Evolutionary process and inundation risk identification of water bodies in the beach area of the Yellow River estuary from 1976 to 2020
LIU Jiafeng1,2(), ZHANG Wenkai1(), DU Xiaomin1, JI Xinyang1, YANG Jinzhong1, FAN Jinghui1, SUN Xiyong1, TONG Jing1
1. China Aero Geophysical Survey and Remote Sensing Center for Natural Resources, Beijing 100083, China 2. Open Research Fund Program of Key Laboratory of Digital Mapping and Land Information Application, Minisitry of Natural Resources, Wuhan 430079, China
The ecological protection and high-quality development of the Yellow River basin has become a national strategy. Hence, conducting dynamic monitoring research on the extent of water bodies in the beach area of the Yellow River estuary to avoid potential inundation risks from the evolution of water bodies holds critical significance. Based on the Landsat remote sensing image dataset for wet seasons in the long term, this study extracted the maximum water body extents in the beach area of the Yellow River estuary at 10 time points from 1976 to 2020 using the decision tree-based multi-index land surface water body extraction method. Moreover, this study calculated the historical inundation frequency of each zone through overlay analysis, further identifying the inundation risks of urban and rural settlements and mining land. The findings reveal an area of 463.7 km2 inundated over five times at 10 time points. Among 631 urban and rural settlements and mining land in 2015, 413, 52, and 20 exhibited low, medium, and high inundation risks, respectively. Overall, it is necessary to specify the relocation requirements, scientifically select relocation sites, and improve the infrastructure targeting construction land like urban and rural settlements in the beach area of the Yellow River estuary.
刘稼丰, 张文凯, 杜晓敏, 冀欣阳, 杨金中, 范景辉, 孙禧勇, 佟晶. 1976—2020年黄河入海口滩区水体演变过程及淹没风险识别[J]. 自然资源遥感, 2024, 36(2): 151-159.
LIU Jiafeng, ZHANG Wenkai, DU Xiaomin, JI Xinyang, YANG Jinzhong, FAN Jinghui, SUN Xiyong, TONG Jing. Evolutionary process and inundation risk identification of water bodies in the beach area of the Yellow River estuary from 1976 to 2020. Remote Sensing for Natural Resources, 2024, 36(2): 151-159.
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2024, Vol. 36 
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