%A Li Yanan, Yu Xiaofan, Xu Zhongqi, Liu Lele, Yao Weixing, Wang Li %T Carbon Density Characteristics of Two Typical Shrub Communities in the Northern Mountain Region of Hebei %0 Journal Article %D 2014 %J Scientia Silvae Sinicae %R 10.11707/j.1001-7488.20140604 %P 28-33 %V 50 %N 6 %U {http://www.linyekexue.net/CN/abstract/article_6742.shtml} %8 2014-06-25 %X

The carbon density characteristics of two common types of shrubs (including Spiraea pubescens shrub and Corylus heterophylla shrub) were studied in the paper,which are distributed in northern mountain region of Hebei province. The results showed that Spiraea pubescens shrub was higher than Corylus heterophylla shrub in both the carbon density of every parts and total carbon density. The biological carbon density, litter carbon density, soil organ carbon density and total carbon density of Spiraea pubescens shrub were 5.91,0.23,54.31 and 60.44 t·hm-2,and those of Corylus heterophylla shrub were 12.81,1.38,141.08 and 155.27 t·hm-2. The biological carbon density of Spiraea pubescens shrub was lower than the average carbon density of shrub communities of China which was 10.88 t·hm-2, and that of Corylus heterophylla shrub was higher than that. The total carbon density of Spiraea pubescens shrub was lower than that of Larix gmelinii forest,Populus davidiana forest, Betula platyphylla forest, Quercus mongolica forest and Pinus tabulaeformis forest, and the total carbon density was lower than that of Larix gmelinii forest,Populus davidiana forest, Betula platyphylla forest,and higher than that of Quercus mongolica forest and Pinus tabulaeformis forest. It was concluded that there is significant difference among various shrubs, and there is a bigger carbon density in the shrubs under better site conditions and free of disturbance for long time and the carbon density of shrubs should be considered when the carbon density is evaluated in regional scale, moreover, in order to enhance carbon sequestration of vegetation, some measurements should be carried out to lead a succession from shrubs to forests. Shrubs might be regarded as complementary for forests in carbon sequestration in temporal and spatial aspects.