نتایج جستجو برای: eroded soils
تعداد نتایج: 51655 فیلتر نتایج به سال:
Erosion significantly decreases the depth of a soil, nutrients available for plants, organic matter and, consequently, productivity edaphic environment. Due to above considerations, objective this study was evaluate, through various properties, quality two eroded soils, one by water and other mining activity, amended with biosolids. The both soils estimated selection minimum set data means prin...
Soil erosion by water causes the loss of soil mineral particles and organic carbon (SOC). For determining effectiveness conservation measures on arable land, rainfall simulations are regularly carried out in field trials Czech Republic. The objective this study was to analyse a dataset from 82 bare fallow soils, containing information slope inclination, texture, bulk density, SOC, with respect ...
Recent experimental studies focusing on the morphological properties of surfaces eroded by ion-bombardment report the observation of self-affine fractal surfaces, while others provide evidence about the development of a periodic ripple structure. To explain these discrepancies we derive a stochastic growth equation that describes the evolution of surfaces eroded by ion bombardment. The coeffici...
For the study of field wind erosion and the design and evaluation of wind erosion control techniques, detailed observations of soil particle transport and vertical destribution of eroded soil particles are needed. The objectives of this study were: 1) To describe one device for soil transport particle measurement, i. e. the BSNE sediment catcher and 2) To assess vertical distribution of wind–er...
Cities have been consisted of many eroded textures. The renovation designs have been provided due to many problems the residents face with.� These designs are not always successful. Lack of specific pattern or enough experience regarding the intervention in the eroded textures and no suitable and enough attention to the public cooperation are some of the reasons of these designs failure. Theref...
A Physically—Based Geometry Model for Transport Distance Estimation of Rainfall-Eroded Soil Sediment
Estimations of rainfall-induced soil erosion are mostly derived from the weight of sediment measured in natural runoff. The transport distance of eroded soil is important for evaluating landscape evolution but is difficult to estimate, mainly because it cannot be linked directly to the eroded sediment weight. The volume of eroded soil is easier to calculate visually using popular imaging tools,...
Runoff, soil loss, sediment concentration, and particle size distribution of sediment eroded by runoff events were measured between 1976 and 2000 from 5 small agricultural watersheds on Vertisols at ICRISAT Center, Patancheru, India. The effects of storm size and land management system on total soil loss and size distribution of sediment during runoff are discussed. At the beginning of runoff e...
About one-third of the earth’s land area consists acidic soils. The rhizotoxic Al3+ is one primary constraints associated with low soil pH. Various Amaranthus species are important components weed flora in tea plantations on acid soils north Iran. In this study, four (A. blitoides, A. retroflexus, cruentus, and tricolor) were grown under hydroponic conditions total Al concentrations 0, 20, 50, ...
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