point source pollution,the issue of agricultural non-point source pollution has become increasingly prominent.This study analyzed the source characteristics and development trend of agricultural non-point source pollution based on data from the second national pollution source census and historical agricultural data from 1992 to 2022 in Tianjin.The results indicate that livestock and poultry breeding is the primary source of agricultural non-point source pollution in Tianjin.Over the past 30 years,chemical inputs such as fertilizer,mulch film,straw,livestock and poultry breeding amount,livestock and poultry manure amount,and aquatic product output have shown an in-creasing trend overall,while pesticide use has decreased over the past decade.In view of the existing problems,the corresponding countermeasures and suggestions are put forward such as promoting the reduction of agricultur-al non-point source pollution sources,improving the comprehensive utilization level of agricultural waste re-sources,achieving the full coverage of the end treatment of agricultural non-point source pollution,and demon-strating and promoting the green planting and breeding cycle mode,in order to provide a reference for the treat-ment of agricultural non-point source pollution in Tianjin.
chemical fertilizerpesticidesagricultural non-point sourcelivestock and poultry breedingTianjin
NETL
NSTL
万方数据
