摘要
森林植被是陆地生物圈的主体,森林碳储量和碳密度的研究对森林碳汇及全球气候变化都具有重要的理论和实践意义。根据山西省太岳山2010,2015年2期森林资源连续清查数据,采用TWINSPAN方法对太岳山135个有林样地的森林植被进行群系分类,并运用生物量转换因子连续函数法,对太岳山森林植被碳密度的变化进行了动态分析,同时对太岳山森林碳密度的空间格局进行了研究。结果表明,太岳山森林植被可分为9个群系,9个群系的碳密度差距明显,其中,辽东栎+鹅耳枥群系的碳密度最高,而刺槐群系的碳密度最低。2010—2015年太岳山森林碳密度显著增加,5 a间碳密度增加了6.91 t/hm^2,以1.38 t/(hm^2·a)的速率增加。太岳山森林碳密度分布总体呈现西高东低的格局,碳密度随着海拔的升高而升高,最低为6.17 t/hm^2,最高为62.24 t/hm^2;太岳山有林样地以斜坡和陡坡为主,陡坡碳密度最高,缓坡碳密度最低;太岳山有林样地以上、中2个坡位为主,平地碳密度最高,中坡位碳密度最低;太岳山有林样地主要集中在半阴坡和阳坡,碳密度以阴坡最高,以阳坡最少。
Forest vegetation is the main body of the terrestrial biosphere,the research of carbon reserve and carbon density has important theoretical and practical significance for forest carbon sinks and global climate change.Based on the data from the continues forest inventory in 2010 and 2015,the forest vegetation of Taiyue Mountain in Shanxi province was classified using TWINSPAN method.The forest carbon density of Taiyue Mountain was analyzed by the variable biomass expansion factor function（BEFF）method.And the spatial pattern of forest carbon density in Taiyue Mountain was studied.The results showed that the forest vegetation of Taiyue Mountain was divided into nine formations,the carbon density of the nine formations was different.The carbon density of Form.Quercus wutaishanica ＋Carpinus turczaninowii Hance was the highest,the minimum was Form.Robinia pseudoacacia L.The forest carbon density of Taiyue Mountain had a significant increase from 2010 to 2015.The carbon density increased by 6.91 t/hm^2 in five years,and the growth rate of carbon density was 1.38 t/（hm^2·a）.The forest carbon density of Taiyue Mountain appeared to west high east low.The carbon density of Taiyue Mountain as the altitude rose,the minimum was 6.17 t/hm^2,the highest was 62.24 t/hm^2.The forest land of Taiyue Mountain gave priority to with slope and steep,the carbon density of steep was the highest,the carbon density of gentle slope was the lowest.The carbon density of Taiyue Mountain gave priority to with up,middle slope positions.The carbon density of Taiyue Mountain was the highest in the plain and the lowest was in the middle slope.The forest land of Taiyue Mountain gave priority to with the half cloudy slope and sunny slope,the cloudy was the highest and the sunny slope was the least.
出处
《山西农业科学》
2017年第11期1814-1817,共4页
Journal of Shanxi Agricultural Sciences
关键词
太岳山
碳储量
碳密度
空间分布格局
Taiyue mountain
carbon reserve
carbon density
spatial distribution pattern
