| 马金宝,谭亚男,袁建伟,常晓敏.沂河流域临沂市农业面源污染定量估算及特征解析[J].中国水利水电科学研究院学报,2023,21(5):490-500 |
| 沂河流域临沂市农业面源污染定量估算及特征解析 |
| Quantitative estimation and characteristic analysis of agricultural non-point source pollution in Yihe River Basin of Linyi City |
| 投稿时间：2022-12-28 |
| DOI：10.13244/j.cnki.jiwhr.20220421 |
| 中文关键词: 沂河流域 临沂市 农业面源污染 排放负荷 时空特征 排放贡献 |
| 英文关键词:Yihe River Basin Linyi City agricultural non-point source pollution(ANPS) discharge loads spatiotemporal characteristics emission contribution |
| 基金项目:国家自然科学基金项目(52109073) |
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| 中文摘要: |
| 为厘清沂河流域上游临沂市农业面源污染排放时空特征及主要污染来源贡献，采用GIS与排污系数结合法定量估算研究区各类污染源中总氮(TN)、总磷(TP)、化学需氧量(COD)的排放量和排放强度。结果表明：农业面源污染物TN和TP排放量呈“先增后减”，COD排放量呈“先增加后平稳”的变化趋势，其中畜禽养殖业源为主要污染源，对TN、TP、COD的排放贡献率均高于80%，COD为首要污染物，对污染物总排放量的贡献率为41.09%。从空间分布来看，沂南、临沭、沂水、费县为污染物排放重度污染县，可考虑作为农业面源污染的优先控制区进行重点治理。建议研究区下一步重点加强畜禽养殖的排放治理，尤其是COD的减排，同时合理规划养殖规模，加强生态养殖和清洁养殖处理，对畜禽养殖污染进行有效控制。研究成果可为临沂市农业面源污染分区治理以及沂河流域农业面源污染防控提供科学依据。 |
| 英文摘要: |
| In order to clarify the Spatiotemporal characteristics of ANPS pollution emissions and the contributions of main pollution sources，this paper used the combined method of GIS and pollution emission coefficient to quantitatively estimate the emissions and intensity of total nitrogen(TN)，total phosphorus(TP)，chemical oxygen demand(COD)for the various pollution sources in the study area.The results show that the overall emission of TN and TP from ANPS pollutants are “increasing firstly and then decreasing”，and the emission of COD is “increasing firstly and then stabilizing”.The livestock and poultry breeding source is the main pollution source，and their contribution rates to the emissions of TN，TP and COD were higher than 80%.COD was the primary pollutant，and its contribution rate to the total emissions of pollutants was 41.09%.From the perspective of spatial distribution，Yinan，Linshu Yishui and Feixian County are heavily polluted areas of pollutant emission，which can be considered as priority control areas of ANPS pollution for key treatment.It is suggested that the study area should focus on strengthening the control of livestock and poultry breeding pollutants，especially the emission reduction of COD.At the same time，it is necessary to reasonably plan the breeding scale，strengthen ecological breeding and clean breeding treatment，and effectively control livestock and poultry breeding pollution.The research results can provide a scientific basis for the zonal control of agricultural cooperative non-point source pollution in Linyi City. |
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