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	Ecophysiological responses to drought stress in Populus euphratica
	Zhao Chunyan; Si Jianhua; Feng Qi; Yu Tengfei; Luo Huan; Qin Jie
来源期刊	Sciences in Cold and Arid Regions
ISSN	1674-3822
出版年	2021
卷号	13 期号:4 页码:326-336
英文摘要	Ecophysiological responses to drought stress of Populus euphratica in Alashan Desert Eco-hydrology Experimental Research Station were investigated. Results show that under mild and moderate drought stress, stomatal length, aperture, area and density is likely to decrease in the early days, but afterwards this is likely to recovery with treatment over the passage of treatment time. Under severe drought stress, these properties appear to decline continuously. However, after 45 days of drought-stress treatment, the decline is not as noticeable as before, indicating that Populus euphratica could possibly reduce water evaporation by shutting down the stoma, leading to an improvement in its water use efficiency with better survival under drought stress conditions. The leaf area first decreases, and then increases under mild and moderate drought stress conditions, with the average values under different degree of stress found to be approximately 129.52, 120.08, 116.63 and 107.28 cm~2, respectively. Under moderate stress conditions, the leaf water potential appears to show a continuous decline where the average values under different degree of stress are found to be -1.27, -1.85, -4.29 and -4.80 MPa, respectively. In terms of proline content, the results demonstrate that this factor appears to increase significantly under moderate and severe drought stress conditions. Especially under severe drought stress condition, the content is found to be more than 700 mug/g. Ranging over average values of 14.64 and 15.90 nmol/g under moderate and severe drought stress, respectively, Malondialdehyde content is found to increase quite rapidly under moderate and severe drought stress conditions at first, which then appears to decrease gradually with the treatment over time.
英文关键词	stomatal morphology drought stress Malondialdehyde proline Populus euphratica
类型	Article
语种	英语
收录类别	CSCD
WOS类目	Forestry
CSCD记录号	CSCD:7054385
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377482
作者单位	Zhao Chunyan, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences;;Key Laboratory of Ecohydrology of Inland River Basin, Chinese Academy of Sciences, ;;Key Laboratory of Ecohydrology of Inland River Basin, Chinese Academy of Sciences, Lanzhou;;Lanzhou, Gansu;;Gansu 730000;;730000.; Si Jianhua, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences;;Key Laboratory of Ecohydrology of Inland River Basin, Chinese Academy of Sciences, ;;Key Laboratory of Ecohydrology of Inland River Basin, Chinese Academy of Sciences, Lanzhou;;Lanzhou, Gansu;;Gansu 730000;;730000.; Feng Qi, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences;;Key Laboratory of Ecohydrology of Inland River Basin, Chinese Academy of Sciences, ;;Key Laboratory of Ecohydrology of Inland River Basin, Chinese Academy of Sciences, Lanzhou;;Lanzhou, Gansu;;Gansu 730000;;730000.; Yu Tengfei, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sci...
推荐引用方式 GB/T 7714	Zhao Chunyan,Si Jianhua,Feng Qi,et al. Ecophysiological responses to drought stress in Populus euphratica[J],2021,13(4):326-336.
APA	Zhao Chunyan,Si Jianhua,Feng Qi,Yu Tengfei,Luo Huan,&Qin Jie.(2021).Ecophysiological responses to drought stress in Populus euphratica.Sciences in Cold and Arid Regions,13(4),326-336.
MLA	Zhao Chunyan,et al."Ecophysiological responses to drought stress in Populus euphratica".Sciences in Cold and Arid Regions 13.4(2021):326-336.