桂林理工大学学报2023，Vol.43Issue(4)：685-694,10.DOI:10.3969/j.issn.1674-9057.2023.04.019
南流江流域氨氮和总磷的污染源排放特征及水质管控成效分析
Characteristics of pollution source discharge for ammonia nitrogen and total phosphorus and analysis of effectiveness of water quality control in Nanliujiang River basin
摘要
Abstract
The water quality of Nanliujiang River basin,which is an important river entering the sea in the south of Guangxi,has a very important impact on the ecological environment around the surrounding areas of rivers and even the entire Beibu Gulf.Based on measured data,this study analyzed the pollution characteristics that affect the spatio-temporal distribution of the main water quality indicators(i.e.,ammonia nitrogen and total phosphorus)in the Nanliujiang River basin.Statistical analysis shows that the total phosphorus is the limiting indicator leading to unqualified water quality,and the primary pollution source is the pollution of livestock and poultry breeding.Meanwhile,the pollution load of pollutants from livestock and poultry breeding sources in Bobai County was much higher than that in other administrative regions.The results of correlation analysis be-tween livestock and poultry production and tributary water quality show that the livestock and poultry activities in Bobai County directly affect the concentration of ammonia nitrogen and total phosphorus in the tributaries of the Nanliujiang River basin.And in addition,the impact of free-range farming activities was greater than that of large-scale farming activities.After the prevention and control of livestock breeding pollution has been promo-ted,the water quality of Nanliujiang River basin has obviously improved.At the same time,the key areas that need to be focused on and strenghthened in the future are in Bobai County which is a key breeding area in Nan-liujiang River basin,with the key tributaries including Xiaobai River,Wudou River,Shuiming River,Yashan River,Zhoucun River,Heshui River,Chunshi River,Dongping River,etc.关键词
畜禽养殖/氨氮/总磷/污染源/水质管控/南流江流域Key words
livestock farming/ammonia nitrogen/total phosphorus/pollution sources/water quality control/Nanliujiang River basin分类
资源环境引用本文复制引用
李昆明,蓝月存,汝旋,张倩,张漓杉,钟山,莫德清..南流江流域氨氮和总磷的污染源排放特征及水质管控成效分析[J].桂林理工大学学报,2023,43(4):685-694,10.基金项目
广西科技基地和人才专项(桂科AD19259005) （桂科AD19259005）
桂林市科技重大专项(20190203-2) （20190203-2）
