تحليل مقايسه اي ارتباطات بين مولفه هاي مورفومتري نبكا و مورفولوژي گياهي گونه هاي Tamarix mascatensis، Reaumuria turkestanica و Alhagi mannifera در كفه خيرآباد سيرجان

A comparative evaluation of relationship between nebkha morphometry and plant morphology, case study: Khair Abad desert in Sirjan

Applied geomorphology is concerned with sufficient sustaining in natural landscape, mitigating natural hazards, minimizing and adjusting the environmental change. One of the most important landscapes in arid land is nebkha dunes. Nebkha has been formed as a function of wind regime, biological aspect and sediment supply. Understanding complex ecogeomorphological relationships is applied in predicting the likely success of climate change, investigating the effects of changes in land use and reconstructing condition responsible for the formation and stabilization of relief systems. This paper has evaluated the relationship between morphology parameters of Ta.ma, Re.tu and Al.ma, and nebkha morphometry with multivariate linear regression in Khair Abad desert in Siijan basin. The effective parameters on Ta.ma and Re.tu nebkha height in are canopy cover, length and branch diameter with coefficient of determination (R2) of 0.72and0.74for to selected models. Best illustration characteristics for horizontal component were found canopy and branch diameter for Ta.ma nebkha and canopy cover and plant length , for Re.tu for R2 of 0.655and 0.531. On Al.ma only canopy cover has satisfied for determining of nebkha height and horizontal component with R2 value of 0.586, 0.625. The slope of nebkha dune has been formed only one model for Ta.ma nebkha with R2of 0.464. Result showed is a strong relationship between nebkha forms and plant growth forms. That it state different function of plant species. Intensity of relationship was related to adaptation of nebkha species mechanisms.