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基于林业生态功能和青海省森林资源清查数据,采用森林植被生物量换算因子连续函数法,系统估算与分析青海省森林植被碳储量、碳密度,研究其近20a碳储量变化并进行现状分析。结果表明:(1)青海省森林碳储量为11 182 642.22t,占同时期全国总碳储量的1.98%,青海省森林生态系统中面积占较大比重的中龄林,其碳储量尚未达到最大,有较大发展空间;(2)青海省近20a天然林类型中碳储量较大的前4种分别是:柏木(Cupressus funebris)、桦木(Betula)、杨树(Populus)、云杉(Picea asperata)天然林,表明这几种天然林在青海省森林植被中占有重要的地位,其集中分布对区域生态功能的发挥起主导作用;(3)所采用的碳储量估算方法尚存不足,在以后计算中应考虑根据不同林分类型的含碳量进行计算。
Based on the forestry ecological functions and the inventory data of forest resources in Qinghai Province, the forest vegetation biomass conversion factor continuous function method was used to systematically estimate and analyze the carbon stocks and carbon densities of forest in Qinghai Province. The changes of carbon stocks in recent 20 years were studied and the status quo was analyzed. The results showed as follows: (1) The forest carbon storage in Qinghai Province was 11 182 642.22t, accounting for 1.98% of the national total carbon storage in the same period. The middle-aged forest in Qinghai Province with a large proportion of forest ecosystems had not reached the maximum carbon storage , There is more room for development; (2) The top 4 species with large carbon reserves in nearly 20 years of natural forest in Qinghai are: Cupressus funebris, Betula, Populus, Picea Asperata) natural forests, indicating that these natural forests play an important role in the forest cover of Qinghai Province. The concentration distribution of these natural forests plays a leading role in the development of regional ecological functions. (3) The estimation methods of carbon stocks used are not enough. After calculation should be considered according to different types of forest carbon content calculation.