干旱区生态环境知识资源中心(Arid): 乌兰布和沙漠北部地下水资源的环境同位素探讨

Arid

	乌兰布和沙漠北部地下水资源的环境同位素探讨
其他题名	Environmental isotope study of the groundwater resources in the North Wulan-Buhe desert, Inner Mongolia
	顾慰祖; 陆家驹; 谢民; 张汝智
来源期刊	水科学进展
ISSN	1001-6791
出版年	2002
卷号	13 期号:3 页码:326-332
中文摘要	工作范围在乌兰布和沙漠北部，面积共约4 200 km~2。年平均降水量85～140 mm，由西南向东递增，降水同位素组成deltaD～delta~(18)O恰与Craig线一致，并与阿拉善地区相同。测得地下水中同位素含量范围，delta~(18)O为-7.4～12.1，氚为0～190TU, ~(14)C为1.7～97pMC。由地下水同位素组成区别出与降水线平等或相交的6种类型。从所有地下水水点，以及可能有补给关系的其它水点的各类同位素关系，包括delta~(18)O，T，delta~(13)C和pMC，识别出两类承压水的各3个补给源和潜水的3个补给源，并区别出一组氚含量极低的潜水，对不同位置的承压水和潜水，由其同位素关系估算出了各补给源的组成和变幅。
英文摘要	The study area of about 4 200 km~2 includes mainly the north part of the Wulan-Buhe Desert which is situated to the west of the Yellow River in inner Mongolia, with an annual mean precipitation of 140 mm to 85 mm from its east to southwest. There are 68 sampling sites for groundwaters. In the relation deltaD = Sdelta~(18)O + d, S = 8 and d = 10 are get for the precipitation, it is just the same as the WMWL. For the groudwaters, the most delta~(18)O values lie in the range of -7.4 to -12.1, the tritium content ranges from 0-190TU while the ~(14)C values of 1.7-97 pMC are found. In comparison with the precipitation line, six kinds of groundwater with same or different A and d are found. From the isotopic relationships, four recharge sources are identified for the confined groundwater, i.e., the paleogroundwater, the spring from fissued rocks of Lang Shan mountainous area situated to the northwest of the Desert, the percolation from the Yellow River, and the deep infiltration water from sand dunes which is formed by precipitation with special mechanism. Three source waters of phreatic groundwater are identified, too. They are the recent precipitation, the early episodic precipitation recharge and the water from sand dunes. The contribution of individual recharge source to the confined/phreatic groundwater at different places is estimated by using the mixing model.
中文关键词	地下水 ; 水资源 ; 环境同位素 ; 干旱地区 ; 沙漠 ; 内蒙古
英文关键词	groundwater water resources environmental isotope arid region desert inner Mongolia
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:953227
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203420
作者单位	顾慰祖, 南京水利科学研究院, 南京, 江苏 210029, 中国.; 陆家驹, 南京水利科学研究院, 南京, 江苏 210029, 中国.; 谢民, 南京水利科学研究院, 南京, 江苏 210029, 中国.; 张汝智, 河套灌溉管理总局, 磴口, 内蒙古 015200, 中国.
推荐引用方式 GB/T 7714	顾慰祖,陆家驹,谢民,等. 乌兰布和沙漠北部地下水资源的环境同位素探讨[J],2002,13(3):326-332.
APA	顾慰祖,陆家驹,谢民,&张汝智.(2002).乌兰布和沙漠北部地下水资源的环境同位素探讨.水科学进展,13(3),326-332.
MLA	顾慰祖,et al."乌兰布和沙漠北部地下水资源的环境同位素探讨".水科学进展 13.3(2002):326-332.