Arid
Soil organic carbon contents in arid and semiarid regions of peninsular Spain
Hontoria, C; Rodriguez-Murillo, JC; Saa, A
会议名称International Symposium on Sustainable Use and Management of Soils in Arid and Semiarid Regions
会议日期SEP 22-26, 2002
会议地点Cartagena, SPAIN
英文摘要

Information about original soil organic carbon stocks and their controlling factors is needed in order to better estimate the potential of carbon sequestration in Mediterranean regions. About 1315 surface horizons located in peninsular Spain were studied to determine soil organic carbon (SOC) content and its relation with climate and other variables such as land use, altitude, UTM coordinates, slope gradient and soil texture. A simple climatic factor, the ratio of annual mean precipitation to annual mean temperature, was used to distinguish dry from humid areas. Climate and land use were the main factors controlling SOC content. The highest SOC content values corresponded to scrubland (5.2%) and the lowest to cultivated soils (1.1%). Climate variables alone explained 35% of SOC variability, their influence being greater in the humid than in dry regions. In general, soil and site variables played a minor role, but the influence of these variables oil SOC in the driest areas is worthy of note, while no correlation was found in humid region,;.


英文关键词soil organic carbon content arid and semi-arid regions humid regions peninsular Spain
来源出版物SUSTAINABLE USE AND MANAGEMENT OF SOILS - ARID AND SEMIARID REGIONS
ISSN0722-0723
出版年2005
卷号36
页码275-280
ISBN3-923381-49-2
出版者CATENA VERLAG
类型Proceedings Paper
语种英语
国家Spain
收录类别CPCI-S
WOS记录号WOS:000235640900028
WOS类目Ecology ; Geology ; Soil Science
WOS研究方向Environmental Sciences & Ecology ; Geology ; Agriculture
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/295704
作者单位(1)Univ Politecn Madrid, Escuela Tecn Super Ingn Agron, Dpto Edafol, Madrid 28040, Spain
推荐引用方式
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Hontoria, C,Rodriguez-Murillo, JC,Saa, A. Soil organic carbon contents in arid and semiarid regions of peninsular Spain[C]:CATENA VERLAG,2005:275-280.
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