Results 21 to 30 of about 23,743 (257)

Depth and Well Type Related to Groundwater Microbiological Contamination [PDF]

open access: yesInternational Journal of Environmental Research and Public Health, 2016
Use of groundwater from private wells in households has increased considerably, owing to a better cost/benefit ratio than that of water provided by local utilities for a fee. However, this water is usually untreated, which makes it a vehicle for diseases. Thus, monitoring this water is necessary to ensure its integrity and quality. We aimed to evaluate
Nayara Maran   +5 more
openaire   +2 more sources

Groundwater recharge and age‐depth profiles of intensively exploited groundwater resources in northwest India [PDF]

open access: yesGeophysical Research Letters, 2015
AbstractIntensive irrigation in northwest India has led to growing concerns over the sustainability of current and future groundwater abstraction. Environmental tracers and measurements of groundwater residence times can help quantify the renewal processes.
Lapworth, D.J.   +5 more
openaire   +2 more sources

Dynamics of Groundwater in Changwu Loess Tableland and Its Determiants

open access: yesGuan'gai paishui xuebao, 2022
【Objective】 Groundwater is the predominant water resource for agricultural and other sectors in the loess tableland in northwestern China. Understanding its response to management and environmental changes is important to elucidate the mechanisms ...
SUN Jineng   +4 more
doaj   +1 more source

Redistribution of hydrogen and oxygen isotopes in groundwater flow systems: From altitude effect to depth effect

open access: yesShuiwen dizhi gongcheng dizhi, 2023
The hydrogen and oxygen isotopes in precipitation have the altitude effect, and they participate in the groundwater circulation after the infiltration of precipitation.
Pengfei HAN   +3 more
doaj   +1 more source

Characterising variations in the salinity of deep groundwater systems: A case study from Great Britain (GB)

open access: yesJournal of Hydrology: Regional Studies, 2020
Study region: The study region is Great Britain (GB), a small non-continental island landmass in North West Europe Study focus: Data for Total Dissolved Solids (TDS) from groundwater samples can be used to characterise regional-scale variations in the ...
J.P. Bloomfield   +4 more
doaj   +1 more source

Groundwater Depth and Nitrogen Application Amount Jointly Regulate the Water and Residual Soil Nitrate Accumulation in Agricultural Soil Profile

open access: yesAgronomy, 2023
Despite the known influence of groundwater conditions and nitrogen application on crop growth and the soil microenvironment, less information is available on the influence of groundwater depth and nitrogen application amount on the movement and ...
Fangfang Bai   +4 more
doaj   +1 more source

Study on the Relationship Between Groundwater Depth and Land Use Change Based on Indicator Kriging Method

open access: yesRenmin Zhujiang, 2021
It is very important to study the temporal and spatial variation of groundwater depth for the rational development and utilization of groundwater resources,the promotion of crop growth and the prevention and control of land salinization.Taking Jiefangzha
XU Yueyue, SU Tao, LEI Bo, WANG Lei
doaj  

Transpiration of Eucalyptus woodlands across a natural gradient of depth-to-groundwater [PDF]

open access: yesTree Physiology, 2017
Water resources and their management present social, economic and environmental challenges, with demand for human consumptive, industrial and environmental uses increasing globally. However, environmental water requirements, that is, the allocation of water to the maintenance of ecosystem health, are often neglected or poorly quantified.
Zolfaghar, Sepideh   +8 more
openaire   +3 more sources

Spatial modeling of groundwater depth fluctuations using co-active neuro-fuzzy inference system (CANFIS) and geographic information system (GIS)

open access: yesApplied Water Science, 2022
Groundwater drawdown and reduction of groundwater resources are serious problems in the water supply. Unfortunately, sufficient and accurate data on the groundwater depth fluctuations values are not available in all plains of the world.
Vahid Gholami
doaj   +1 more source

The Relationship Between the Distribution of Water and Salt Elements in Arid Irrigation Areas and Soil Salination Evolution

open access: yesFrontiers in Earth Science, 2022
Long periods of surface water irrigation and water and salt movement have slow and continuous influence on the evolution of soil salinization in a closed hydrogeological unit of arid irrigation areas.
Haidong Lian   +10 more
doaj   +1 more source

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