نتایج جستجو برای: five variables depth to water table

تعداد نتایج: 10913427  

Journal: :مدیریت آب و آبیاری 0
حمید کاردان مقدم دانشجوی دکتری منابع آب، پردیس ابوریحان، دانشگاه تهران عباس روزبهانی استادیار گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران

the planning of water resources is based on the volume of water extracted from the aquifer and accurate estimate of this volume considerably helps to development. in this study, the bayesian networks model using continues and clustering structures was used to simulate the groundwater level of birjand aquifer. bayesian networks was calibrated with five input variables of aquifer recharge, water ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده جغرافیا 1392

the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...

Journal: :Global Ecology and Biogeography 2022

Aim Water availability is the major driver of tropical forest structure and dynamics. Most research has focused on impacts climatic water availability, whereas remarkably little known about influence table depth excess soil processes. Nevertheless, given that plants take up from soil, supply are likely to be modulated by conditions. Location Lowland Amazonian forests. Time period 1971–2019. Met...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

like any other learning activity, translation is a problem solving activity which involves executing parallel cognitive processes. the ability to think about these higher processes, plan, organize, monitor and evaluate the most influential executive cognitive processes is what flavell (1975) called “metacognition” which encompasses raising awareness of mental processes as well as using effectiv...

2009
Stefania Tamea Francesco Laio Luca Ridolfi Paolo D’Odorico Ignacio Rodriguez-Iturbe

[1] In groundwater-dependent ecosystems, interactions between rainfall, water table fluctuations, and vegetation are exerted through the soil water content. The dynamics of soil moisture, in fact, are strongly coupled to fluctuations of the water table and, together, they control the overall ecosystem dynamics. We propose here a simple process-based stochastic model for the study of soil moistu...

ژورنال: علوم آب و خاک 2013
بیژن نظری, , حامد ابراهیمیان, , محمود اکبری, , مسعود پارسی نژاد , ,

This study was conducted on subsurface drainage network under operation in Behshahr. DRAINMOD model was used to simulate drainage system using measured data in 2006. The model was evaluated to estimate soil hydraulic conductivity by comparing the measured and predicted values of water table depth and drain discharge for different values of hydraulic conductivity. The results of this method were...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1389

abstract the current study sets out 1) to investigate the strategic needs of iranian efl learners in reading literary and non-literary texts; 2) to shed some light on the differences between reading literary and non-literary texts; and 3) to specify the differences in the interaction of participants with texts while reading two literary subgenres ( i.e., short story and literary essays). to ...

ژورنال: علوم آب و خاک 2018

Soil depth is a major soil characteristic commonly used in distributed hydrological modeling in order to present watershed subsurface attributes. It strongly affects water infiltration and accordingly runoff generation, subsurface moisture storage, vertical and lateral moisture movement, saturation thickness and plant root depth in the soil. The objective of this study is to develop a statistic...

2006
Barry Glaz Robert A. Gilbert

Sugarcane (Saccharum spp.) is routinely exposed to periodic floods and highwater tables in Florida’s EvergladesAgriculturalArea. Learning sugarcane responses to these conditions will help improve yields. This study evaluated the effects of constant water-table depths, periodic floods, and N on cane and sucrose yields of two sugarcane cultivars. In 2001 and 2002, two foliar N and four water trea...

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