Study of the role of the medicinal herb Alhagi persarum in reduction of dust hazards: A case study of Segesi plain of Isfahan

Isfahan province is beset by vegetation poverty in most of its pastures due to such climatic characteristics as low rainfall, high variability, high temperature, and high evapotranspiration especially in desert areas. The occurrence of erosions by the least wind blow in some areas has caused a flow of sand to cities, villages, military centers and so on. Therefore, recognizing wind tunnel removal sites can be of considerable help in combating wind erosion. In this paper, using meteorological and meteorological data, we tried to study the general morphology of sand dunes and the wind regime in each region in Segesi plain located in Isfahan province. Also, by locating harvest areas and identifying erosion-sensitive faces, we identified the areas that play the most role in wind sediments. The areas that are under wind erosion and without vegetation are identified to be the main source of dust. The distribution of available drug species and the NDVI vegetation in the region were studied too. The corresponding areas are good places where to plant medicinal plants, especially the herb Alhagi persarum, to reduce dust. Considering that this herb has the widest dispersal in the area, combining this map with the map of critical erosion centers indicates that the areas poorly covered by vegetation undego the worst wind erosion.