干旱区生态环境知识资源中心(Arid): 黑河中游绿洲农田土壤微量元素含量的空间分布特征

Arid

	黑河中游绿洲农田土壤微量元素含量的空间分布特征
其他题名	Spatial distribution characteristics of trace elements contents in oasis cropland soil in middle reaches of Heihe River
	臧振峰; 南忠仁; 王胜利; 李程程; 颜斌
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2013
卷号	27 期号:5 页码:190-195
中文摘要	采用地统计学与GIS相结合的方法,对黑河中游绿洲农田土壤中Cu、Zn、Ni、Fe、Mn和Co含量的空间变异特征、分布规律进行了研究。结果表明:研究区土壤Zn、Fe、Mn的含量平均值低于全国平均值,而Cu、Ni、Co的平均值高于全国平均值,6种微量元素均具有中等程度变异,且各微量元素样本均符合正态分布;土壤Cu、Ni含量的最佳半方差拟合模型为高斯模型,Zn、Fe和Mn为球状模型,Co为指数模型;土壤Cu、Zn、Ni、Fe、Co具有中等程度的空间相关性,土壤Mn具有强烈的空间相关性;6种微量元素含量的变程大小顺序为Cu、Zn、Mn>Fe>Co>Ni;土壤Cu、Zn、Fe、Mn含量的空间分布特征相似,即总体上为由东南向西北降低,Ni、Co含量呈现斑块状分布。研究区土壤中微量元素含量除Mn主要受自然因素影响外,其它各微量元素均受到自然因素和人为因素的双重影响。
英文摘要	The method of geostatistics combined with GIS was applied to study the variability characteristics,distribution laws of Cu、Zn、Ni、Fe、Mn and Co contents in oasis cropland soil of the middle Reaches of HeiHe River. The results showed that the mean contents of Zn、Fe、Mn were below the national average,while the mean contents of Cu、Ni、Co were over the national average,the six trace elements were all with moderate variability levels, and also obeyed the normal distribution; Best theoretical semivariogram models of trace elements were the Gaussian model for Cu and Ni,the spherical model for Zn、Fe and Mn,and the exponential model for Co; The contents of Cu、Zn、Ni、Fe and Co in soil had moderate spatial correlation,the content of Mn had a strong spatial correlation; The variation range of the six trace elements contents followed the order Cu、Zn、Mn > Fe > Co > Ni; The spatial distribution of Cu、Zn、Fe、Mn contents were similar,i. e.,a decreasing trend was found from southeast to northwest,the contents of Ni、Co presented patchy distribution. In addition,the content of Mn in the study area was mainly affected by natural factors,the contents of other trace elements were affected by natural and artificial factors.
中文关键词	黑河中游 ; 绿洲农田土壤 ; 微量元素 ; 空间变异 ; 空间分布
英文关键词	the middle reaches of Heihe River oasis cropland soil trace elements spatial variability spatial distribution
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:4776808
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229636
作者单位	兰州大学资源环境学院, 西部环境教育部重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	臧振峰,南忠仁,王胜利,等. 黑河中游绿洲农田土壤微量元素含量的空间分布特征[J]. 兰州大学,2013,27(5):190-195.
APA	臧振峰,南忠仁,王胜利,李程程,&颜斌.(2013).黑河中游绿洲农田土壤微量元素含量的空间分布特征.干旱区资源与环境,27(5),190-195.
MLA	臧振峰,et al."黑河中游绿洲农田土壤微量元素含量的空间分布特征".干旱区资源与环境 27.5(2013):190-195.