نتایج جستجو برای: drainage systems

تعداد نتایج: 1220919  

2015
Miklas Scholz

Urban water management has somewhat changed since the publication of The Sustainable Drainage System (SuDS) Manual in 2007 [1], transforming from building traditional sewers to implementing SuDS, which are part of the best management practice techniques used in the USA and seen as contributing to water-sensitive urban design in Australia. Most SuDS, such as infiltration trenches, swales, green ...

2012
Mohammad Valipour

One of the most important factors for appropriate performance of subsurface drainage systems is having adequate discharge for drains. For this purpose, knowledge about effect of drainage parameters change on drain discharge is essential in subsurface drainage systems. In this article, using change all of the drainage parameters by EnDrain software, changes of drains discharge has been investiga...

In the study, Drainmod model was used to compare measured water table depth fluctuations on the farm with those simulated by the model, also comparison of measured drainage outflow of the farm drains and model simulated was investigated. This study was made in a part of the Irrigation and Drainage Network of ABADAN Date palms. By statistical analysis of the measured and predicted water table de...

Journal: :مدیریت آب و آبیاری 0
حسن علی بخشی کارشناس ارشد، گروه مهندسی آب، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری- ایران علی شاهنظری استادیار، گروه مهندسی آب، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری- ایران رمضان طهماسبی استادیار، گروه مهندسی آب، مؤسسۀ آموزش عالی علمی کاربردی جهاد کشاورزی، تهران- ایران

in this research, the appropriateness of drainmod-n model was evaluated for the simulation of nitrate transport with subsurface drainage in paddy fields. during a canola growing season from november 2011 to april 2012, the nitrate concentration of drainage water and soil saturation extracts of two depths of 30 and 60 cm was measured in consolidated paddy fields of sari agricultural sciences and...

Journal: :تحقیقات مهندسی کشاورزی 0
حامد نوذری دانشجوی دکتری دانشکده آب و خاک پردیس کشاورزی و منابع طبیعی دانشگاه تهران عبدالمجید لیاقت دانشیار گروه آبیاری و آبادانی دانشکده آب و خاک پردیس کشاورزی و منابع طبیعی دانشگاه تهران مجید خیاط خلقی دانشیار گروه آبیاری و آبادانی دانشکده آب و خاک پردیس کشاورزی و منابع طبیعی دانشگاه تهران عسگر صدیقی کارشناس ارشد مهندسی صنایع مؤسسه پژوهش در مدیریت و برنامه ریزی انرژی

the system dynamics technique is an object-oriented approach that studies and manages complex feedback systems. its merits include the friendly and easy development and improvement of a model. it is also used as a decision tool for engineering problems. in this paper, the system dynamics technique was used to simulate the performance of a subsurface drainage system in an unsteady state. the mod...

Journal: :Water Science and Technology 2016

Journal: :E3S web of conferences 2021

The article evaluates the hydraulic processes in collectors which constructed irrigated fields. Illuminated washing under influence of flow velocity collector bed. In order to study basin, are covered results research conducted self-washing natural field conditions. Collector 2-K-4 Khavas district Syrdarya region was selected as object research. Given cases changes project parameters a result c...

2010
Jeffrey S. Strock Peter J.A. Kleinman Kevin W. King Jorge A. Delgado

l and drainage has been central to the development of North America since colonial times, with the first organized drainage efforts occurring as early as the 1600s (Evans et al. 1996). Drainage has been encouraged to improve public highways, reduce public health risks, promote increased crop yield and reduced yield variability, reduce surface runoff and erosion, and increase land value. Agricul...

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