干旱区生态环境知识资源中心(Arid): 极端干旱区绿洲土壤盐分特征及其影响因素

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	极端干旱区绿洲土壤盐分特征及其影响因素
其他题名	Soil Salinity Characteristic and Its Determinant Factors at Different Soil Types in Oasis of Extreme Arid Region
	贡璐; 刘曾媛; 塔西甫拉提·特依拜
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2015
卷号	32 期号:4 页码:657-662
中文摘要	选择克里雅河流域于田绿洲为靶区,以灌漠土、棕漠土、盐土和风沙土4种不同土壤类型为对象,结合通径分析开展了土壤表层盐分特征及其影响因素研究。结果表明:4种土壤类型表层全盐含量以盐土最高(60.62 g· kg~(-1)),并且显著高于其他3种土壤类型(盐土> 棕漠土> 风沙土> 灌漠土); 各类型土壤盐分离子组成主要为SO_4~(2-) 、Cl~-和Na~+。地下水埋深是影响该区域各类型土壤表层全盐含量的主要因子; 此外,灌漠土与土壤水分和总碱度、棕漠土与土壤容重、风沙土与总碱度对各类型土壤表层全盐含量均有直接的正效应。
英文摘要	Salinization of irrigated lands is a common phenomenon wherever irrigation is practised under arid or semi-arid conditions. In arid land,salinization has affected the sustainability of irrigation systems often resulting in significant soil resources degradation. In this paper,a case study was carried out in Yutian Oasis of the Keriya River basin to reveal the characteristics of total salt in the topsoil of different soil types (irrigation desert soil,brown desert soil,saline soil and aeolian sandy soil),and the path coefficient between total salt and its affecting factors. The results indicated that the total salt content in the topsoil presented a trend of soil salt accumulation. The total salt content in the topsoil of saline-alkali land was the highest among all soil types,with the value reached up to 60.62 g·kg~(-1). The order of the total salt content in the topsoil was:saline soil > brown desert soil > aeolian sandy soil > irrigation desert soils. The main compositions of total salt content were SO_4~(2-),Cl~- and Na~+. Path analysis showed that among all factors the groundwater depth had the biggest contribution to salt accumulation in the topsoil, and the path coefficients between the total salt content of soil surface and the groundwater depth under different soil types were:-1.472,-1.018,-0.865 and-0.948. The soil moisture and HCO_3~- were more significant to the total salt content of oasis soil,soil bulk density to that of brown desert soil,and HCO_3~- to that of aeolian sandy soil.
中文关键词	绿洲 ; 土壤表层 ; 盐分含量 ; 通径分析 ; 克里雅河流域
英文关键词	oasis soil topsoil salinity content path analysis Keriya River Basin
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:5482774
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232725
作者单位	新疆大学资源与环境科学学院, 绿洲生态教育部重点实验室, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	贡璐,刘曾媛,塔西甫拉提·特依拜. 极端干旱区绿洲土壤盐分特征及其影响因素[J]. 新疆大学,2015,32(4):657-662.
APA	贡璐,刘曾媛,&塔西甫拉提·特依拜.(2015).极端干旱区绿洲土壤盐分特征及其影响因素.干旱区研究,32(4),657-662.
MLA	贡璐,et al."极端干旱区绿洲土壤盐分特征及其影响因素".干旱区研究 32.4(2015):657-662.