干旱区生态环境知识资源中心(Arid): 亚洲中部干旱区植被与土壤碳密度分析

Arid

	亚洲中部干旱区植被与土壤碳密度分析
其他题名	Vegetation and soil carbon density in arid region of Central Asia
	王渊刚; 罗格平; 王玉辉; 韩其飞; 范彬彬; 陈耀亮
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2014
卷号	37 期号:2 页码:239-249
中文摘要	碳密度作为估算陆地生态系统吸收和排放含碳气体数量的关键要素一碳存储能力的重要指标之一,对判定碳源汇、制定缓解全球变化的合理政策措施具有重要意义。干旱半干旱区相关研究的薄弱性与其广大的陆地面积极不相称。通过搜集与中亚五国和新疆生物量或植被碳密度资料有关的文献,整理中亚五国和新疆的土壤剖面数据,对亚洲中部干旱区植被和土壤碳密度开展研究。结果表明:亚洲中部干旱区植被和土壤碳密度因区域和植被类型的不同而呈现一定差异。总体而言,林地的植被与土壤的碳密度最高;草地土壤碳密度高于耕地土壤碳密度,中亚五国草地植被碳密度高于该区农田植被碳密度,而低于新疆农田植被碳密度;裸地作为植被覆盖度最低的类型,植被与土壤的碳密度最低。
英文摘要	Carbon storage capacity is the key factor to estimate the quantity of carbon emissions and sequestrations by terrestrial ecosystem. As one of the important indicators, carbon density has vital significance in determining carbon sinks and developing reasonable policies for global change mitigation. Arid and semiarid area is widely distributed in Central Asia, however, research on carbon storage in this region is comparably scarce. This paper investigates vegetation and soil carbon density in arid region of Central Asia, based on published literatures associated to biomass or vegetation carbon density and soil profile data of the five countries in Central Asia and Xinjiang, China. The results shows that vegetation and soil carbon density present certain differences with different regions and vegetation types in the arid region of Central Asia. In the arid region of Central Asia, the woodland has the highest vegetation carbon density and soil organic carbon density because of the best hydrothermal conditions. The vegetation and soil carbon density of woodland in Xinjiang are 7 728.1 g C/m~2 and 25.4 kg C/m~2 respectively,which are higher than that in other five countries of Central Asia (6 236.0 g C/m~2 and 21.6 kg C/m~2 respectively). The soil carbon density of grassland is higher than the farmland’s in arid region of Central Asia. Among them,the soil carbon density of grassland in Xinjiang and five countries of Central Asia are 15.4 kg C/m~2 and 10.9 kg C/m~2,and the soil carbon density of farmland are 9.5 kg C/m~2 and 7.1 kg C/m~2 respectively, because of anthropology disturbance. The vegetation carbon density of grassland in Xinjiang and five countries of Central Asia are 585.5 g C/m~2 and 645.9 g C/m~2, which is lower than the vegetation carbon density of farmland in Xinjiang (806.0 g C/m~2), but higher than the vegetation carbon density of farmland in five countries of Central Asia(384.7 g C/m~2),which is dominated by dry farmland with outdated farming system. Bare land has the lowest vegetation and soil carbon density in the whole study area due to the lowest vegetation coverage. The vegetation carbon density of bare land in Xinjiang and five countries in Central Asia are 54.6 g C/m~2 and 86.3 g C/m~2,and the soil carbon density of bare land are 2.80 kg C/m~2 and 2.6 kg C/m~2. In addition,in the arid region of Central Asia,vegetation and soil carbon density display certain vertical variation characteristics because of the precipitation and temperature are affect by the elevation. Overall,terrestrial ecosystem carbon storage capacity is higher in Xinjiang than in the five countries of Central Asia.
中文关键词	植被 ; 土壤 ; 碳密度 ; 干旱区 ; 中亚
英文关键词	vegetation soil carbon density arid region Central Asia
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:5124265
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231107
作者单位	中国科学院新疆生态与地理研究所, 荒漠与绿洲生态国家重点实验室, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	王渊刚,罗格平,王玉辉,等. 亚洲中部干旱区植被与土壤碳密度分析[J]. 中国科学院新疆生态与地理研究所,2014,37(2):239-249.
APA	王渊刚,罗格平,王玉辉,韩其飞,范彬彬,&陈耀亮.(2014).亚洲中部干旱区植被与土壤碳密度分析.干旱区地理,37(2),239-249.
MLA	王渊刚,et al."亚洲中部干旱区植被与土壤碳密度分析".干旱区地理 37.2(2014):239-249.