نتایج جستجو برای: gully erosion mapping using overlay index
تعداد نتایج: 3802357 فیلتر نتایج به سال:
Soil physical quality (SPQ) is a limiting factor affecting crop production. However, the impact of gully erosion on SPQ index S, defined by Dexter as inflection point soil water retention curve (SWRC), remains unclear, especially when considering different latitudinal regions. This study aimed to apply Dexter’s S-theory evaluate distribution S in black soils adjacent various positions and inves...
Soil Erosion is the detachment, transportation and deposition of soil sediment from one place to another. This has led loss lives infrastructure in many parts Nigeria. properties play a role it vulnerability extent erosion. study aims evaluate selected physical as they interact cause erosion area. The was conducted 2012 gully site relation its potential erodibility channel. done by collection v...
The purpose of this Special Issue is to provide an opportunity for researchers publish novel results that could help landowners, land-users, farmers, politicians, and other representatives our global society protect, and, if possible, improve the quality quantity precious soil resources. Authors were encouraged submit papers related new ways mapping, showing more detailed input data, modeling r...
Dasht Yari plain is nearly 580,000 hectares which is under engraving gully erosion and unfortunately the gully development rate is increased in the recent decades. Satellite images may provide quick, extensive, and valuable information for the interpretation of morphometric characterstics of gully erosion expansion due to having attributes such as time series, relatively low cost, large coverag...
the aim of this study is prospecting of iron and manganese in the balvard 1:100000 sheet which is situated in sanandaj - sirjan structural zone utilizing index overlay and fuzzy logic methods in the gis. in this study, the layers for integration, alterations, geological, geophysical, geochemical and structural data based on stream sediments, airborne magnetometeric and remote sensing studies. b...
Gully erosion is well-developed in the Jinsha dry-hot valley region, which has caused serious soil losses. volume regarded as an effective indicator that can reflect development intensity of gully erosion, and evolutionary processes gullies be predicted based on dynamic variation volume. Establishing prediction model essential to determine accurately conveniently. Therefore, this work, empirica...
Gully erosion is widespread in central China's ecologically fragile loess plateau. However, research on the monitoring and evaluation of large-scale scarce. Here, we collected 16 pairs Sentinel-1A images from rainy season, spanning April 5-October 26, 2019, subsidence then quantified its results can indirectly reflect intensity largest plateau China, Dongzhiyuan tableland, using small baseline ...
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