气候变化领域集成服务门户(CCPortal): Leaf Physiological Responses of Three Psammophytes to Combined Effects of Warming and Precipitation Reduction in Horqin Sandy Land, Northeast China

CCPortal

DOI	10.3389/fpls.2021.785653
	Leaf Physiological Responses of Three Psammophytes to Combined Effects of Warming and Precipitation Reduction in Horqin Sandy Land, Northeast China
	Huang, Wen-Da; He, Yuan-Zheng; Wang, Huai-Hai; Zhu, Yuan-Zhong
通讯作者	Huang, WD ; He, YZ (通讯作者)，Chinese Acad Sci, Northwest Inst EcoEnvironm & Resources, Naiman Desertificat Res Stn, Lanzhou, Peoples R China. ; Huang, WD (通讯作者)，Chinese Acad Sci, Northwest Inst EcoEnvironm & Resources, Key Lab Stress Physiol & Ecol Cold & Arid Regions, Lanzhou, Peoples R China. ; He, YZ (通讯作者)，Univ Chinese Acad Sci, Sch Life Sci, Beijing, Peoples R China.
发表日期	2022
ISSN	1664-462X
卷号	12
英文摘要	The decreasing precipitation with global climate warming is the main climatic condition in some sandy grassland ecosystems. The understanding of physiological responses of psammophytes in relation to warming and precipitation is a possible way to estimate the response of plant community stability to climate change. We selected Lespedeza davurica, Artemisia scoparia, and Cleistogenes squarrosa in sandy grassland to examine the effect of a combination of climate warming and decreasing precipitation on relative water content (RWC), chlorophyll, proline, and antioxidant enzyme activities. We found that all experimental treatments have influenced RWC, chlorophyll, proline, and antioxidant enzyme activities of three psammophytes. L. davurica has the highest leaf RWC among the three psammophytes. With the intensification of precipitation reduction, the decreasing amplitude of chlorophyll from three psammophytes was L. davurica > C. squarrosa > A. scoparia. At the natural temperature, the malondialdehyde (MDA) content of the three psammophytes under severe drought treatment was much higher than other treatments, and their increasing degree was as follows: A. scoparia > C. squarrosa > L. davurica. At the same precipitation gradient, the proline of three psammophytes under warming was higher than the natural temperature. The differences in superoxide dismutase (SOD) among the three psammophytes were A. scoparia > L. davurica > C. squarrosa. Moreover, at natural temperature, more than 40% of precipitation reduction was most significant. Regardless of warming or not, the catalase (CAT) activity of A. scoparia under reduced precipitation treatments was higher than natural temperature, while the response of L. davurica was opposite. Correlation analyses evidenced that warming (T) was significant in L. davurica and precipitation (W) was significant in A. scoparia and C. squarrosa according to the Monte-Carlo permutation test (p = 0.002, 0.004, and 0.004). The study is important in predicting how local plants will respond to future climate change and assessing the possible effects of climate change on sandy grassland ecosystems.
关键词	DROUGHT TEMPERATURE PATTERNS PHOTOSYNTHESIS PEROXIDATION STRESS GROWTH PLANTS GRASS CO2
英文关键词	psammophytes; Horqin sandy land; warming; precipitation reduction; physiological
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000745990000001
来源期刊	FRONTIERS IN PLANT SCIENCE
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/253629
作者单位	[Huang, Wen-Da; He, Yuan-Zheng; Wang, Huai-Hai; Zhu, Yuan-Zhong] Chinese Acad Sci, Northwest Inst EcoEnvironm & Resources, Naiman Desertificat Res Stn, Lanzhou, Peoples R China; [Huang, Wen-Da] Chinese Acad Sci, Northwest Inst EcoEnvironm & Resources, Key Lab Stress Physiol & Ecol Cold & Arid Regions, Lanzhou, Peoples R China; [He, Yuan-Zheng; Wang, Huai-Hai; Zhu, Yuan-Zhong] Univ Chinese Acad Sci, Sch Life Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Huang, Wen-Da,He, Yuan-Zheng,Wang, Huai-Hai,et al. Leaf Physiological Responses of Three Psammophytes to Combined Effects of Warming and Precipitation Reduction in Horqin Sandy Land, Northeast China[J]. 中国科学院西北生态环境资源研究院,2022,12.
APA	Huang, Wen-Da,He, Yuan-Zheng,Wang, Huai-Hai,&Zhu, Yuan-Zhong.(2022).Leaf Physiological Responses of Three Psammophytes to Combined Effects of Warming and Precipitation Reduction in Horqin Sandy Land, Northeast China.FRONTIERS IN PLANT SCIENCE,12.
MLA	Huang, Wen-Da,et al."Leaf Physiological Responses of Three Psammophytes to Combined Effects of Warming and Precipitation Reduction in Horqin Sandy Land, Northeast China".FRONTIERS IN PLANT SCIENCE 12(2022).