石羊河流域人工防护林碳效益估算

王新友, 马全林, 王耀琳

Carbon benefits evaluation of the artificial shelter forest in the Shiyanghe River Basin

Xinyou Wang, Quanlin Ma, Yaolin Wang

表2 石羊河流域人工固沙林碳效益随林龄(0~100 a)的动态变化

Table 2 The dynamic change of carbon benefits in sand-fixing plantation over 0-100 years in Shiyang River Basin

种植年限/a 总碳储量/Mg 碳密度/(Mg·hm-2) 固碳速率/(Mg·hm-2·a-1) 不确定度/% 10 -600 140 -13 -1.3 28 15 -900 208 -20 -1.3 26 20 -1 200 280 -26 -1.3 24 25 -2 195 448 -48 -1.9 17 30 -995 113 -22 -0.72 24 35 -892 566 -19 -0.55 23 39 -810 504 -18 -0.45 23 50 -584 770 -13 -0.25 23 60 -379 610 -8.2 -0.14 22 70 -174 529 -3.8 -0.05 22 80 30 638 0.67 0.01 22 90 235 794 5.1 0.06 21 100 440 947 9.6 0.1 21