基于Google Earth Engine的红树林近30年时空变化分析

Analysis of Temporal and Spatial Changes of Mangroves in Recent 30 Years Based on Google Earth Engine Data

为了更好地分析保护区内红树林现状,基于Google Earth Engine平台,使用Landsat影像、DEM数据,结合植被指数、水体指数、高程、坡度等参数提取了1985—2015年保护区内的红树林区域,分析了近30年该地区红树林分布的变化趋势。结合人类活动、政策、经济发展等,分析其变化的驱动因子,进一步研究红树林物种分布和周边人类活动的变化,分析天然林和人工林的变化规律。

In order to better analyze the status of mangrove in the reserve,based on Google Earth Engine platform,using Landsat Image,DEM data,combined with vegetation index,water index,elevation,slope and other parameters,the mangrove area in the reserve from 1985 to 2015 was extracted,and the change trend of mangrove distribution in the area in recent 30 years was analyzed.Combined with human activities,policies and economic development,the driving factors of the changes were analyzed,and the distribution of mangrove species and the changes of human activities in the surrounding areas were further studied,and the change rules of natural forest and artificial forest were analyzed.