TY - JOUR ID - 4788 TI - Investigation of the effect of natural windbreaks on flowing sandy soils and determining the type of optimal windbreak using the method (DBA) (Case study of Sistan and Baluchestan province) JO - Amirkabir Journal of Civil Engineering JA - CEEJ LA - en SN - 2588-297X AU - Taghavi Parsa, Mohmmad Hossein AU - Ahmadi, Saeed AD - Ihu AD - Khajeh Nasir al-Din Tusi University Y1 - 2022 PY - 2022 VL - 54 IS - 9 SP - 3603 EP - 3616 KW - Quicksand KW - storm KW - natural windbreak KW - Sistan and Baluchestan KW - DBA method DO - 10.22060/ceej.2022.19420.7168 N2 - Sistan and Baluchestan province is located in the southeast of Iran and has a dry and unfavorable climate. Due to environmental changes such as the drying up of Lake Hamoon and the occurrence of so-called 120-day winds, suitable conditions have been provided for wind erosion of the soil and the occurrence of dust storms and the movement of sand dunes at high speed. One way to prevent this is to use natural windbreaks. Windbreaks are defined as barriers that reduce wind speed and usually use vegetation as a barrier. The function of windbreaks is to reduce wind speed, change the direction and angle of the wind around the windbreak area. By locating and constructing windbreaks, the movement of flowing hills can be prevented to a large extent. The purpose of this study is to determine the appropriate plant species in the province for the construction of natural windbreaks and select the optimal sample using the distance-based method. Also, with the studies performed, the amount of decrease in wind speed before and after the windbreak and the appropriate distance of its construction from a specific area were determined. Finally, it was found that Chesh and Kurt, coriander, turmeric, hawthorn and almond trees are suitable species for planting in this area. Also, using the DBA method, it was determined that the Acacia Nilotica tree is more optimal than other species for the construction of windbreaks. UR - https://ceej.aut.ac.ir/article_4788.html L1 - https://ceej.aut.ac.ir/article_4788_4862e724b284e567dd444e736ff0ffb3.pdf ER -