干旱区生态环境知识资源中心(Arid): 荒漠绿洲过渡带林地开垦对土壤有效态微量元素的影响

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	荒漠绿洲过渡带林地开垦对土壤有效态微量元素的影响
其他题名	Desert oasis ecotone of forest land tillage effects on soil trace elements
	马晓飞; 楚新正
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2016
卷号	34 期号:4 页码:125-131
中文摘要	选择荒漠绿洲过渡带的林地开垦区为研究对象,运用地统计学和ArcGis空间分析工具相结合的方法,研究了林地开垦后土壤中有效态Fe、Cu、Zn和Mn含量的空间变异特征和丰缺状况。结果表明: 林地开垦后有效态Mn显著缺乏(P < 0. 05),平均值为4. 24 mg·kg~(-1),低于临界值的土壤占土壤总数的32. 25%,有效态Fe和Ze次之,分别有21. 82%和29. 36%的样品低于临界值,4种微量元素空间变异强度均> 25%,呈较明显的空间变异性; 半方差函数分析中,有效态Fe块金值最大,有效态Mn变程最小,4种有效态微量元素块金值与基台值的比值均< 25%,表明4种有效态微量元素空间依赖性均较强; 在空间结构中,4种有效态微量元素呈明显的片状和斑块状分布,有效态Cu主要分布于研究区西南和西北部,有效态Zn和Fe主要分布于中部,有效态Mn呈东西方向对称分布且东部含量大于西部; 在有效性评价中,单项指数(E_i)以有效态Mn最高,达2. 83,综合指数(E_c)以有效态Fe最高,达1. 27,有效态Cu的E_i值和E_c值均较低。
英文摘要	Selection of desert oasis ecotone of forest land reclamation area as the research object,using the method of statistical tools and ArcGis spatial analysis of combining research,spatial variability of woodland effective state in soil after reclamation of Fe,Cu,Zn and Mn content and the condition of abundance or deficiency. The results showed that: After the land reclamation,the available Mn was obviously insufficient (P < 0. 05). The average content was 4. 24 mg·kg~(-1). Soil with the Mn content which was lower than the critical value occupied 32. 25% of all the soil. Insufficiency degrees of available Fe and available Ze ranked the second place. Fe contents in 21. 82% of samples and Ze contents in 29. 36% of samples were lower than critical values. The spatial variation intensities of 4 microelements exceeded 25%,while these microelements showed obvious spatial variability; Analysis of semi variance function,nugget value maximum available Fe,available Mn variable range minimum,4 kinds of available trace elements nugget value base table value < 25%,showed that 4 kinds of available trace elements spatial dependence are strong; In the space structure,sheet and patchy distribution obviously 4 available trace elements are, available Cu mainly distributed in the study area in southwest and northwest,available Zn and Fe were mainly distributed in the middle available Mn in east-west direction,symmetrically distributed and Eastern content greater than western; According to availability evaluation results,available Mn had the highest single index (E_i),which reached up to 2. 83; available Fe had the highest comprehensive index (E_c) which reached up to 1. 27; and E_i and E_c values of available Cu were relatively low.
中文关键词	土壤微量元素 ; 荒漠绿洲过渡带 ; 林地开垦 ; 空间变异性 ; 有效性评价
英文关键词	soil trace element desert oasis ecotone reclamation of forest land spatial variability effectiveness evaluation
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:5759189
来源机构	新疆师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234203
作者单位	新疆师范大学地理科学与旅游学院, 新疆维吾尔自治区重点实验室新疆干旱区湖泊环境与资源实验室, 乌鲁木齐, 新疆 830054, 中国
推荐引用方式 GB/T 7714	马晓飞,楚新正. 荒漠绿洲过渡带林地开垦对土壤有效态微量元素的影响[J]. 新疆师范大学,2016,34(4):125-131.
APA	马晓飞,&楚新正.(2016).荒漠绿洲过渡带林地开垦对土壤有效态微量元素的影响.干旱地区农业研究,34(4),125-131.
MLA	马晓飞,et al."荒漠绿洲过渡带林地开垦对土壤有效态微量元素的影响".干旱地区农业研究 34.4(2016):125-131.