نتایج جستجو برای: wind erosion

تعداد نتایج: 112342  

2014
Yongsheng Yang Chongfeng Bu Xingmin Mu Hongbo Shao Kankan Zhang

To better understand the effects of biological soil crusts (BSCs) on soil moisture and wind erosion and study the necessity and feasibility of disturbance of BSCs in the Mu Us sandland, the effects of four treatments, including moss-dominated crusts alone, Artemisia ordosica alone, bare sand, and Artemisia ordosica combined with moss-dominated crusts, on rainwater infiltration, soil moisture, a...

Journal: :desert 2006
m. r. rajabi f. rohani m. r. ekhtessassi n. ghazanfarpoor

the majority of iran’s area is covered by arid and semiarid climates. in these areas, wind causes more erosion compared to water. therefore, determination of wind characteristics especially its velocity is very important. one of the simplest methods that can supply researchers with the origin of wind erosion in the shortest time is synthesizing sand rose model and interpretation of aerial photo...

Journal: :مرتع و آبخیزداری 0
راضیه صفی یاری دانشجوی کارشناسی ارشد مهندسی علوم خاک، دانشگاه تهران فریدون سرمدیان استاد دانشکدة مهندسی علوم خاک، دانشگاه تهران احمد حیدری دانشیار دانشکدة مهندسی علوم خاک، دانشگاه تهران شیرین یونسی دانشجوی کارشناسی ارشد مهندسی علوم خاک، دانشگاه تهران

evaluation soil erosion is an important matter to protecting it from destroying in future due to the excessive use of the inherent capacity of soil and also improper management. therefore, in this study land vulnerability related to water and wind erosion of abyek for crops and pasture land has been evaluated, using raizal model as one of the microleis sub-models. morphological and physical and...

ژورنال: علوم آب و خاک 2020

The occurrence of wind erosion and the spread of dust particles can be regarded as one of the most important and threatening environmental factors. Climate change and the frequency of droughts have played an important role in exacerbating or weakening these events. The primary objective of the present study was to investigate the trend of changes in four important climatic elements (precipitati...

2013
Ted M. Zobeck Matthew Baddock Scott Van Pelt John Tatarko Veronica Acosta-Martinez

Histosols (also known as organic soils, mucks, or peats) are soils that are dominated by organic matter (OM > 20%) in half or more of the upper 80 cm. Forty two states have a total of 21 million ha of Histosols in the United States. These soils, when intensively cropped, are subject to wind erosion resulting in loss of crop productivity and degradation of soil, air, and water quality. Estimatin...

ژورنال: علوم آب و خاک 2015
میرمحمدصادقی, مسعود, جعفری شالکوهی, عطا , روشن ضمیر, محمدعلی , وفائیان, محمود ,

A laboratory research program was arranged to study the effect of different factors influencing the stability of fine soils against wind action. For this purpose, a laboratory wind tunnel was stabilized and several soil samples were examined by putting the sample trays inside the wind tunnel for different rates of wind velocities. The tray for soil samples was 20´30 cm2 with the depth of 5 cm, ...

Journal: :Journal of Glaciology 1977

Journal: Desert 2006
F. Rohani M. Ekhtessassi M. Rajabi, N. Ghazanfarpoor

The majority of Iran’s area is covered by arid and semiarid climates. In these areas, wind causes more erosion compared to water. Therefore, determination of wind characteristics especially its velocity is very important. One of the simplest methods that can supply researchers with the origin of wind erosion in the shortest time is synthesizing sand rose model and interpretation of aerial photo...

Journal: Desert 2019
M. Bazgir M. Mirhasani M. Tavakoli N. Rostami,

Wind erosion is considered as one of the main processes of land degradation in different parts of the world. Among the most effective ways to control wind erosion is to cover land surface with natural vegetation area. In this study, 3 replica soil samples were collected, at a depth of 0-3 cm, from various land uses in Dehloran, Ilam Province, Iran. Physical and chemical characteristics of soil ...

Introduction: Wind erosion is a phenomenon that causes severe environmental changes in arid and semi-arid climates. As surface soil texture is very effective in soil erodibility, identifying soil erodibility index is important and efficient. Mismanagement greatly contributes to the development of wind erosion. The velocity that makes the first particles of soil move from the surface is called t...

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