干旱区生态环境知识资源中心(Arid): 甘肃北山沙枣园地区土壤表层盐分特征研究

Arid

	甘肃北山沙枣园地区土壤表层盐分特征研究
其他题名	Analysis on characteristics of soil salinity in Shazaoyuan site of Gansu Beishan region
	李杰彪; 苏锐; 周志超; 季瑞利; 张明
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2016
卷号	30 期号:9 页码:115-120
中文摘要	以我国高放废物处置库预选场址之一的甘肃北山沙枣园地区为地质背景,旨在探索极旱荒漠地区土壤盐分特征研究方法与理论,从而为高放废物处置库选址和场址性能评价服务。文中采用地质统计学和聚类分析方法研究了沙枣园预选场址土壤表层盐分特征。结果表明:研究区土壤阴离子聚积以SO_4~(2-)、Cl~-为主,阳离子聚积以K~++Na~+、Ca~(2+)为主;土壤盐分总量空间分布特征为岩体周边第四纪沉积物中大于岩体内沟谷沉积物中;区内土壤盐分的变异主要取决于Ca~(2+)、Cl~-、SO_4~(2-)这3种盐分离子;土壤盐分积累主要以Ca SO_4、Na Cl、KCl形式存在;该区土壤盐分空间相关性强,各盐分离子空间自相关变化尺度相似,变程大都集中在45007000m。
英文摘要	In this research,Shazaoyuan in Beishan region of Gansu,where is the preselected site of high - level radioactive waste ( HLW) disposal repository in China,was taken as geological background to explore the method and theory of soil salt characteristics in extremely arid desert region,and then to service for the site selecting and performance evaluation of disposal repository. In the present work,the characteristics of soil salinity in Shazaoyuan were analyzed by the methods of geo - statistics and clustering analysis. The results show that the predominant anions are SO_4~(2 -),Cl~- while the predominant cations are K~+ + Na~+ ,Ca~(2 +) ; the spatial distribution characteristics of soil total salts show that the quaternary unconsolidated sediments round the rock bodies is significantly greater than the gully sediments in the rock bodies; variation of soil salinity in the study area mainly depends upon Ca~(2 +) ,Cl~- and SO_4~(2 -) ; the main components of soil salinity are CaSO_4,NaCl and KCl; soil salinity indicators have strong spatial correlation,the spatial change scale of autocorrelation is similar,the ranges mostly concentrate within 4500 ~ 7000 m.
中文关键词	极旱荒漠 ; 高放废物处置库 ; 土壤盐分 ; 沙枣园预选场址
英文关键词	extremely arid desert region disposal repository of high level radioactive waste soil salinity Shazaoyuan preselected site
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:5813803
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234387
作者单位	核工业北京地质研究院, 中核集团高放废物地质处置评价技术重点实验室, 北京 100029, 中国
推荐引用方式 GB/T 7714	李杰彪,苏锐,周志超,等. 甘肃北山沙枣园地区土壤表层盐分特征研究[J],2016,30(9):115-120.
APA	李杰彪,苏锐,周志超,季瑞利,&张明.(2016).甘肃北山沙枣园地区土壤表层盐分特征研究.干旱区资源与环境,30(9),115-120.
MLA	李杰彪,et al."甘肃北山沙枣园地区土壤表层盐分特征研究".干旱区资源与环境 30.9(2016):115-120.