Effect of Wind Erosion and Sand Burial on Physiological Characters in Alhagi sparsifolia and Karelinia caspica Seedlings in the Southern Margin of the Taklimakan Desert
Received date: 2014-06-03
Revised date: 2014-07-29
Online published: 2015-09-20
The objective of this study is to investigate the effects of wind erosion and sand burial interference on physiological characters of Alhagi sparsifolia and Karelinia caspica seedlings. Besides, we also want to find the optimal habitat of desert plant seedlings growth. We set 7 different types of treatments: mild wind erosion, severe wind erosion, moderate wind erosion, control, and mild sand buried, moderate sand burial, severe sand burial to observed the changes of reaction of photosynthetic pigments, chlorophyll, malondialdehyde (MDA) and soluble sugar in A. sparsifolia and K. caspica seedlings under these two interference after 15 days treatments. Important findings, after wind erosion and sand buried treatment, K. caspica seedling accumulation of MDA lead to membrane damage, The MDA content of A. sparsifolia seedlings changed little. Chlorophyll content under sand buried stress rise with the increase of sand buried depth, but reduced under wind erosion stress. The changes of chlorophyll content are adaption strategy that plant subjected to wind erosion and sand buried stress. Under Wind erosion and sand buried treatments, seedlings can adjusted the increase of A. sparsifolia photosynthetic rate and the decrease of K. caspica photosynthetic rate. In addition, K. caspica and A. sparsifolia seedlings have ability for resistance to wind erosion and sand buried, but the ability of tolerance buried stress in A. sparsifolia was stronger than in K. caspica.
Ma Yang , Wang Xueqin , Han Zhangyong , Liu Jinhui . Effect of Wind Erosion and Sand Burial on Physiological Characters in Alhagi sparsifolia and Karelinia caspica Seedlings in the Southern Margin of the Taklimakan Desert[J]. Journal of Desert Research, 2015 , 35(5) : 1254 -1261 . DOI: 10.7522/j.issn.1000-694X.2014.00109
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