نتایج جستجو برای: groundwater resources manage
تعداد نتایج: 348354 فیلتر نتایج به سال:
according to the reports, industrial livestock activities have most pernicious and harmful impacts on water resources quality. livestock activities include cattle breeding, animals feeding, cleaning animals resting sites, the storage of livestock manure and even abandoned places for livestock keeping impose large negative effects on water quality. such impacts stems from high density or livesto...
Compared to surface water, groundwater resources are the primary source of water supply in arid and semi-arid regions of Iran, hence the importance of the management of these resources . In this regard, we assessed the effects of landuse changes on the qualitative and quantitative status of groundwater resources in Eshtehard region, Iran. Through processing and analyzing the satellite images, ...
Background & Aims of the Study: Heavy metals are one of the most important environmental pollutants which agricultural and industrial activities and urban development increased their entry rate to the underground resources. This study aimed to investigate the concentration of chromium, nickel and manganese in groundwater resources in Asadabad plain....
Good water management is literally vital for the arid and semi-arid regions of the planet. Yet good water management requires multidisciplinary expertise, since one must consider climatic, hydrological, economical and social aspects to make balanced decisions on water usage. We here present SegHidro, a grid portal designed to foster scientific, technical and operational collaboration, as to imp...
Dong Liu, Miao Yu, Nan Sun, Ying Qi (School of Water Conservancy & Civil Engineering,Northeast Agricultural University, Harbin Heilongjiang 150030,China) Abstract:In the course of analyzing and forecasting regional groundwater depth, its variation process complexity was ignored in the past, so that it was difficult to realize scientific management of groundwater resources. Aiming at the aforesa...
background & aims of the study: heavy metals are one of the most important environmental pollutants which agricultural and industrial activities and urban development increased their entry rate to the underground resources. this study aimed to investigate the concentration of chromium, nickel and manganese in groundwater resources in asadabad plain. materials & methods: sampling of groundwater ...
MODFLOW is a groundwater modeling program. It can be compiled and remedied according to the practical applications. Because of its structure and fixed data format, MODFLOW can be integrated with Geographic Information Systems (GIS) technology for water resource management. The North China Plain (NCP), which is the politic, economic and cultural center of China, is facing with water resources sh...
Groundwater resources are becoming the primary factor for maintaining life in arid areas. Understanding land use/cover change and its effect on groundwater depth would enhance land use and groundwater management for typical desert-oasis transition zones. Reduction of groundwater recharge and increase of groundwater exploitation during 1985 and 2010 led to the decrease of groundwater depth in Li...
In order to evaluate the groundwater resources and aquifer system of the Jilin urban area (JUA), a groundwater numerical flow model was established by using the groundwater modeling system based on data from 190 boreholes. River stages were interpolated to control the groundwater flow field. The input parameters such as hydraulic conductivity and specific yield were based on data from 260 pumpi...
Our ability to identify and manage riparian sites for groundwater nitrate (NOAh) removal is limited by uncertainty surrounding the relative importance of plant uptake vs. microbially mediated removal processes. Microcosm studies often demonstrate negligible transformation rates in the subsoil of riparian forests, even in situations where groundwater well networks showed substantial groundwater ...
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