三江源生态工程实施前后长江源区宏观生态状况变化分析
刘璐璐, 曹巍, 邵全琴

Change of Ecological Condition in the Headwater of the Yangtze River Before and After the Implementation of the Ecological Conservation and Construction Project
LIU Lulu,CAO Wei,SHAO Quanqin
表3 工程前后长江源区植被净初级生产力变化面积统计表
Tab. 3 The area of NPP change before and after implementing the ecological project in the headwaters of the Yangtze River
植被净初级生产力变化/(gCm-2a-1 工程前后植被净初级生产力变化
面积/km2 占全区面积比重/(%)
明显减少(<-100) 152.04 0.14
轻度减少(-100~-50) 1 023.97 0.95
轻微减少(-50~-5) 11 578.77 10.69
基本稳定(-5~5) 15 595.60 14.40
轻微增加(5~50) 50 788.03 46.91
轻度增加(50~100) 19 794.80 18.28
明显增加(>100) 9 343.22 8.63