نتایج جستجو برای: gully erosion mapping using overlay index

تعداد نتایج: 3802357  

Attaollah Kavian Farhad Nourmohammadه Javad Mirzaei Karim Soleimani Mahmoud Habibnejhad Roshan Taher Fatollahه

Erosion is one of the important social-economic problems in Iraniancatchments that have been posed by surface water vastness and runoff production. So, thestudy of water resources, soil erosion and effective factors is of high importance. Gullyerosion also extends in many parts of Iran and its study particularly in viewpoint ofsediment yield is therefore very important and should be taken into ...

Journal: :New Zealand Journal of Geology and Geophysics 1964

Journal: :Geoderma 2023

The study and mapping of evidences soil piping using non-destructive techniques is a key issue in quantitative geomorphology. This paper attempts to combine Aerial systems (Unmanned Vehicles (UAV)), physical chemical attributes, near-surface geophysical survey tools (ground penetrating radar electrical resistivity tomography) provide comprehensive understanding geometric features arid semi-arid...

Journal: :Journal of Soil and Water Conservation 2023

In recent years, gully erosion has caused soil loss, land degradation, and a large sediment yield in the Mollisols northeastern China, threatening agricultural development national food security. Moreover, prediction of remains great challenge owing to difficulty determining suitable environmental indicators identifying best models for predicting prone areas. Therefore, objective this study was...

Journal: :desert 2005
gh. r. zehtabian h. ahmadi h. khosravi a. rafiei emam

desertification process as a great problem affects most of the countries in the world specially developing countries. this process has a high rate in arid and semi-arid countries such as iran. the main objective of this research was to investigate land degradation status and desertification mapping of kashan area. different studies have been carried out in the world in order to assess desertifi...

2008
YUAN Lifeng

It is of great significance to dynamically simulate and forecast the development and evolutionary of soil erosion process. Traditionally, most of soil erosion models are essentially steady-state models. Thus, they have limitations at real-time simulation on the initiation and development of soil erosion process. Cellular Automata (CA), with a “from down to up” dynamic modeling framework, is cap...

Journal: :desert 2008
h. ahmadi a. a. mohammadi j. ghodousi a. salajegheh

gully erosion is one of the most complicated and destructive forms of water erosion. in order to prevent this erosion, the important factors advancing gully head must be recognized. nowadays, several models have been proposed in measuring gully head advancement and identifying the severity of erosion. these models must be calibrated for each country to see whether they are applicable or not. so...

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