Dynamic monitoring of wetlands in the Yellow River delta based on multi-source remote sensing

doi:10.13474/j.cnki.11-2246.2023.0164

Abstract

Abstract: The contradiction between the gradual urban and rural construction and natural ecological environmental protection is becoming more and more intense, and the state and government attach great importance to the development of the Yellow River delta wetland area. Therefore, it is urgent to monitor, extract and analyze the dynamic change information of the Yellow River delta in recent years. In this paper, macroscopic (land use) and microscopic (surface deformation) information of the Yellow River delta wetland region is extracted and analyzed by using 8-view Landsat optical images from 2000 to 2021 and 34-view Sentinel-1 downscaled VV polarized SAR images from 2015 to 2021, combined with socio-economic and natural environment data for driving factor analysis. The results show that the land use pattern of the Yellow River delta wetland region did not change significantly between 2000 and 2021, but the land use degree gradually increased; the spatial distribution of the surface deformation degree of the Yellow River delta wetland region is extremely uneven between 2015 and 2021, with the maximum sedimentation rate reaching -43.643 mm/a and the maximum uplift rate of 0.136 mm/a; human activities and socio human activities and social economy are the dominant drivers of surface information changes in the region.

Key words: the Yellow River delta, multi-source data collaboration, dynamic monitoring, land use, surface deformation

CLC Number:

P237

FAN Yanguo, WANG Jie, FAN Bowen, XU Ziyao. Dynamic monitoring of wetlands in the Yellow River delta based on multi-source remote sensing[J]. Bulletin of Surveying and Mapping, 2023, 0(6): 27-35.

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