首页|Land cover change and its response to water level around Tonle Sap Lake in 1988-2020

Land cover change and its response to water level around Tonle Sap Lake in 1988-2020

扫码查看
原文链接
  • 万方数据
The transboundary influence of environmental change is a critical issue in the Lancang-Mekong region.As the largest river-connected lake in the lower Mekong,the eco-logical change and influence of Tonle Sap Lake have received widespread attention and discussion,especially after 2008,when the hydrological regime of the Lancang-Mekong River mainstream underwent distinct changes.However,the linkage and coupling mechanism be-tween the lake riparian environment and mainstream water level change are still unclear.In this study,the interannual spatiotemporal changes in land cover in the Tonle Sap Lake ri-parian zone(TSLRZ)and their relationship with mainstream water levels were analysed.The results showed that the expansion of farmland was the most notable change in 1988-2020.After 2008,the land cover changes intensified,manifested as accelerated farmland expan-sion,intensified woodland fragmentation and significant water body shrinkage.Furthermore,the responses of the water body,degraded land,wasteland and grassland areas to the mainstream water levels weakened after 2008.Evidently,the land cover changes in the TSLRZ in the last 30 years were less related to the mainstream water level change than to local reclamation and logging.These results can offer a new scientific basis for the trans-boundary influence analysis of hydrological change.

riparian zone land cover changemainstream water level change and transboundary influenceTonle Sap LakeLancang-Mekong River

ZHANG Jing、MA Kai、FAN Hui、HE Daming

展开 >

Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security,Kunming 650091,China

Institute of International Rivers and Eco-Security,Yunnan University,Kunming 650091,China

National Key Research and Development Program of ChinaYunnan Scientist Workstation for Daming He International River Research

2016YFA0601600KXJGZS-2019-005

2024

10.1007/s11442-024-2207-1

地理学报(英文版)
中国地理学会,中国科学院地理科学与资源研究所

地理学报(英文版)

CSTPCD
影响因子：1.307
ISSN：1009-637X
年,卷(期)：2024.34(2)
  • 61