青藏高原10米分辨率土地覆被图（2022年）

青藏高原拥有多种植被类型，从低海拔和中海拔地区的阔叶林和针叶林到高海拔和旱地的高山草原。准确详细地绘制青藏高原上的植被分布图对于更好地了解气候变化对陆地生态系统的影响至关重要。然而，现有的青藏高原土地覆被数据集要么空间分辨率较低，要么植被类型不足以表征某些独特的青藏高原生态系统，例如...

The Qinghai-Tibet Plateau hosts a wide range of vegetation types, spanning from broad-leaved and coniferous forests at low and medium altitudes to alpine steppes in high-altitude and arid regions. Accurately and comprehensively mapping the vegetation distribution across the Qinghai-Tibet Plateau is of paramount importance for advancing our understanding of the impacts of climate change on terrestrial ecosystems. Nevertheless, current land cover datasets for the Qinghai-Tibet Plateau either exhibit relatively low spatial resolution, or their vegetation classification schemes are insufficient to characterize some unique ecosystems endemic to the plateau, such as...

搜集汇总

背景与挑战

背景概述

该数据集是2022年青藏高原地区的10米高分辨率土地覆盖图，基于Sentinel-1和Sentinel-2遥感数据，利用Google Earth Engine平台和机器学习方法生成，包含12个植被类别和3个非植被类别，整体分类准确率达86.5%。其特点在于精细刻画了高寒碎石等独特高原生态系统，弥补了现有数据在空间分辨率和植被类型表征上的不足，适用于气候变化和陆地生态系统研究。