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基于森林资源清查资料分析山东省森林立木碳储量

李士美1,杨传强2,王宏年2,盖力强3**   

  1. (1青岛农业大学园林与林学院, 山东青岛 266109; 2山东省林业监测规划院, 济南 250014; 3中国地质科学院水文地质环境地质研究所,  石家庄 050061)
  • 出版日期:2014-08-18 发布日期:2014-08-18

Carbon storage of forest stands in Shandong Province estimated by forestry inventory data.

LI Shi-mei1, YANG Chuan-qiang2, WANG Hong-nian2, GE Li-qiang3   

  1. (1College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao 266109, Shandong, China; 2Shandong Province Forestry Survey and Planning Institute, Ji’nan 250014, China; 3Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China)
  • Online:2014-08-18 Published:2014-08-18

摘要:

利用山东省第7次森林资源清查数据,采用生物量-蓄积量转换函数和平均生物量法,结合不同树种的含碳率,研究山东省森林生态系统立木碳储量、碳密度及其按优势树种、龄组和林种的分布特征.结果表明: 2007年山东省森林立木碳储量为25.27 Tg,其中,针叶林、针阔混交林和阔叶林的立木碳储量分别占全省立木碳储量的8.6%、2.0%和89.4%.不同林龄组的立木碳储量大小顺序为幼龄林>中龄林>成熟林>近熟林>过熟林,其中幼龄林和中龄林占全省立木总碳储量的69.3%.用材林、经济林和防护林的立木碳储量分别占全省立木碳储量的37.1%、36.3%和24.8%.山东省森林平均立木碳密度为10.59 t·hm-2,低于全国平均水平,主要是由于现有森林用材林和经济林比重高,中幼林多、成过熟林少.

 

Abstract: Based on the 7th forestry inventory data of Shandong Province, this paper estimated the carbon storage and carbon density of forest stands, and analyzed their distribution characteristics according to dominant tree species, age groups and forest category using the volume-derived biomass method and average-biomass method. In 2007, the total carbon storage of the forest stands was 25.27 Tg, of which the coniferous forests, mixed conifer broad-leaved forests, and broad-leaved forests accounted for 8.6%, 2.0% and 89.4%, respectively. The carbon storage of forest age groups followed the sequence of young forests > middle-aged forests > mature forests > near-mature forests > overmature forests. The carbon storage of young forests and middleaged forests accounted for 69.3% of the total carbon storage. Timber forest, non-timber product forest and protection forests accounted for 37.1%, 36.3% and 24.8% of the total carbon storage, respectively. The average carbon density of forest stands in Shandong Province was 10.59 t·hm-2, which was lower than the national average level. This phenomenon was attributed to the imperfect structure of forest types and age groups, i.e., the notably higher percentage of timber forests and non-timber product forest and the excessively higher percentage of young forests and middleaged forest than mature forests.