基于星载ICESat-2/ATLAS数据的天然林郁闭度空间异质性研究
Spatial heterogeneity of natural forest canopy cover based on spaceborne ICESat-2/ATLAS data
[目的]星载激光雷达能够提供全球尺度的采样观测,借此机会,本研究基于高密度的ICESat-2/ATLAS采样足迹,探讨香格里拉市天然林郁闭度的空间异质性及其与地形因子的关系,为科学经营管理天然林提供参考。[方法]本研究以香格里拉天然林为研究对象,基于ICESat-2/ATLAS数据,结合 51 块实测样地,采用四种机器学习算法(k-NN、SVM、RF、GBRT)构建光斑尺度的郁闭度估测模型,选择性能最优的模型预测天然林地内的 1100 个光斑足迹…查看全部>>
[Objective]Spaceborne LiDAR can provide global scale sampling and observation.Based on the high-density ICESat-2/ATLAS sampling footprint,this study explores the spatial heterogeneity of natural forest canopy cover(NFCC)in Shangri-La and its relationship with topographic factors,so as to provide references for scientific management of natural forests.[Method]This study takes Shangri-La natural forest as the research object.Based on ICESat-2/ATLAS data and co…查看全部>>
余金格;舒清态;胥丽;罗绍龙;国朝盛;王书伟;周文武;
forest canopy cover natural forest spaceborne LiDAR topography factor spatial heterogeneity.
1994-1995 / 2
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