Modeling soil erosion by data-driven methods using limited input variables
نویسندگان
چکیده
منابع مشابه
modeling loss data by phase-type distribution
بیمه گران همیشه بابت خسارات بیمه نامه های تحت پوشش خود نگران بوده و روش هایی را جستجو می کنند که بتوانند داده های خسارات گذشته را با هدف اتخاذ یک تصمیم بهینه مدل بندی نمایند. در این پژوهش توزیع های فیزتایپ در مدل بندی داده های خسارات معرفی شده که شامل استنباط آماری مربوطه و استفاده از الگوریتم em در برآورد پارامترهای توزیع است. در پایان امکان استفاده از این توزیع در مدل بندی داده های گروه بندی ...
Comparison of Methods for Interpolating Soil Properties Using Limited Data
pendence between measurements at different locations. Methods currently in use include kriging, inverse-disSpatial interpolation methods are frequently used to characterize tance weighting, and thin-plate smoothing splines, and patterns in soil properties over various spatial scales provided that the data are abundant and spatially dependent. Establishing these one can use numerous approaches w...
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0022-1694/$ see front matter 2013 Elsevier B.V. All rights reserved. http://dx.doi.org/10.1016/j.jhydrol.2013.03.038 ⇑ Corresponding author. Address: Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China. Tel.: +86 010 82178973. E-mail address: [email protected] (L. Chen). 1 Address: Department of Geography, University of Minnesota-Duluth, 329A C...
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Soil erosion involves detachment and transport of soil particles from top soil layers, degrading soil quality and reducing the productivity of affected lands. Soil eroded from the upland catchment causes depletion of fertile agricultural land and the resulting sediment deposited at the river networks creates river morphological change and reservoir sedimentation problems. However, land managers...
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According to a UN Environment Programme survey, topsoil is eroding faster than it forms on about one third of the world’s cropland, causing an estimated 85 % of the world s land degradation from human activities. Erosion of soil, mainly by water, is also a problem in the Czech Republic where 54 % of arable land is endangered by water erosion. The topic of this article is to describe contemporar...
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ژورنال
عنوان ژورنال: Hydrology Research
سال: 2017
ISSN: 0029-1277,2224-7955
DOI: 10.2166/nh.2017.041