人工防护林碳储量估算——以新疆墨玉为例

通过2009年8月对新疆墨玉县人工减排林样地进行实地调查取样,获得该地区人工减排林生态系统植被生长状况各种数据,利用这些数据采用生物量与蓄积量关系为基础的植物碳储量估算方法及土壤剖面有机质百分含量推算土壤碳储量的方法分别对干旱区人工林植被、土壤碳储量进行估算。结果表明,干旱区墨玉县玉北固阻结合流沙固定技术试验示范区人工减排林现有碳储量4522.01Mg,波斯坦库勒天然稀疏植被封育区现有碳储量1840.12Mg,土壤平均碳储量相差不大,分别为25.91t/100m2和27.39t/100m2。波斯坦库勒天然稀疏植被封育区内大多是幼龄林,碳储量并未达到最大,随着树木的生长,这些林木还能够固定一定量的大气碳,波斯坦库勒天然稀疏植被封育区的生态系统碳储量能力还有很大的提升空间。新疆减排林区碳储量将进一步增加。

Carbon Sequestration of Artificial Forecast: Taking Forest Ecosystem of Moyu, Xinjiang as an Example

Based on investigation and sample of artificial forest in Moyu County,Xinjiang,the data of ecosystem vegetation growth were obtained in August,2009.The arid area planted forest carbon storage and soil carbon storage were estimated,results indicated that the carbon storage of artificial forests in Yubei was 4,522.01Mg,carbon storage of artificial forests in Bositankule was 1,840.12Mg.There is not different in average of soil carbon storage between Yubei and Bositankule,with 25.91t/100m2 and 27.39t/100m2 respectively.Since artificial forest in Bositankule mostly is the young trees,carbon pool of young and middle-age forest has not achieved the minimum,along with trees growth,they can also stabilize amount of carbons.Forest ecosystem of arid areas will have greater influence on global carbon cycle.