نتایج جستجو برای: groundwater inflow

تعداد نتایج: 37200  

Journal: :INFORMASI 2011

Journal: :The Biochemical journal 1994
L A Berven B P Hughes G J Barritt

The roles of heterotrimeric GTP-binding regulatory proteins (G-proteins) and inositol polyphosphates in the mechanism by which vasopressin stimulates Ca2+ inflow in hepatocytes were investigated by using single cells loaded with fura2 by microinjection. Vasopressin-stimulated Ca2+ inflow was mimicked by microinjection of guanosine 5'-[gamma-thio]triphosphate (GTP[S]) or guanosine 5'-[beta gamma...

Journal: :Environmental science & technology 2011
Rosalie van Zelm Aafke M Schipper Michiel Rombouts Judith Snepvangers Mark A J Huijbregts

An operational method to evaluate the environmental impacts associated with groundwater use is currently lacking in life cycle assessment (LCA). This paper outlines a method to calculate characterization factors that address the effects of groundwater extraction on the species richness of terrestrial vegetation. Characterization factors (CF) were derived for The Netherlands and consist of a fat...

2016
Qiang Fu Dong Liu Tianxiao Li Song Cui Yuxiang Hu Jun Xu

The accurate and reliable prediction of groundwater depth is the basis of the sustainable utilization of regional groundwater resources. However, the complexity of the prediction has been ignored in previous studies of regional groundwater depth system analysis and prediction, making it difficult to realize the scientific management of groundwater resources. To address this defect, taking compl...

Journal: :Environmental science and pollution research international 2013
Ying Ouyang Jia-En Zhang Prem Parajuli

Characterization of groundwater quality allows the evaluation of groundwater pollution and provides information for better management of groundwater resources. This study characterized the shallow groundwater quality and its spatial and seasonal variations in the Lower St. Johns River Basin, Florida, USA, under agricultural, forest, wastewater, and residential land uses using field measurements...

Journal: :Water 2023

The performance of most urban drainage systems is adversely affected by unintended connections groundwater and surface water, often denoted as inflow infiltration (I&I). Various methods exist to locate characterise these effects. Yet, it remains difficult quantify them accurately, especially in terms spatial distribution over a larger area. One the reasons for this lack sufficient high-qual...

2017
M. A. Hoque W. G. Burgess K. M. Ahmed

Groundwater arsenic (As) presents a public health risk of great magnitude in densely populated Asian delta regions, most acutely in the Bengal Basin (West Bengal, India and Bangladesh). Research has focussed on the sources, mobilization, and heterogeneity of groundwater As, but a consistent explanation of As distribution from local to basin scale remains elusive. We show for the Bengal Aquifer ...

Journal: :The Science of the total environment 2012
Alina Premrov Catherine E Coxon Richard Hackett Laura Kirwan Karl G Richards

Application of over-winter green cover (e.g. cover crops) as a measure for reducing nitrate losses from tillage land has been frequently investigated, especially in the unsaturated zone. Monitoring of groundwater is less common in these studies. Studies on groundwater responses to different land treatments can be challenging because they can be influenced by various conditions, such as recharge...

2004
V. F. Bense H. Kooi

[1] In the present paper it is shown how profiles consisting of closely spaced ( 10 m) temperature measurements at shallow depth, obtained at several instances during one season, provide a detailed record of lateral variations in vertical groundwater flow. This is illustrated by a field study around the Peel Boundary Fault zone that cuts through the unconsolidated, siliciclastic deposits that o...

Journal: :Ground water 2010
Bryant C Jurgens Miranda S Fram Kenneth Belitz Karen R Burow Matthew K Landon

Uranium (U) concentrations in groundwater in several parts of the eastern San Joaquin Valley, California, have exceeded federal and state drinking water standards during the last 20 years. The San Joaquin Valley is located within the Central Valley of California and is one of the most productive agricultural areas in the world. Increased irrigation and pumping associated with agricultural and u...

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