干旱区生态环境知识资源中心(Arid): 我国温带荒漠生物土壤结皮孔隙结构分布特征

Arid

	我国温带荒漠生物土壤结皮孔隙结构分布特征
其他题名	Pore Structure of Lichen Crusts in the Tengger Desert, China
	王新平; 李新荣; 潘颜霞; 王正宁; 全桂静
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2011
卷号	31 期号:1 页码:58-62
中文摘要	对原状生物土壤结皮孔隙结构,孔隙率及其垂直连通性进行室内微观扫描与计算机断层摄影成像分析.结果表明,生物土壤结皮团聚体特征明显,其孔隙率的增大主要是由大孔隙数量的增加而形成,同时,土壤孔隙连通性也随大孔隙数量的增加而增大,生物土壤结皮的发育导致表层土壤具有明显的极其复杂的土壤结构演化特征
英文摘要	X-ray micro-CT imaging coupled with 3D image analysis based on specific procedures for porous media have been applied to the analysis of the porosity structure of the lichen crusts at the Shapotou Desert Research and Experiment Station in the Tengger Desert, northern China. The results indicated that it will provide a very accurate quantification of the internal structure of lichen crusts due to stabilization of sand dune of different age. The general trend with the age of the lichen crusts is a reduction in volume of connected pores but an increase of the size of the remaining connected ones. The lichen crusts aggregates show a general increase of average pore network tortuosity reaching the maximum value with the age, and also exhibit a significant anisotropy of the tortuosity. In such cases the pore network has resulted more tortuous in vertical direction. Measurements on the pore space architecture have allowed to following from a new point of view the long term evolution of the surface stabilization process in the Tengger Desert region
中文关键词	生物土壤结皮 ; 孔隙率 ; 荒漠生态系统
英文关键词	biological soil crusts porosity desert ecosystem
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:4125368
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227480
作者单位	中国科学院寒区旱区环境与工程研究所沙坡头沙漠试验研究站, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	王新平,李新荣,潘颜霞,等. 我国温带荒漠生物土壤结皮孔隙结构分布特征[J]. 中国科学院西北生态环境资源研究院,2011,31(1):58-62.
APA	王新平,李新荣,潘颜霞,王正宁,&全桂静.(2011).我国温带荒漠生物土壤结皮孔隙结构分布特征.中国沙漠,31(1),58-62.
MLA	王新平,et al."我国温带荒漠生物土壤结皮孔隙结构分布特征".中国沙漠 31.1(2011):58-62.