干旱区生态环境知识资源中心(Arid): 敦煌西湖国家级自然保护区湿地土壤盐渍化特征研究

Arid

	敦煌西湖国家级自然保护区湿地土壤盐渍化特征研究
其他题名	Soil salinization characteristics of wetland in Dunhuang Xihu National Nature Reserve
	喻生波; 屈君霞
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2020
卷号	34 期号:6 页码:131-138
中文摘要	敦煌西湖国家级自然保护区位于甘肃省敦煌市西部,属内陆湿地和水域生态系统自然保护区,区内降水稀少、蒸发强烈,属典型的西北干旱荒漠区。保护区北部地下水浅埋区分布大面积的湿地,湿地区地下水以溶解性总固体大于3g/L的咸水为主,强烈的蒸发积盐作用形成了大面积盐渍土。文中针对湿地区土壤盐渍化状况,利用实测数据,对土壤盐渍化的空间分布特征及影响因素进行了研究,结果表明:盐渍土广泛分布于地下水位埋深小于3m的地带,地表盐渍化类型以氯盐渍土、亚硫酸盐渍土为主,盐分主要集中在表层0 ~ 30cm土壤内,垂直向下土壤含盐量速迅递减,盐分向下递减快慢与包气带的岩性关系密切。
英文摘要	Dunhuang Xihu National Nature Reserve is an inland wetland located in the west of Dunhuang City,Gansu Province,where precipitation is scarce and evaporation is intense,it is a typical arid desert area in northwest China.In the northern part of the reserve,shallow groundwater level distributes in a large area of wetland.The groundwater in the wetland area is mainly saline water in which the total dissolved solids are greater than 3g/L.The strong evaporation and salt accumulation formed a large area of saline soil.According to the status of soil salinization in wetland area,the spatial distribution characteristics and factors influencing soil salinization were studied by using measured data.The results showed that the saline soil in wetland area is widely distributed in the area where the groundwater level is less than 3 meters deep.The main types of salinization are chloride and chloride-sulfate.The salinity mainly concentrates in the 30 cm soil below the surface.The salinity of the lower soil decreases rapidly,and the decline of salinity is closely related to the lithology of the aerated zone.
中文关键词	湿地 ; 土壤 ; 盐渍化
英文关键词	wetland soil salinization
类型	Article
语种	中文
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:6749753
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336629
作者单位	喻生波, 甘肃省地质环境监测院;;甘肃省地下水工程及地热资源重点实验室, ;;甘肃省地下水工程及地热资源重点实验室, 兰州;;兰州, ;; 730050;;730050.; 屈君霞, 甘肃省地质环境监测院;;甘肃省地下水工程及地热资源重点实验室, ;;甘肃省地下水工程及地热资源重点实验室, 兰州;;兰州, ;; 730050;;730050.
推荐引用方式 GB/T 7714	喻生波,屈君霞. 敦煌西湖国家级自然保护区湿地土壤盐渍化特征研究[J],2020,34(6):131-138.
APA	喻生波,&屈君霞.(2020).敦煌西湖国家级自然保护区湿地土壤盐渍化特征研究.干旱区资源与环境,34(6),131-138.
MLA	喻生波,et al."敦煌西湖国家级自然保护区湿地土壤盐渍化特征研究".干旱区资源与环境 34.6(2020):131-138.