International confernce on loess research , 2017-10-08

Title : ( Comparison the conservational management practices on wind erosion in Tabas region )

Authors: mahsa memarzadeh , Hojat Emami , Alireza Karimi ,

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Abstract

Introduction: Wind erosion is a serious problem in many parts of the world, especially in arid and semi-arid regions. Prevention and protection operations against the wind erosion are appropriate practices to manage the dry lands and deserts. Material and methods: The objective of this research was to study the effect of mechanical and biological management practices on the amount of wind sediment in Tal-Hamid area, which is located in Tabas (Khorasan Razavi Province, Iran). For this purpose, after each conservational factor, the sediment trap was established. For controlling the wind erosion, conservational practices including mechanical management practices (Creating fence and sand channel) and biological management practices (brushwood vegetation plant i.e. Hammada Salicornica, three and four rows of Haloxylon, and native plant i.e. Stipagrostis). Results and Discussion: The results of data analysis showed that the highest amount of wind sediments at a height of 0.5 meter from the soil surface was related to biological management practices (average sediment of 179.187 gram) and the lowest value with an average of 60.185 gram related to mechanical management practices (fence and sand channel) in winter season. In spring season, the highest amount of wind sediments at a height of 0.5 meter from the soil surface was assigned to biological management practices with average sediment of 1150 gram and the lowest content with an average of 152 gram, related to mechanical management practices (fence and sand channel). In winter season, at a height of 1.5 meters from the soil surface, the highest amount of wind sediment was obtained as a result of mechanical management practices (fence) with an average of 239.49 gram and the least amount with an average of 42.55 gram was observed from mechanical management practices (fence and sand channel). In spring season, the highest amount of wind sediment at a height of 1.5 meters from the soil surface was related to biological management practices with average sediment of 1500 gram and the lowest content with an average of 90.75 gram related to mechanical management practices (fence and sand channel). It seems that the panted seedlings could not well grow and had no proper height after two years, therefore, they havenot enough able to play their conservational role against wind erosion and the wind erosion is predominant in studied area.

Keywords

, wind, Soil erosion, sediment trap, biological practices, mechanical practices
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@inproceedings{paperid:1064700,
author = {Memarzadeh, Mahsa and Emami, Hojat and Karimi, Alireza},
title = {Comparison the conservational management practices on wind erosion in Tabas region},
booktitle = {International confernce on loess research},
year = {2017},
location = {گرگان, IRAN},
keywords = {wind; Soil erosion; sediment trap; biological practices; mechanical practices},
}

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%0 Conference Proceedings
%T Comparison the conservational management practices on wind erosion in Tabas region
%A Memarzadeh, Mahsa
%A Emami, Hojat
%A Karimi, Alireza
%J International confernce on loess research
%D 2017

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