| 基于Sentinel-2卫星影像的水污染遥感动态监测——以石家庄市正定县滹沱河为例 |
| 投稿时间：2024-12-07 修订日期：2024-12-17 点此下载全文 |
| 引用本文：陆家杰,张霞,侯泽轩,廖正雄,薛一诺,李梦格,郭佳茜,张莉,杨静婷.基于Sentinel-2卫星影像的水污染遥感动态监测——以石家庄市正定县滹沱河为例[J].红外,2025,46(5):38~48 |
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| 基金项目:国家自然科学基金青年科学基金项目（42001300）；国家重点研发计划项目（2022YFB3903005）；河北省教育厅青年基金项目（QN2020212）;河北地质大学省级大学生创新创业训练计划资助项目（S202410077023） |
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| 中文摘要:作为正定县的重要河流，滹沱河的水污染状况影响经济社会发展及人民生活质量，因此高效率监测水污染状况尤为重要。基于Sentinel-2卫星影像，综合叶绿素a浓度、悬浮物浓度、水体透明度三个指标构建水体主要污染物遥感反演模型，并利用空间自相关模型对石家庄市正定县滹沱河进行水污染遥感动态监测。研究结果表明：2019～2023年期间，叶绿素a浓度逐渐降低，其中2019年上游的叶绿素a浓度最高；悬浮物浓度较高区域逐渐从上游转移至下游；水体透明度总体呈现先升后降的趋势；水污染程度由上游污染集聚转变为中下游污染集聚；正定县滹沱河的空间集聚程度先降后升，且高-高集聚类型数量不断减少，呈现出显著的空间正相关关系。选取高精度卫星数据，融合水污染关键指标，对滹沱河水污染状况进行动态监测，揭示水污染的空间集聚分布特征，为当地的水环境保护和治理提供了科学依据。 |
| 中文关键词:滹沱河 遥感 叶绿素a浓度 悬浮物浓度 透明度 |
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| Dynamic Monitoring of Water Pollution by Remote Sensing Based on Sentinel-2 Satellite Imagery: A Case Study of Hutuo River in Zhengding County, Shijiazhuang City |
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| Abstract:As an important river in Zhengding County, the water pollution situation of Hutuo River affects economic and social development and people′s quality of life. Therefore, it is particularly important to monitor the water pollution situation efficiently. Based on Sentinel-2 satellite imagery, a remote sensing inversion model of major water pollutants was constructed by integrating three indicators: chlorophyll-a concentration, suspended matter concentration, and water transparency. The spatial autocorrelation model was used to conduct dynamic remote sensing monitoring of water pollution in the Hutuo River in Zhengding County, Shijiazhuang City. The research results show that during the period from 2019 to 2023, the chlorophyll-a concentration gradually decreased, among which the chlorophyll-a concentration in the upper reaches is the highest in 2019; the area with high suspended matter concentration gradually shifted from the upper reaches to the lower reaches; the water transparency generally showed a trend of first rising and then falling; the degree of water pollution changed from upstream pollution agglomeration to mid- and lower reaches pollution agglomeration; the spatial agglomeration degree of Hutuo River in Zhengding County first decreased and then increased, and the number of high high agglomeration types continued to decrease, showing a significant spatial positive correlation. By selecting high-precision satellite data and integrating key water pollution indicators, the water pollution status of the Hutuo River is dynamically monitored, revealing the spatial cluster distribution characteristics of water pollution and providing a scientific basis for local water environment protection and governance. |
| keywords:Hutuo river remote sensing chlorophyll-a concentration suspended matter concentration transparency |
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