نتایج جستجو برای: water table depletion

تعداد نتایج: 717559  

Journal: Desert 2012
A. Salehpour Jam Gh.R. Zehtabian M.K. Kianian

Playas are low-lands which is considered to be the locations of accumulation of superficial and ground waters fromhigher elevations and these waters have different types of salts and various salinity level. Therefore, because of lack ofrainfall and fresh-water both for human and animal useage or even for plants, it is needed to apply proper methods toharvest fresh water from these saline-waters...

Journal: :Journal of Clinical Investigation 1961

Considering the fact that a large volume of iron reserve in the Sechahoon Iron Mine in Yazd Province has located under the water table, it is necessary to conduct a comprehensive study on water flow within the pit and its surroundings. The conceptual model of the aquifer was created using surface and underground geological information compared with water table data of the area of interest. In t...

2017
Guohua Zhang Gary Feng Xinhu Li Congbao Xie Xiaoyu Pi

Floods are of great concern as the global climate changes, and investigations of flood water infiltration and groundwater recharge are important for water resource management worldwide, especially under conditions of global climate changes. However, information on the relationship between the flood water and groundwater recharge is limited. The objective of this study was to determine the relat...

2016
Dorota Mirosław-Świątek Robert Michałowski Sylwia Szporak-Wasilewska Stefan Ignar Mateusz Grygoruk

In our study, we analyzed the combined standard uncertainty of water table slope assessment done using differential global positioning system (DGPS)-based measurements of water table elevation and distances between measurement locations. We compared and discussed uncertainties in water table slope assessments done in various hypothetical environments of lowland floodplains (water table slopes t...

Journal: :مدیریت آب و آبیاری 0
مینا عبدالهی دانشجوی کارشناسی ارشد زراعت، دانشکدۀ کشاورزی، دانشگاه شاهد، تهران – ایران سعیده ملکی فراهانی استادیار گروه زراعت و اصلاح نباتات، دانشکدۀ علوم کشاورزی دانشگاه شاهد، تهران - ایران محمد حسین فتوکیان عضو هیأت علمی مرکز تحقیقات گیاهان دارویی دانشگاه شاهد، تهران – ایران. دانشیار گروه زراعت و اصلاح نباتات، دانشکدۀ علوم کشاورزی دانشگاه شاهد، تهران - ایران. عبدالله حسن زاده قورت تپه استادیار گروه زیست شناسی، دانشکدۀ علوم، دانشگاه ارومیه، ارومیه – ایران.

to evaluate the effect of water stress on yield and water use efficiency (wue) of lallemantia sp, an experiment was conducted as split plot factorial in randomized complete block design with three replications in the field of medicinal plants research center of shahed university, tehran in 1390-91. the first factor was irrigation system including 40 and 60 percent depletion of available soil wa...

2010
Evan S. Kane Merritt R. Turetsky Jennifer W. Harden A. David McGuire James M. Waddington

[1] Boreal wetland carbon cycling is vulnerable to climate change in part because hydrology and the extent of frozen ground have strong influences on plant and microbial functions. We examined the response of dissolved organic carbon (DOC) and total dissolved nitrogen (TDN) across an experimental manipulation of water table position (both raised and lowered water table treatments) in a boreal‐r...

Journal: :Ground water 2014
L F Konikow S A Leake

A natural consequence of groundwater withdrawals is the removal of water from subsurface storage, but the overall rates and magnitude of groundwater depletion and capture relative to groundwater withdrawals (extraction or pumpage) have not previously been well characterized. This study assesses the partitioning of long-term cumulative withdrawal volumes into fractions derived from storage deple...

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