Spatial and Temporal Evolution of Mangrove Forests in Myanmar from 1990 to 2020
Spatial and temporal evolution of mangroves in Myanmar over a long time series is significant for effectively managing and conserving mangrove forest resources.We use existing global mangrove datasets and inter-tidal data to generate potential distribution areas of mangrove forests.We then construct a multi-indexed method to classify probability thresholds by combining various Landsat-based mangrove indices and extracting spatial distributions of mangrove forests in Myanmar for 1990,1995,2000,2005,2010,2015,and 2020.Finally,we analyze the characteristics of the spatial and temporal evolution of mangrove forests.The results show that:1)The integrated multi-indexed probability threshold method has a strong extraction efficiency and accuracy,which can effectively classify mangroves.2)From 1990 to 2020,the mangrove area in Myanmar shows a trend of decreasing followed by increasing.In the past 30 years,more than 30 percent of the mangrove forests have disappeared,with Ayeyarwady Province displaying the most dramatic changes.3)From 1990 to 2020,from the perspective of spatial evolution,the mangrove segmentation index in Myanmar shows a fluctuating upward trend overall,and the degree of mangrove fragmentation is increasing.The characterization of the spatial and temporal evolution of mangroves in Myanmar provides essential information for the protection of mangrove ecosystems in Myanmar,as well as technical references for the analysis of the evolution of mangroves in other regions.
MangroveMyanmarMangrove indexTemporal and spatial changesRemote sensing
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