干旱区生态环境知识资源中心(Arid): 砒砂岩对毛乌素沙地风成沙的改良应用研究

Arid

	砒砂岩对毛乌素沙地风成沙的改良应用研究
其他题名	The improvement effects of softrock on sandy soil in Mu Us sandy land
	张卫华; 韩霁昌; 王欢元; 杜宜春; 童伟
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2015
卷号	29 期号:10 页码:122-127
中文摘要	文中探究了砒砂岩粉末与风成沙混合后所形成复配土的理化特性、土地生产力以及对毛乌素沙地水土流失的影响。结果表明:当砒砂岩:风成沙的比例在1:2-1:5时,相对于风成沙,复配土的结构、质地、毛管孔隙度和饱和导水率均得到了显著的改善。复配土具有安全、无害的特性,重金属内梅罗综合污染指数仅为0.314。复配土同时具有较高的生产力,玉米和马铃薯小区试验的最高产量分别可以达到8.75和35.24t·hm~(-2)。在休闲期,复配土形成的表层土壤结皮、冻盖层等使其具有显著的固沙效果。砒砂岩在毛乌素沙地土地整理工程中的应用对沙化土地的综合整治和砒砂岩区水土流失的治理具有重要的理论价值和实践意义。
英文摘要	The physical and chemical properties,land productivity of softrock and sand compound soil,and the influence on soil erosion in Mu Us sandy land were studied in order to explore the application prospect that softrock could be used in Mu Us sandy land consolidation engineering. Results showed that compared with the sandy soil,compound soil structure was significantly improved. When the ratio of softrock to sand was changed from 1: 2 to 1: 5,soil texture had changed to sandy loam from sandy soil,capillary porosity increased from 26.33% to 30.13%,and saturated hydraulic conductivity decreased from 1022.4 to 70.6cm·d~(- 1). Additionally,compound soil was safe and harmless,its comprehensive pollution index was only 0.314. Compound soil also had high land productivity,the highest yield of maize and potato could reach 8.75t·hm ~(- 2) and 35.24t·hm ~(- 2). During fallow period,compound soil had a significant sand - fixation effect with the role of soil crust and freeze cover layer. The utilization of softrock in the land consolidation engineering in Mu Us sandy land had important theoretical value and practical significance on the treatment of softrock soil and water loss,and the comprehensive improvement of desertification of Mu Us sandy land.
中文关键词	土壤 ; 砒砂岩 ; 复配土 ; 土地整理 ; 毛乌素沙地 ; 沙地改良
英文关键词	soil softrock compound soil land consolidation Mu Us sandy land
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ECONOMICS POLICY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5513635
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232809
作者单位	陕西省土地工程建设集团有限责任公司, 陕西省土地整治工程技术研究中心;;国土资源部退化及未利用土地整治工程重点实验室, 西安, 陕西 710075, 中国
推荐引用方式 GB/T 7714	张卫华,韩霁昌,王欢元,等. 砒砂岩对毛乌素沙地风成沙的改良应用研究[J],2015,29(10):122-127.
APA	张卫华,韩霁昌,王欢元,杜宜春,&童伟.(2015).砒砂岩对毛乌素沙地风成沙的改良应用研究.干旱区资源与环境,29(10),122-127.
MLA	张卫华,et al."砒砂岩对毛乌素沙地风成沙的改良应用研究".干旱区资源与环境 29.10(2015):122-127.