气候变化领域集成服务门户(CCPortal): Effects of ecological water transport on photosynthesis and chlorophyll fluorescence of Populus euphratica

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DOI	10.2166/ws.2017.236
	Effects of ecological water transport on photosynthesis and chlorophyll fluorescence of Populus euphratica
	Zhao, Chun Yan; Si, Jian Hua; Feng, Qi; Yu, Teng Fei; Deo, Ravinesh C.; Luo, Huan
发表日期	2018
ISSN	1606-9749
卷号	18 期号:5
英文摘要	This study investigated the physiological response of Populus euphratica (P. euphratica) to ecological water transport. Results showed significant increases in net photosynthetic (32.71%), stomatal conductance (27.58%), and transpiration (25.18%) rates of P. euphratica prior to the ecological water transport treatment. Internal CO2 concentrations (Ci) decreased significantly compared with the day preceding the treatment (23.69%; P < 0.05). During the treatment, the O, J, I, and P steps quickly increased, with the P step exhibiting the most significant change (P < 0.05). Moreover, Fv /Fm and Fv/Fo values were highest 7 d after the ecological water transport treatment. During the treatment, the initial fluorescence (F-0), the maximal fluorescence intensity (Fm), PI, and RC/CSo quickly increased, with an increasing percentage of 9.67%, 46.15%, 59.17%, and 48.54%. In contrast, V-j, ABS/RC, TRo/RC, and ETo/RC rapidly decreased, with a decreasing percentage of 30.43%, 43.54%, 37.50%, and 39.04%, respectively. After the treatment, the average chlorophyll content of a, b, and a+b increased by 26.36%, 8.89%, and 21.93%, respectively, compared with the day preceding the treatment. This study also found that the relationship between soil water content and the net photosynthetic rate, stomatal conductance, the transpiration rate, the internal CO2 concentration, Fv/Fm, and Fv/Fo of P. euphratica were strongest during ecological water transport.
关键词	chlorophyll fluorescence ecological water transport photosynthesis Populus euphratica
学科领域	Engineering; Environmental Sciences & Ecology; Water Resources
语种	英语
WOS研究方向	Engineering, Environmental ; Environmental Sciences ; Water Resources
来源期刊	WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111986
作者单位	Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Chun Yan,Si, Jian Hua,Feng, Qi,et al. Effects of ecological water transport on photosynthesis and chlorophyll fluorescence of Populus euphratica[J]. 中国科学院西北生态环境资源研究院,2018,18(5).
APA	Zhao, Chun Yan,Si, Jian Hua,Feng, Qi,Yu, Teng Fei,Deo, Ravinesh C.,&Luo, Huan.(2018).Effects of ecological water transport on photosynthesis and chlorophyll fluorescence of Populus euphratica.WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY,18(5).
MLA	Zhao, Chun Yan,et al."Effects of ecological water transport on photosynthesis and chlorophyll fluorescence of Populus euphratica".WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY 18.5(2018).