Spatial-Temporal Mapping and Landscape Influence of Aquaculture Ponds in the Yangtze River Economic Belt from 1985 to 2020

被引:3
作者
Meng, Yaru [1 ,2 ,3 ,4 ]
Zhang, Jiajun [2 ]
Yang, Xiaomei [1 ,3 ]
Wang, Zhihua [1 ,3 ]
机构
[1] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
[2] Southwest Univ, Sch Geog Sci, Chongqing 400715, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] Chinese Acad Sci, Aerosp Informat Res Inst, Key Lab Quantitat Remote Sensing Informat Technol, Beijing 100094, Peoples R China
基金
中国国家自然科学基金;
关键词
Google Earth Engine; inland regions; Yangtze River Economic Belt; aquaculture ponds; Landsat; Sentinel-2; land use/cover change; intelligent interpretation of remote sensing; CA MAU PROVINCE; SURFACE-WATER; EXTRACTION; AREA; CLASSIFICATION; DYNAMICS; CHINA; NDVI;
D O I
10.3390/rs15235477
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Most current research on aquaculture ponds focuses on coastal areas, leaving a gap in understanding of inland regions, such as the strategically significant Yangtze River Economic Belt in China. This study introduces an intelligent extraction method for extensive monitoring of aquaculture ponds in Yangtze River Economic Belt, using Landsat and Sentinel data from 1985 to 2020 with five-year intervals based on the Google Earth Engine (GEE) platform. Land cover change data were also analyzed to understand the impact of aquaculture-related changes. Results indicate a significant increase in aquaculture ponds in the Yangtze River Economic Belt from 3235.51 km2 to 14,207.08 km2 between 1985 and 2020. Aquaculture activity primarily shifted eastward from 1985 to 2015, then westward from 2015 to 2020. Approximately 2018.36 km2 of aquatic areas underwent conversion, mainly to water bodies or croplands, with fewer transitions to impervious surfaces, grasslands, or forests. This study highlights that inland areas can also experience significant increases in aquaculture ponds, particularly alongside large rivers, and that the environmental impacts of these changes differ from those in coastal areas, warranting specific attention.
引用
收藏
页数:20
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