湟水流域典型区农业面源污染特征解析及空间格局

S276; [目的]明确湟水流域农业面源污染排放的时空特征及污染贡献来源.[方法]采用排污系数法估算湟水流域典型区2010-2018年总氮(TN)、总磷(TP)、化学需氧量(COD)、氨态氮(NH3-N)的排放量和排放强度,运用时空分析及冷热点分析揭示不同类型农业面源污染的时空演变及空间格局.[结果]从时间上看,来自畜禽养殖和农村生活源的污染排放量呈上升趋势,来自种植业源的污染排放量呈下降趋势;从污染物排放类型来看,TN、COD、NH3-N排放量增加,TP排放量减少;从空间分布上看,污染排放强度在峡门桥和金滩断面区域较小,进入新宁桥后整体较高;排放负荷贡献率为畜禽养殖业＞农村生活＞种植业,其中...

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Published in	Guanʻgai paishui xuebao Vol. 42; no. 6; pp. 81 - 88
Main Authors	CHANG, Xiaomin, WANG, Shaoli, GUAN Xiaoyan, HUANG, Jiasheng, JIA Haifeng, YOU Lijun
Format	Journal Article
Language	Chinese English
Published	Xinxiang City Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage 01.06.2023 中国水利水电科学研究院,北京100038 国家节水灌溉北京工程技术研究中心,北京100048%青海省水利水电科学研究院有限公司,西宁810001
Subjects	Agricultural land Agricultural pollution Agricultural production Agriculture Ammonia Chemical oxygen demand Discharge coefficient Livestock Nitrogen Nonpoint source pollution Plant breeding Pollutants Pollution control Pollution prevention Pollution sources Poultry Research hot spots River basins Rivers Rural areas Spatial distribution Spatiotemporal data Temporal distribution agricultural non-point source pollution 冷热点分析 Huangshui River Basin 时空演变防控对策 prevention and control countermeasures 湟水流域农业面源污染 cold and hot spot analysis temporal and spatial evolution
Online Access	Get full text
ISSN	1672-3317
DOI	10.13522/j.cnki.ggps.2022468

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Abstract	S276; [目的]明确湟水流域农业面源污染排放的时空特征及污染贡献来源.[方法]采用排污系数法估算湟水流域典型区2010-2018年总氮(TN)、总磷(TP)、化学需氧量(COD)、氨态氮(NH3-N)的排放量和排放强度,运用时空分析及冷热点分析揭示不同类型农业面源污染的时空演变及空间格局.[结果]从时间上看,来自畜禽养殖和农村生活源的污染排放量呈上升趋势,来自种植业源的污染排放量呈下降趋势;从污染物排放类型来看,TN、COD、NH3-N排放量增加,TP排放量减少;从空间分布上看,污染排放强度在峡门桥和金滩断面区域较小,进入新宁桥后整体较高;排放负荷贡献率为畜禽养殖业＞农村生活＞种植业,其中COD为首要污染物.从冷热点分析来看,热点区主要分布在桥头桥、新宁大通桥、西钢桥、西宁城东区,冷点区主要分布在金滩及三其桥区域,污染物排放强度整体呈增加趋势,局部地区集聚程度减弱.[结论]湟水流域农业面源污染程度及主要污染来源具有显著差异,应重点关注畜禽养殖业造成的面源污染,尤其需重视COD的减排;在重点防控区域方面,应重点关注进入新宁桥断面后的区域.研究结果可为湟水流域农业面源污染治理提供理论依据.
AbstractList	S276; [目的]明确湟水流域农业面源污染排放的时空特征及污染贡献来源.[方法]采用排污系数法估算湟水流域典型区2010-2018年总氮(TN)、总磷(TP)、化学需氧量(COD)、氨态氮(NH3-N)的排放量和排放强度,运用时空分析及冷热点分析揭示不同类型农业面源污染的时空演变及空间格局.[结果]从时间上看,来自畜禽养殖和农村生活源的污染排放量呈上升趋势,来自种植业源的污染排放量呈下降趋势;从污染物排放类型来看,TN、COD、NH3-N排放量增加,TP排放量减少;从空间分布上看,污染排放强度在峡门桥和金滩断面区域较小,进入新宁桥后整体较高;排放负荷贡献率为畜禽养殖业＞农村生活＞种植业,其中COD为首要污染物.从冷热点分析来看,热点区主要分布在桥头桥、新宁大通桥、西钢桥、西宁城东区,冷点区主要分布在金滩及三其桥区域,污染物排放强度整体呈增加趋势,局部地区集聚程度减弱.[结论]湟水流域农业面源污染程度及主要污染来源具有显著差异,应重点关注畜禽养殖业造成的面源污染,尤其需重视COD的减排;在重点防控区域方面,应重点关注进入新宁桥断面后的区域.研究结果可为湟水流域农业面源污染治理提供理论依据.
Author	CHANG, Xiaomin YOU Lijun HUANG, Jiasheng JIA Haifeng WANG, Shaoli GUAN Xiaoyan
AuthorAffiliation	中国水利水电科学研究院,北京100038;国家节水灌溉北京工程技术研究中心,北京100048%青海省水利水电科学研究院有限公司,西宁810001
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Author_FL	WANG Shaoli YOU Lijun HUANG Jiasheng JIA Haifeng CHANG Xiaomin GUAN Xiaoyan
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SubjectTerms	Agricultural land Agricultural pollution Agricultural production Agriculture Ammonia Chemical oxygen demand Discharge coefficient Livestock Nitrogen Nonpoint source pollution Plant breeding Pollutants Pollution control Pollution prevention Pollution sources Poultry Research hot spots River basins Rivers Rural areas Spatial distribution Spatiotemporal data Temporal distribution
Title	湟水流域典型区农业面源污染特征解析及空间格局
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