نتایج جستجو برای: soil loss

تعداد نتایج: 619566  

Vulnerability of soil separates to detachment by water is described as soil erodibility by Universal Soil Loss Equation which can be affected by land use change. In this study it was attempted to quantify the changes of Universal Soil Loss Equation K-factor and its soil driving factors in three land uses including rangeland, rainfed farming, and orchards in Babolrood watershed, northern Iran. S...

Journal: :ecopersia 0
vahed berdi sheikh associate prof. department of watershed and arid land management, gorgan university of agricultural science and natural resources, gorgan, iran masoud jafari shalamzari ph.d candidate, department of watershed and arid land management, gorgan university of agricultural science and natural resources, gorgan, iran asghar farajollahi ph.d candidate, department of watershed and arid land management, gorgan university of agricultural science and natural resources, gorgan, iran pouria fazli m.sc graduate, department of watershed and arid land management, gorgan university of agricultural science and natural resources, gorgan, iran

the runoff generation and soil erosion in the kechik watershed, golestan province, was assessed, using a designed and constructed portable rainfall simulator. treatments were applied on different land-uses, slopes and aspects as the most influential factors. results showed that land-use significantly affected runoff generation (13.35 l, 6.9 l, and 4.12 l, respectively for agriculture, forest an...

The first step to controlling soil loss, is estimating of soil erosion amount. Universal soil loss Equation is One of the ways is widely used to estimate erosion, in which the absence of long term data. Effective force in the development of various forms of erosion is the power erosivity of runoff and rainfall and are expressed in erosivity index. This study aimed to evaluate the erosivity Inde...

2014
Wei Shangguan Peng Gong Lu Liang YongJiu Dai Keli Zhang

Rapid land-use change in recent decades in China and its impact on terrestrial biodiversity have been widely studied, particularly at local and regional scales. However, the effect of land-use change on the diversity of soils that support the terrestrial biological system has rarely been studied. Here, we report the first effort to assess the impact of land-use change on soil diversity for the ...

2002
UENO Takashi

Abstract This study dealt with the reduction of soil loss from variously managed grass filter strips. Slope plots under a rainfall simulator were employed in this study. In order to investigate the effect of grass filter strips on the reduction of soil loss, the amount of soil supplied was compared with soil loss in each plot. The reduction of soil loss from cut weeds was similar to that from n...

2002
Liu Baoyuan

A model was developed for estimating average annual soil loss by water on hillslope for cropland, which is called Chines Soil Loss Equation (CSLE). Six factors causing soil loss were evaluated based on soil loss data collected from experiment stations covering most regions of China and modified to the scale of Chinese unit plot defined. The model uses an empirical multiplicative equation, A=RKL...

Ecosystem services are benefits that people obtain from ecosystems. Soil retention is one of the most important ecosystem services. The capacity of ecosystem to maintain soil can be estimated by quantifying this services. In this study, version 3.0.0 of the InVEST software was used to map this ecosystem service in the eastern part of Gorgan-Rud watershed. The InVEST model employs the Universal ...

Journal: :International journal of environmental research and public health 2016
Yujin Li Juying Jiao Zhijie Wang Binting Cao Yanhong Wei Shu Hu

BACKGROUND The Loess Plateau, an ecologically vulnerable region, has long been suffering from serious soil erosion. Revegetation has been implemented to control soil erosion and improve ecosystems in the Loess Plateau region through a series of ecological recovery programs. However, the increasing atmospheric CO₂ as a result of human intervention is affecting the climate by global warming, resu...

2014
Kartic Kumar

Soil erosion is a serious environmental problem in Kothagiri Taluk. Many studies have been carried out to map shifting cultivation and areas susceptible to soil erosion. Mostly, estimated soil loss is taken as the basis to classify the level of soil loss susceptibility of area. The Revised Universal Soil Loss Equation (RUSLE) function is a commonly used erosion model for this purpose in Kothagi...

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