نتایج جستجو برای: coastal saline area

تعداد نتایج: 676621  

Journal: :مجله پژوهش های اکوفیزیولوژی گیاهان زراعی 0

abstract     the major constraints of agricultural production in the south western coastal areas of bangladesh are soil and water salinity of varying degrees, lack of fresh water for irrigation, slow soil drying pattern which are being augmented further due to climate change, requires suitable options of farming systems and component technologies. the major constraints and potentials of agricul...

2016
Hui Gao Jintong Liu A. Egrinya Eneji Lipu Han Limei Tan

Managing the rapidly changing saline-alkali land under cultivation in the coastal areas of China is important not only for mitigating the negative impacts of such land on the environment, but also for ensuring long-term sustainability of agriculture. In this light, setting up rapid monitoring systems to assist decision-making in developing sustainable management plans is therefore an absolute n...

In the coastal region reduction of groundwater is one of the most important problems. Excessive exploitation from groundwater is one of the main effective reasons that will lead to the progress of saline water, especially in seasons with low precipitation. Therefore, at the current research, identification of suitable areas for artificial groundwater recharge in the Tajan plain (with an area of...

Journal: :Water 2021

Insufficiency of potable water is acute in southwest (SW) coastal areas Bangladesh. The local population ignores the depth to saltwater/freshwater interface causing many unsuccessful waters wells drilling. In this context, a combined use borehole logs, geophysical well vertical electrical soundings (VES), resistivity tomography (ERT) and conductivity (EC) sampled was performed identify depths p...

Journal: :international journal of marine science and engineering 0
a. biati department of environmental science, science and research branch, islamic azad university, tehran, iran h. nikoomaram department of environmental management, science and research branch, islamic azad university, tehran, iran a. r. karbassi department of environmental engineering, graduate faculty of the environment, university of tehran, iran

since heavy metals are considered as one of the major pollutants threatening, the main goal of this study was to bring out the concentrations of pb, zn and mn in the surface sediments off bushehr in the persian gulf. for this purpose, after collection of samples, the concentrations of the three metals in surface sediments were measured through the atomic absorption. the results were compared wi...

2007
K. P. Chen

Local groundwater in coastal aquifers in Shenzhen has experienced heavy pumping since the 1980s when it began to expand very quickly from a fishing village to a modern city. Meanwhile, large-scale land reclamation was carried out to meet the needs of various urbanization projects. In this paper we analyzed the groundwater from a coastal aquifer system in Shenzhen and examined the evolution of g...

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