海南省红树林专题数据（1990、2000、2005年）

本数据包括：数据获取时间大致分布在1990年、2000年的LandsatTM/ETM数据和时间分布在2005年左右的CBERS02数据，覆盖海南省沿海范围，以省为单位，提取1990年、2000年、2005年海南省红树林空间分布专题数据。数据生产者结合海岸带边界线数据，先制作红树林生长范围MASK，在该MASK内采用监督分类方法，提取各省红树林专题数据。空间分辨率为28.5m或19.5m。投影方式：WGS_1984_UTM_Zone_50N。数据为光盘映像格式，使用者为红树林湿地研究及海岸带研究科研、教育工作者等。

This dataset includes Landsat TM/ETM data acquired approximately in 1990 and 2000, as well as CBERS 02 data acquired around 2005, covering the coastal areas of Hainan Province. The thematic data on the spatial distribution of mangroves in Hainan Province for the years 1990, 2000 and 2005 were extracted at the provincial scale. The data producers first generated a MASK for the mangrove growth range by combining coastal zone boundary data, then applied the supervised classification method within this MASK to extract the thematic mangrove data for Hainan Province. The spatial resolution of the dataset is 28.5 m or 19.5 m. Projection: WGS_1984_UTM_Zone_50N. The data is provided in disc image format and is intended for researchers and educators engaged in mangrove wetland and coastal zone research.