نتایج جستجو برای: irrigation and drainage projects

تعداد نتایج: 16848934  

Arash Mahjobi, Kazem Torfi Mohammad Albaji

Koot - Hamoodi are two units from seventh units out of 1&2 irrigation and drainage network in Dasht-Azadeghan project where was past about 7 years from their operation. Results of the studies were showed before construction of network; ground water table in considered of this area was high and more than 90% of these lands were high and too high in saline and alkaline. After construction and ope...

Journal: :IEEE Trans. Geoscience and Remote Sensing 1998
Thomas J. Jackson Thomas J. Schmugge Peggy O'Neill Marc Parlange

Experiments were conducted using truck-based microwave radiometers operating at 1.41(L-band) and 2.65-GHz (S-band) horizontal polarization to observe small plots during and following sprinkler irrigation. These experiments were conducted on a sandy loam soil in 1994 and a silt loam in 1995. Sandy loam soils typically have higher infiltration capabilities than clays, and in our studies, we were ...

2013
Dagnenet Sultan

Irrigation land suitability assessment and mapping play an imperative role for sustainable utilization of scarce physical land resources. The objectives of this study were to prepare spatial data base of physical land resources for irrigated agriculture and to assess land suitability for irrigation and developing suitable area map for the study area. The study was conducted at Fogera catchment,...

نادری خوراسگانی, مهدی , کریمی, احمد ,

  This research was carried out to study the impacts of geomorphologic characteristics of claypan on land use and land degradation. Databank of the study area was constructed and digital terrain model of claypan was prepared. By using GIS techniques spatial distributions of the subsurface drainage network, sediment transportation index and wetness index were calculated. The results indicate tha...

Journal: :Jurnal arsip rekayasa sipil dan perencanaan 2023

The implementation of construction projects in Aceh province since the beginning 2020 until now has been impacted during 2019 coronavirus disease (Covid-19) pandemic. One significant impacts is disruption supply chain, which hinders projects. Hence, it necessary to conduct investigations determine dominant factors and affected by Covid-19 pandemic province. audited are projects, roads, bridges,...

2009
Beau J. Freeman

This paper presents the need, value, and concept of flexible irrigation water supply systems that can deliver water with flexibility in frequency, rate, and duration under the control of the farmer at the point of application using a limited rate arranged-demand or other schedule. It introduces the needed terminology including "congestion"-how much reserve time and capacity is required to assur...

Journal: :Nan fang yi ke da xue xue bao = Journal of Southern Medical University 2015
Wen-Hao Zhang Qi Wu Jun Ma Jia-Han Wang

OBJECTIVE To investigate the effect of closed vacuum drainage combined with heparin irrigation in the treatment of scald burns with seawater immersion in rabbits. METHODS Twenty New Zealand rabbits were subjected to deep partial-thickness scald burns in 4 regions on the bilateral skin of the spine. The wounds were managed with common dressing (group A), common dressing after seawater immersio...

ژورنال: علوم آب و خاک 2015
سلطانیان, سمانه , عابدی کوپایی, جهانگیر , قیصری, مهدی ,

Lack of knowledge on soil geotechnical properties can cause many problems in the construction and maintenance of irrigation and drainage networks. In general, all of unconventional soils such as gypsiferous soils can cause some problems to irrigation canals. Some studies have been conducted on a variety of problematic soils, but still there is a need for more research activities and field studi...

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