نتایج جستجو برای: rainfall simulator
تعداد نتایج: 62650 فیلتر نتایج به سال:
Abstract. We developed an advanced-design programmable rainfall simulator (RS) to simulate a moving storm condition. The RS consists of automated nozzle control system coupled with pressure regulator mechanism for operating range 50 180 kPa at drop height 2000 mm above the soil flume surface. Additionally, mobile application was regulate all valves. Near natural conditions were simulated varyin...
The movement of faecal pathogens from land to surface and ground-water are of great interest because of the public and livestock health implications. Knowledge of canopy structure and how it might be managed to help mitigate nutrient and pathogen movement in pasture is needed to create management practices that balance livestock production with environmental benefits. An experiment was conducte...
Extended abstract 1- Introduction The Soil surface characteristics have significant effects on the erosion process. The wide areas of watershed soil surfaces are covered with considerable amounts of rocks and pebbles. Surface rock fragments, resulting in water connectivity, change during the erosion process. Rock fragments on the soil surface may increase the infiltration and reduce soil loss...
Soil erosion in vineyards has to be considered as an environmental concern as it depletes soil fertility and produces damages in the fields and downstream. High soil and water losses decrease soil quality, and subsequently, can reduce the quality of the grapes and wine. However, in specialized journals of viticulture and enology, soil erosion studies are not present. This paper surveys the soil...
Permeable pavements and similar stormwater control devices have not been exploited in the UK, in part because their adoption has been hindered by a lack of detailed knowledge of their hydrological performance. This paper describes a research programme that produced detailed information on the hydrological behaviour of a car park surface. The study involved the construction of full-scale permeab...
We aim to model and simulate the evolution of the surface structure of a cultivated soil surface during rainfall. The surface degradation is mainly the consequence of the creation and the transport of soil fragments, which are caused by the circulation of water, rainfall and runoff in particular. Our first intent was to use Cellular Automata (CA), but these processes cannot easily be modelled i...
splash erosion recognized as first stage of erosion process that results of bombing soil surface with rain drop. falling rain drops to soil surface resulted moving soil particles and destructing soil structure. at this research effects of various pam rate (0, 2, 4 and 6 kg.ha) on splash erosion on three soil textuere clay, silty clay and sandy clay loam was tested. simulations were done with ra...
Rainfall simulation experiments were. conducted in the Fifteenmile Creek drainage basin of north-central Wyoming to identify nonpoint sources of suspended sediment, A portable drop-forming rainfall simulator was chosen for reasons of l o w cost and low water requirements. drops from a height of 7.5 feet ( 2 . 3 meters) with an intensity of 3 inches ( 7 . 6 cm) per hour. The simulated storms wer...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید