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| 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 |
| Ma Yang1,2,3, Wang Xueqin1, Han Zhangyong1,2,3, Liu Jinhui1,2,3 |
1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Vrümqi 830011, China;
2. Cele National Station of Observation & Research for Desert Grassland Ecosystem, Cele 848300, Xinjiang, China;
3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract 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.
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Received: 03 June 2014
Published: 20 September 2015
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2015, Vol. 35 
