| Authors | Somayeh Heydarnezhad , Abolfazl Ranjbar Fordoie |
|---|---|
| Journal | International Journal of Forest, Soil and Erosion (IJFSE) |
| Page number | 11-15 |
| Paper Type | Original Research |
| Published At | 2014 |
| Journal Grade | Scientific - promoting |
| Journal Type | Electronic |
| Journal Country | Iran, Islamic Republic Of |
Abstract
Abstract: Many factors threaten the survival of desert plant species. One of the most prevalent is aeolian dust accumulation,
generated by soil surface disturbance. Nevertheless, the influence of aeolian dust accumulation on plant physiology has
hardly been investigated. Therefore, the effect of aeolian dust accumulation on some biochemical parameters in Haloxylone
aphyllum was evaluated for the pan-Asiatic distribution and its key role in desert rehabilitation. The amount of dust trapped
by an increasing coverage of (20%) was 1.77, 1.80, 2.43, 2.10 and 2.72 times of that by the control, respectively.
Reductions in chlorophyll a (Chl. a), chlorophyll b (Chl. b) and total carotenoids (Cr) were observed in the leaf samples
among the treatments. The ratio of Chlorophyll a/b and chlorophyll (a+b)/Cr showed a negative correlation with dust
accumulation. The obtained data revealed that, aeolian dust accumulation induced a surge of changes in biochemical (total
nitrogen and, total Soluble Sugar content, main and accessory Photosynthetic Pigments) and thus in physiological
performance.
tags: Nitrogen content, Photosynthetic Pigments, Soluble Sugars, Vegetation component