干旱区生态环境知识资源中心(Arid): Using 222Rn temporal and spatial distributions to estimate the groundwater discharge rate and associated nutrient fluxes into high salinity lakes in Badain Jaran Desert, Northwest China

Arid

DOI	10.1016/j.scitotenv.2022.159359
	Using 222Rn temporal and spatial distributions to estimate the groundwater discharge rate and associated nutrient fluxes into high salinity lakes in Badain Jaran Desert, Northwest China
	Su, Xianbao; Lu, Chenao; Li, Meng; Wang, Yipeng; Wang, Naiang
通讯作者	Wang, NA
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	857
英文摘要	Groundwater is the main source of water and salt recharge for to lakes in arid regions. Quantifying the groundwater discharge and its nutrient input is important in the evolution of lake environments in the Badain Jaran Desert (BJD), Northwest China. In this study, ten BJD lakes were sampled for 222Rn in April and September 2021, and the 222Rn mass balance model was used to quantify the groundwater discharge rates and derived nutrient fluxes to these lakes. The results showed that the 222Rn activity and the groundwater recharge rate of lake water both present a positively correlated with lake water depth. The hot points of high 222Rn activity in the lake water were consistent with the locations of groundwater discharge areas. According to the 222Rn temporal and spatial distributions, the mean groundwater recharge rates for the ten lakes in April and September were 5.4 +/- 0.6 and 7.7 +/- 1 mm/d, respectively, and the annual mean groundwater discharge rates varied between 1.1 +/- 0.2 and 14.6 +/- 1.6 mm/d, with a mean of 7 +/- 0.9 mm/d. Given that all the perennial lakes in the BJD have the same groundwater recharge rate as the mean recharge rate of the ten studied lakes, the annual mean groundwater recharge amount received by the lakes in the entire BJD is (5.6 +/- 0.7) x 107 m3/a. According to the groundwater recharge amount, the inputs of dissolved inorganic nitrogen, dissolved inorganic phosphorus, dissolved inorganic silicon, total nitrogen, and total phosphorus to the BJD lakes from groundwater were (4.7 +/- 0.6) x 105, (3.8 +/- 0.5) x 104, (7.9 +/- 1) x 105, (7.2 +/- 0.9) x 105, (2.5 +/- 0.3) x 104 kg/a, respectively. This study provides a reference for quantifying of groundwater discharge rates into salt lakes in other arid regions.
英文关键词	High -salinity lakes Groundwater discharge Nutrients Badain Jaran Desert
类型	Article ; Proceedings Paper
语种	英语
收录类别	SCI-E ; CPCI-S
WOS记录号	WOS:000875703500012
WOS关键词	RADON MEASUREMENTS ; FRESH GROUNDWATER ; RECHARGE SOURCES ; STABLE-ISOTOPES ; WATER-BALANCE ; COASTAL ZONE ; TOLO HARBOR ; RN-222 ; RADIUM ; TEMPERATURE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398472
推荐引用方式 GB/T 7714	Su, Xianbao,Lu, Chenao,Li, Meng,et al. Using 222Rn temporal and spatial distributions to estimate the groundwater discharge rate and associated nutrient fluxes into high salinity lakes in Badain Jaran Desert, Northwest China[J],2023,857.
APA	Su, Xianbao,Lu, Chenao,Li, Meng,Wang, Yipeng,&Wang, Naiang.(2023).Using 222Rn temporal and spatial distributions to estimate the groundwater discharge rate and associated nutrient fluxes into high salinity lakes in Badain Jaran Desert, Northwest China.SCIENCE OF THE TOTAL ENVIRONMENT,857.
MLA	Su, Xianbao,et al."Using 222Rn temporal and spatial distributions to estimate the groundwater discharge rate and associated nutrient fluxes into high salinity lakes in Badain Jaran Desert, Northwest China".SCIENCE OF THE TOTAL ENVIRONMENT 857(2023).