四川环境2025，Vol.44Issue(2)：54-60,7.DOI:10.14034/j.cnki.schj.2025.02.007
天福庙水库底泥营养盐污染空间分布特征及资源化利用分析
Analysis on Spatial Distribution Characteristics and Resource Utilization of Nutrient Salt Pollution in Sediment of Tianfumiao Reservoir
摘要
Abstract
To provide fundamental data for learning current distribution status of sediment pollution of the Phase Ⅱ dredging project in the Tianfumiao Reservoir,sediment and water samples were collected in 2023 and the spatial distribution characteristics of water quality and sediment nutrient pollution were analyzed,and the sediment pollution characteristics were analyzed with the organic pollution and nutrient pollution assessment method.The results showed that:(1)The water quality parameters were ranked as follows head＞middle＞tail.The contents of nitrogen and phosphorus in the head of the reservoir were significantly greater than those in previous years,indicating the water pollution was aggravated.(2)According to the horizontal distribution,the distribution of sediment nutrients followed the same trend.Vertically,the concentrations of carbon,nitrogen,and phosphorus decreased and then increased with depth.(3)Organic and nutrient pollution assessments revealed that the reservoir head was a region with severe nitrogen,phosphorus,and organic pollution,while the middle and tail areas exhibit light to moderate pollution.Compared to other water bodies,the Tianfumiao Reservoir sediment had moderate nitrogen levels,higher phosphorus content,and significantly higher carbon content.(4)The treated sediment of the Tianfumiao Reservoir can be used as farmland,forest land and green land for resource utilization.Therefore,the Phase Ⅱ dredging project is essential,and dredging can be carried out based on the specific distribution of the sediment.The research results of this paper can provide a basis for the improvement of water quality and ecological dredging of the Tianfumiao Reservoir,and provide data support for water environment management in the Huangbai River basin.关键词
天福庙水库/底泥营养盐/空间分布/污染特征/资源化利用Key words
Tianfumiao reservoir/nutrient salt in sediment/spatial distribution/pollution characteristics/resource utilization分类
资源环境引用本文复制引用
张春雷,杨露,陈森..天福庙水库底泥营养盐污染空间分布特征及资源化利用分析[J].四川环境,2025,44(2):54-60,7.基金项目
国家重点研发计划课题"湖泊型水库深水精准清淤与绿色利用技术研究"(2022YFC3202702). （2022YFC3202702）
