基于GEE遥感云平台的三江源植被碳源/汇时空变化研究

张祯祺, 蔡惠文, 张平平, 王泽琳, 李婷婷

A GEE-based study on the temporal and spatial variations in the carbon source/sink function of vegetation in the Three-River Headwaters region

ZHANG Zhenqi, CAI Huiwen, ZHANG Pingping, WANG Zelin, LI Tingting

表2 三江源区2001—2020年NEP趋势变化统计

Tab.2 Statistical analysis of NEP variation in the Three-River Headwaters region from 2001 to 2020

slope趋势分级 变化等级 面积/km2 比例/% [-1,-0.477) 明显变差 6 335.17 2.09 [-0.477,0) 轻微变差 8 635.27 2.85 [0,0.484) 基本稳定 42 243.85 13.96 [0.484,0.813) 轻微好转 44 727.26 14.79 [0.813,1] 明显好转 200 558.45 66.30