期刊论文

Carrying load estimation and risk assessment of cultivated land contaminated by livestock and poultry breeding in Huizhou

中文

农业资源与环境学报

2095-6819

2021

38

02

191-197

10.13254/j.jare.2020.0312

国家重点研发计划项目（2016YFD0501410）； 广东省自然科学基金项目（2018A030310681）~~；

本校为第一机构

为评估惠州市畜禽粪污耕地承载负荷及风险状况,根据最新统计年鉴中惠州市畜禽养殖数据,结合第二次全国污染源普查畜禽饲养期产污系数及粪污综合利用率,估算了2018年惠州市畜禽粪污及主要污染物(COD、NH_3-N、TN、TP)的产排量,并基于各区(县)实际耕地面积对粪污、TN和TP的耕地承载负荷进行估算和风险评价。结果表明:2018年惠州市畜禽养殖粪污产生量1.51×10~6 t,排放量达4.44×10~5 t,各畜禽贡献占比排序为生猪(50.3%)>肉鸡(17.2%)>肉牛(14.3%)>蛋鸡(13.4%)>奶牛(4.8%);主要污染物产生量为2.61×10~8 kg,排放量为7.66×10~7 kg,其中畜牧大县博罗县排放量最大,占比42.9%;全市畜禽粪污、TN和TP的耕...

With the rapid development of the livestock and poultry breeding industry in Huizhou, Guangdong Province, improper utilization of livestock and poultry fecal sewage may pollute cultivated land and even affect the drinking water source in the Dongjiang basin through surface runoff. In order to assess the carrying loads and risks of livestock and poultry fecal sewage in the cultivated land of Huizhou, this study collected the latest statistical yearbook data of livestock and poultry breeding in Huizhou and the second national survey of pollution ...