Peng Shou-zhang, Zhao Chuan-yan, Zheng Xiang-lin, Xu Zhong-lin, He Lei
Ministry of Education Key Laboratory of Arid and Grassland Ecology, Lanzhou University, Lanzhou 730000, China.
Ying Yong Sheng Tai Xue Bao. 2011 Jul;22(7):1689-94.
This paper estimated the biomass and carbon storage and their spatial distributions of Qinghai spruce (Picea crassifolia) forests in Qilian Mountains, based on the field investigation, forest map, and meteorological data, and with the help of GIS technology. In 2008, the biomass of the forests was averagely 209.24 t x hm(-2), with a total biomass of 3.4 x 10(7) t. Due to the difference of water and thermal condition, there existed great differences in the biomass of Qinghai spruce within the Mountains. The biomass increased by 3.12 t x hm(-2) with increasing 1 degrees longitude and decreased by 3.8 t x hm(-2) with increasing 1 degrees latitude, and decreased by 0.05 t x hm(-2) with the elevation increasing 100 m. The carbon density of the forests ranged from 70.4 to 131.1 t x hm(-2), averagely 109.8 t x hm(-2), and the average carbon density was 83.8 t x hm(-2) for the young forest, 109.6 t x hm(-2) for the middle age forest, 122 t x hm(-2) for the near-mature forest, 124.2 t x hm(-2) for the mature forest, and 117.1 t x hm(-2) for the over-mature forest. The total carbon storage of Qinghai spruce forests in the study area was 1.8 x 10(7) t.
本文基于实地调查、林相图和气象数据，并借助地理信息系统（GIS）技术，估算了祁连山脉青海云杉（Picea crassifolia）林的生物量、碳储量及其空间分布。2008年，这些森林的生物量平均为209.24 t·hm⁻²，总生物量为3.4×10⁷ t。由于水热条件的差异，祁连山脉内青海云杉的生物量存在很大差异。经度每增加1°，生物量增加3.12 t·hm⁻²；纬度每增加1°，生物量减少3.8 t·hm⁻²；海拔每升高100 m，生物量减少0.05 t·hm⁻²。这些森林的碳密度在70.4至131.1 t·hm⁻²之间，平均为109.8 t·hm⁻²。其中，幼龄林的平均碳密度为83.8 t·hm⁻²，中龄林为109.6 t·hm⁻²，近熟林为122 t·hm⁻²，成熟林为124.2 t·hm⁻²，过熟林为117.1 t·hm⁻²。研究区域内青海云杉林的总碳储量为1.8×10⁷ t。
