干旱区生态环境知识资源中心(Arid): 天山北麓不同土地覆被下土壤有机碳垂直分布特征

Arid

	天山北麓不同土地覆被下土壤有机碳垂直分布特征
其他题名	Vertical Distribution of Soil Organic Carbon in Different Land Cover Types in Northern Piedmont of the Tianshan Mountains
	王渊刚; 罗格平; 冯异星; 李超凡; 韩其飞; 范彬彬
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2013
卷号	30 期号:5 页码:913-918
中文摘要	利用全国第二次土壤普查数据,对天山北麓不同土地覆被类型下的土壤有机碳分布特征开展研究。结果表明:在0~100 cm土层天山北麓不同土地覆被类型的土壤碳密度差异显著,其均值处于3.65~35.73 kg.m~(-2)。不同土地覆被类型的土壤碳密度垂直分布差异明显,其中耕地表层(0~20 cm)土壤碳密度占其总量的32.2%,其相邻土层的土壤碳密度占其总量比例的差值较小,最大差值仅为8.1%;高山亚高山草甸、森林和隐域植被表层(0~20 cm)土壤碳密度占其总量的40%以上;荒漠植被、裸地和稀疏植被表层(0~20 cm)土壤碳密度占其总量的比例低于37%,其中裸地与稀疏植被最低,仅为25.4%,其相邻土层土壤碳密度占其总量比例的最大差值低于4.0%。
英文摘要	Soil carbon cycle is the focus and hotspot of the studies on global environment change. Relationship between the vertical distribution of soil organic carbon and its affecting factors was explored,especially in arid zone. In this study,the vertical distribution of soil organic carbon under different land cover types in northern piedmont of the Tianshan Mountains was studied based on the data of second national soil survey. The results showed that the mean soil organic carbon density in soil layer of 0 - 100 cm in depth varied from 3. 65 kg·m ~(- 2) in land with sparse vegetation to 35. 73 kg·m ~(- 2) in alpine and subalpine meadow. The vertical distribution of soil organic carbon density was quite different from different land cover types: the proportion of soil carbon density in soil layer of 0 - 20 cm in arable land accounted for 32. 2% of the total soil carbon density in topsoil layer of 1 m in thickness, it was higher than 40% in alpine and subalpine meadow,forest and intrazonal vegetation surface,and lower than 37% in desert vegetation and bare land and land with sparse vegetation,in which it was 25. 4% only in bare land and land with sparse vegetation. The average difference of soil carbon density between adjacent soil layers was lower than 8. 1% in arable land and lower than 4. 0% in bare land and land with sparse vegetation.
中文关键词	土地覆被 ; 土壤有机碳 ; 垂直分布 ; 天山北麓
英文关键词	land cover soil organic carbon vertical distribution northern piedmont of the Tianshan Mountains
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4947850
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/2XILL650/229595
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,冯异星,等. 天山北麓不同土地覆被下土壤有机碳垂直分布特征[J]. 中国科学院新疆生态与地理研究所,2013,30(5):913-918.
APA	王渊刚,罗格平,冯异星,李超凡,韩其飞,&范彬彬.(2013).天山北麓不同土地覆被下土壤有机碳垂直分布特征.干旱区研究,30(5),913-918.
MLA	王渊刚,et al."天山北麓不同土地覆被下土壤有机碳垂直分布特征".干旱区研究 30.5(2013):913-918.