Wu Dan, Shao Quan-Qin, Liu Ji-Yuan, Huang Lin
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
Ying Yong Sheng Tai Xue Bao. 2011 Jan;22(1):41-6.
Based on the sixth forest inventory data of Taihe County, Jiangxi Province, this paper analyzed the curve relations between the carbon densities and ages of major forest types by using Logistic equation, and estimated the total amounts and change trends of the biomass and carbon storage of forest vegetation from 1985 to 2003 by the method of biomass expansion factor. The carbon storage in 2020 and 2030 was estimated by setting 2003 as the baseline year and assuming that the area of forest vegetation remained stable and without consideration of forest rotation. In 2003, the total forest area of Taihe County was 15.74 x 10(4) hm2, the total biomass was 6.71 Tg, the vegetation carbon storage was 4.14 Tg C, and the average carbon density was 26.31 t C x hm(-2). In 1985, 1994, 2003, 2020, and 2030, the forest carbon storage was 1.06, 2.83, 4.14, 5.65, and 6.35 Tg C, respectively. The carbon density of the forest vegetation in Taihe County decreased from the eastern and western regions to the central. Artificial afforestation contributed significantly to the increase of forest stand area, and consequently, to the improvement of forest carbon sequestration capacity.
基于江西省泰和县第六次森林资源清查数据，本文运用Logistic方程分析了主要森林类型碳密度与年龄的曲线关系，并采用生物量扩展因子法估算了1985—2003年森林植被生物量和碳储量的总量及变化趋势。以2003年为基准年，在假设森林植被面积保持稳定且不考虑森林轮伐的情况下，估算了2020年和2030年的碳储量。2003年，泰和县森林总面积为15.74×10⁴hm²，总生物量为6.71Tg，植被碳储量为4.14Tg C，平均碳密度为26.31t C·hm⁻²。1985年、1994年、2003年、2020年和2030年的森林碳储量分别为1.06、2.83、4.14、5.65和6.35Tg C。泰和县森林植被的碳密度由东西部向中部递减。人工造林对林分面积的增加有显著贡献，进而对森林碳固存能力的提高有显著贡献。
