干旱区生态环境知识资源中心(Arid): 小流域土壤有机碳含量的空间变异特征研究以内蒙古赤峰市黄花甸子流域为例

Arid

	小流域土壤有机碳含量的空间变异特征研究以内蒙古赤峰市黄花甸子流域为例
其他题名	Study on Spatial Variations of Soil Organic Carbon in Small WatershedTaking Huanghuadianzi Watershed as An Example
	李龙 1; 吴丽芝 1; 姚云峰 1; 秦富仓 2; 郭月峰 1; 焦素香 3; 高云波 3
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2013
卷号	20 期号:5 页码:18-23
中文摘要	选择内蒙古赤峰市敖汉旗黄花甸子流域为研究对象,运用地统计学和ArcGIS空间分析工具相结合的方法研究流域内土壤有机碳含量的空间变异特征以及地形因子对其的影响,旨在为半干旱区土壤碳库的研究提供参考。结果表明:研究区表层(020 cm)与全剖面(0100 cm)土壤有机碳平均含量分别为7.54 g/kg和6.19 g/kg,二者块金基台比均较小,为22.77%~28.36%,说明流域土壤有机碳的空间变异主要是由结构性因素引起的,随机因素对其变异影响较小。地形因子对土壤有机碳的影响表现为:土壤有机碳含量随坡度的增加而降低;不同坡向土壤有机碳含量由高到低呈现出阴坡〉半阴坡〉半阳坡〉阳坡的明显分布规律;土壤有机碳含量随海拔增加呈现先增加后降低的抛物线走势。
英文摘要	This paper selected Huanghuadianzi watershed in Aohan of Chifeng, Inner Mongolia as the research site, and the spatial variations of soil organic carbon contents were analyzed through the combination of Geostatistical and ArcGIS in order to provide reference for the study on soil carbon pool in semi-arid area. The results showed that the overall mean of soil organic carbon content in the surface layer (020 cm) and the whole soil profile (0100 cm) were 7.54 g/kg and 6.19 g/kg, respectively, and values of nugget-to-sill were 22.77%~28.36%, indicationg that spatial variability of soil organic carbon pool was mainly caused by structural factors, and the random factors had little effects. The effects of topographic factors on soil organic carbon showed that soil organic carbon content decreased with the increase of slope, soil organic carbon contents presented an obvious distribution law such as shady slope>semi-shady slope>semi-sunny slope>sunny slope, and soil organic carbon content increased at first and then decreased with a parabolic trend altitude. This study gave a scientific basis for the distribution and the system management and reasonable evaluation of soil organic carbon.
中文关键词	土壤有机碳 ; 空间变异 ; 地形因子 ; 地统计
英文关键词	soil organic carbon spatial variations topographic geostatistics
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:4978935
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230206
作者单位	1.内蒙古农业大学生态环境学院, 呼和浩特, 内蒙古 010018, 中国; 2.内蒙古农业大学林学院, 呼和浩特, 内蒙古 010018, 中国; 3.内蒙古赤峰市敖汉旗水利局, 赤峰, 内蒙古 024300, 中国
推荐引用方式 GB/T 7714	李龙,吴丽芝,姚云峰,等. 小流域土壤有机碳含量的空间变异特征研究以内蒙古赤峰市黄花甸子流域为例[J]. 内蒙古农业大学,2013,20(5):18-23.
APA	李龙.,吴丽芝.,姚云峰.,秦富仓.,郭月峰.,...&高云波.(2013).小流域土壤有机碳含量的空间变异特征研究以内蒙古赤峰市黄花甸子流域为例.水土保持研究,20(5),18-23.
MLA	李龙,et al."小流域土壤有机碳含量的空间变异特征研究以内蒙古赤峰市黄花甸子流域为例".水土保持研究 20.5(2013):18-23.