نتایج جستجو برای: rill
تعداد نتایج: 252 فیلتر نتایج به سال:
Some methodologies were compared in providing erosion maps of surface, rill and gully and erosion features, in research which took place in the Varamin sub-basin, north-east Tehran, Iran. A photomorphic unit map was produced from processed satellite images, and four other maps were prepared by the integration of different data layers, including slope, plant cover, geology, land use, rocks erodi...
Principle Investigators: Georg von Freymann and Martin Wegener CFN-Financed Scientists: C. Becker (3/4 BAT IIa, 4 months), Markus Deubel (3/4 BAT IIa, 9 months), Martin Hermatschweiler (3/4 BAT IIa, 14.5 months), Nina Meinzer (3/4 BAT IIa, 1 month), Daniel Meisel (3/4 BAT IIa, 5.5 months), Michael S. Rill (3/4 BAT IIa, 32 months), Isabelle Staude (3/4 BAT IIa, 14 months) On average, this corres...
Agroforestry is a dynamic, ecologically based, natural resource management system that, through the integration of trees in farm and rangeland, diversifies and sustains production for increased social, economic and environmental benefits (Leakey, 1996). Apart from the social and cultural advantages of growing trees, recreational benefits for human being, as well as improvement in wildlife, ther...
Inflasi menjadi salah satu masalah yang krusial bagi perekonomian suatu negara. dapat terjadi ketika nilai mata uang mengalami penurunan terhadap barang atau jasa. Sektor inflasi pun beragam untuk setiap kurun waktunya. Pemodelan tingkat pada kota dipandang perlu memberikan informasi perkiraan laju di masa akan datang. Prediksi dibuat dengan dilakukannya perbandingan beberapa metode peramalan y...
To cite: Boattini M, Costa N, Murinello N, et al. BMJ Case Reports Published online: 14 December 2012 doi:10.1136/bcr-2012007270 DESCRIPTION A 68-year-old man with type 2 diabetes mellitus, hypertension and history of laryngeal cancer surgery with tracheostomy was operated on in 1993 and right chest rib chondrosarcoma surgery was performed in 1997. The patient presented with fever and acute rig...
Sediment transport capacity in rills is an important parameter for erosion modeling on hillslopes. It difficult to measure, especially at gentle slopes with limited rill length. In this study, a special flume variable slope gradients upper and lower sections was implemented measure the sediment capacity. The section higher gradient generates faster water flow that could scout more feed rill. re...
A rational calculation of the rill detachment rate (RDR) and an accurate simulation process are important for determining model parameters hillslope erosion. Here, we found a difference between RDRs calculated using different methods that cannot be ignored. This study proposes modified numerical method based on dataset measured sediment concentrations along length over saturated loess soil slop...
mass. The energy for these processes is provided, basically, by the weight of the mixture of water and sediment According to theory, the rate of detachment of soil particles in and the downslope gradient of the flow. Studies related rills is reduced as a first-order function of the amount of sediment to the mechanics of rill erosion have shown that rates load in the flow. The first objective of...
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