马六甲海峡两岸40千米内土地覆被变化数据集(1990、2000、2010、2017)

马六甲海峡位于马来半岛和苏门答腊岛之间，是连接太平洋和印度洋的通道。选取海岸线、土地覆被和海域生态环境要素为表征因子，对马六甲海峡海岸带的生态环境现状进行分析。基于Landsat TM/OLI 影像与生态指标、决策树以及监督分类方法相结合，开发了马六甲海峡沿岸40 km 以内土地覆盖数据集（1990、2000、2010、2017）。数据结果表明，从1990年到2017年，马来西亚半岛西岸的人工地表和耕地每年分别增加6.55%和1.20%，林地减少1.46%。苏门答腊东岸人工地表和耕地年均分别增加11.45%和2.42%，林地年减少1.15%。

The Strait of Malacca, situated between the Malay Peninsula and Sumatra Island, is a crucial maritime passage connecting the Pacific Ocean and the Indian Ocean. Coastline, land cover and marine ecological environment factors were selected as characterization indicators to analyze the current ecological environment status of the coastal zone of the Strait of Malacca. Combining Landsat TM/OLI imagery with ecological indicators, decision tree and supervised classification methods, a land cover dataset within 40 km along the coast of the Strait of Malacca was developed for the years 1990, 2000, 2010 and 2017. The results indicate that from 1990 to 2017, the artificial surfaces and croplands on the western coast of the Malay Peninsula increased by 6.55% and 1.20% annually respectively, while forest land decreased by 1.46% per year. On the eastern coast of Sumatra, the artificial surfaces and croplands increased by 11.45% and 2.42% annually respectively, with forest land decreasing by 1.15% per year.