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【目的】通过夜光遥感技术，探究灯光变化与东平湖区域非法采砂、移民等行为的关联关系，为东平湖治理和规划提供决策参考。【方法】采用NPP/VIIRS、珞珈一号夜光遥感数据，结合河湖流域的社会经济及已有违法先验信息等数据，利用改进的基于时间滑动窗口的隐马尔可夫模型影像优化算法，在大尺度空间上分析东平湖非法采砂和移民行为。以区域夜光强度指数和区域夜光梯度指数为统计指标，得到东平湖区域整体夜光分布。【结果】(1)2013—2020年，老湖区湖面夜光和非法采砂呈下降趋势；2014—2015年，区域夜光强度指数降幅达到37.2%,同时湖区南部非法采砂活动骤然减少，非法采砂行为得到有效控制；2019年，湖区夜光几乎消失，非法采砂销声匿迹。(2)移民行为集中在2013—2017年，2017年湖区北部夜光消失，移民搬迁完成；2020年老湖区移民回迁工作顺利开展，湖区北部浒源社区处再次出现微弱夜光。(3)随着经济社会的发展，人类活动更加活跃，滞洪区夜光呈上升趋势，2015—2020年加权后辐射亮度值年均增幅为5.31%。【结论】夜光遥感可有效监测东平湖非法采砂与移民活动的时空变化，其结果与治理成效高度吻合。未来可将夜光遥感纳入河湖动态监管体系，为违法活动取证和人口迁移分析提供技术支持。
Abstract：【Objective】 Nighttime light remote sensing is employed to analyze the correlation between nighttime light variations and activities such as illegal sand mining and migration in the Dongping Lake area, thereby providing decision-making references for the governance and planning of the lake. 【Methods】 NPP/VIIRS and Luojia 1-01 nighttime light remote sensing data were used, along with socioeconomic data and prior information of illegal activities in the river and lake basin. An improved hidden Markov model image optimization algorithm based on a time sliding window was applied to analyze illegal sand mining and migration activities in the Dongping Lake at a large spatial scale. The regional nighttime light intensity index and regional nighttime light gradient index were adopted as statistical indicators to characterize the overall nighttime light distribution in the Dongping Lake area. 【Results】 The results showed that from 2013 to 2020, nighttime light and illegal sand mining activities in the lake surface of Laohu Town showed a downward trend. From 2014 to 2015, the regional nighttime light intensity index decreased by 37.2%. Additionally, illegal sand mining activities in the southern part of the lake area decreased sharply, indicating effective control of such activities. In 2019, nighttime light in the lake area had nearly vanished, and illegal sand mining activities had ceased entirely. Migration activities were concentrated between 2013 and 2017. In 2017, nighttime light in the northern part of the lake area disappeared, indicating the completion of the relocation. In 2020, the return migration to Laohu Town proceeded smoothly, and faint nighttime light reemerged in the Huyuan community in the northern part of the lake area. With socioeconomic development, human activities became more active. Nighttime light in the flood detention area showed an increasing trend, with the weighted radiation intensity value rising at an average of 5.31% per year from 2015 to 2020. 【Conclusion】 Nighttime light remote sensing can effectively monitor the spatiotemporal changes in illegal sand mining and migration activities in Dongping Lake, with the results aligning closely with governance effectiveness. In the future, nighttime light remote sensing can be integrated into a dynamic monitoring system for rivers and lakes, providing technical support for evidence collection related to illegal activities and for population migration analysis.
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基本信息:
DOI：10.19760/j.ncwu.zk.2026024
中图分类号:TV882.9;TP79
引用信息:
[1]刘辉,朱梦源,苗长伟,等.夜光遥感视域下东平湖非法采砂和移民行为监测[J].华北水利水电大学学报(自然科学版),2026,47(02):62-72.DOI:10.19760/j.ncwu.zk.2026024.
基金信息:
国家重点研发计划项目(2024YFC3210800); 国家自然科学基金项目(41901411); 河南省高校科技创新人才支持计划项目(26HASTIT032); 中央引导地方科技发展资金项目(2025ZYDF033)
2025-05-12
2025-05-12
2025-05-12