Results 81 to 90 of about 7,599 (216)

Groundwater circulation model in the extremely arid area of Heiyingshan, Ejina

Shuiwen dizhi gongcheng dizhi
The Heiyingshan region, located in Ejina, Inner Mongolia, is characterized by an extremely arid climate and predominantly saline groundwater. This acute water scarcity poses substantial challenges to regional socio-economic development and ecological ...
Gaoxin XIAO, Mingming LUO, Dongshi QIN, Zehao ZHAO, Xiangyu PENG, Hongjie PAN, Xianjun XIE, Hong ZHOU   +7 more
doaj   +1 more source

The distribution characteristics and its influencing factors of rare earth elements in the karst geothermal water in Pingdingshan Coalfield

河南理工大学学报. 自然科学版
ObjectivesIn order to understand the indicative significance of the geochemical behavior of rare earth elements （REEs） in deep karst geothermal water of the coalfield in North China.MethodsTaking the Pingdingshan coalfield as an example， the distribution
LI Yanhe, WU Zhanhui, LI Jiexiang, YU Zhenzi, ZHANG Bo, WANG Xinyi   +5 more
doaj   +1 more source

On the Specifics of Formation of the Qualitative Characteristics of Waters and Sediments in the Lena River Delta [PDF]

Учёные записки Казанского университета: Серия Естественные науки, 2017
The paper considers the qualitative characteristics (chemical composition of waters and sediments, biological diversity) of the Lena runoff and their transformation as a result of the biogeochemical pro-cesses taking place in the delta region.
A.A. Chetverova, I.V. Fedorova, L.A. Frolova, G.R. Nigamatzyanova, T.V. Skorospekhova, A.A. Shadrina   +5 more
doaj  

Analysis of water quality parameters in foothill rivers in the context of the construction of dam reservoirs

Frontiers in Environmental Science
Backwater in retention reservoirs is potentially exposed to various contaminants, such as nutrients or heavy metals. Therefore, actions performed at the construction planning stage for such a facility are crucial; they are aimed at precisely evaluating ...
Maksymilian Połomski, Maksymilian Połomski, Mirosław Wiatkowski, Paweł Tomczyk   +3 more
doaj   +1 more source

Assessment of Groundwater Quality in the Semi-Arid Environment: Implications of Climate Change

Limnological Review
The hydrogeochemical properties and evolution of groundwater in the Essaouira syncline basin in northwestern Morocco were investigated in this study, with a total of 447 samples during different campaigns (April 2017, May 2018, March 2019, and July 2020).
Otman El Mountassir, Mohammed Bahir, Samir Hakimi, Turki kh. Faraj, Paula M. Carreira   +4 more
doaj   +1 more source

Investigating groundwater and surface water interactions using stable isotopes and hydrochemistry in the Notwane River Catchment, South East Botswana.

Journal of Hydrology: Regional Studies, 2022
L.T. Modie, P. Kenabatho, M. Stephens, T. Mosekiemang   +3 more
semanticscholar   +1 more source

Source analysis of nitrate pollution in a typical tributary of the upper Yellow River using a combined approach of stable isotopes and DOM fluorescence characteristics

River
Identifying the sources and characteristics of water pollution is essential for the protection and management of water environments. Nitrate (NO3−) is a key pollutant affecting water quality in the Qingshui River, a typical semi‐arid tributary in the ...
Bin Xu, Duo Zhang, Ziyang Wang, Jie Li, Zhiling Du, Longmian Wang, Qingqing Pang, Xiang Zhu, Lei Xie, Ran Tao, Huili Meng, Dongyan Pei, Fuquan Peng   +12 more
doaj   +1 more source

Ecological environmental effects of Yellow River irrigation revealed by isotope and ion hydrochemistry in the Yinchuan Plain, Northwest China

Ecological Indicators, 2022
G. Fan, Dezhong Zhang, Jianming Zhang, Zhuolun Li, W. Sang, Liqiang Zhao, Mengqun Xu   +6 more
semanticscholar   +1 more source

HYDROCHEMISTRY OF THE IRIMNOYE LAKE [PDF]

Успехи современного естествознания (Advances in Current Natural Sciences), 2018
G.S. Alimova, A.Yu. Tokareva
openaire   +1 more source

Hydrochemistry of springs, Najaf area, Iraq

, 2015
Springs exist in southwestern Iraq at Najaf area in southwestern desert (latitude 31º 00 ̄ – 32º 15 ̄ and longitude 43º 30 ̄ – 44º 30 ̄). Two aquifers exist in the area. The first is composed of recent deposits while the second aquifer is of Miocene deposits. The latter is important because it contains huge quantities of groundwater.
al-Dahan, Saadi, M., Hussain Hussain, Al-Ansari, Nadhir, Knutsson, Sven   +3 more
openaire   +1 more source