Leaf Carbon Exchange of Two Dominant Plant Species Impacted by Water and Nitrogen Application in a Semi-Arid Temperate Steppe

doi:10.3389/fpls.2022.736009

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Leaf Carbon Exchange of Two Dominant Plant Species Impacted by Water and Nitrogen Application in a Semi-Arid Temperate Steppe
	Zhang, Xiaolin ; Zhai, Penghui ; Huang, Jianhui 1,2
刊名	FRONTIERS IN PLANT SCIENCE
	2022
卷号	13
关键词	light response curve nitrogen application photosynthesis snow addition water addition Leymus chinensis Stipa grandis
ISSN号	1664-462X
DOI	10.3389/fpls.2022.736009
文献子类	Article
英文摘要	Photosynthetic characteristics are widely used as indicators of plant responses to global environmental changes such as precipitation change and nitrogen (N) deposition increase. How different plant species respond physiologically to the future precipitation change combined with increasing N availability is largely unclear. A field experiment was conducted to study responses in seasonal and interannual leaf carbon (C) exchange of two dominant plant species, Leymus chinensis and Stipa grandis, to additional water (either as spring snow or as summer water) and N application in a semi-arid temperate steppe of China. Our results showed that spring snow and summer water addition both increased the maximum photosynthetic rate (A(max)) of two dominant species. Such effect was likely caused by raised light saturation point, the maximum apparent quantum yield, stomatal conductance, and transpiration rate. The N application combined with spring snow or summer water addition both enhanced A(max) of S. grandis in both experimental years, whereas N application only increased A(max) of L. chinensis combined with summer water addition. Their responses were attributed to a concurrent increase in leaf N concentration (N-leaf) and decrease in leaf phosphorus (P) concentration (P-leaf), indicating that N-leaf and P-leaf affect photosynthetic characteristics to regulate leaf C exchange. Our results suggest that differentiated responses among different species in photosynthetic characteristics may lead to changes in ecosystem structure and functioning under increasing precipitation and N deposition.
学科主题	Plant Sciences
出版地	LAUSANNE
WOS关键词	LEYMUS-CHINENSIS ; PHOTOSYNTHETIC CHARACTERISTICS ; PRECIPITATION CHANGE ; RESPONSES ; GRASSLAND ; CLIMATE ; GROWTH ; STRESS ; VARIABILITY ; SEEDLINGS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000796923300001
资助机构	National Natural Science Foundation of China [31800381, 32071562] ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi [2019L0366] ; Research Project for Outstanding Doctor Work Award Fund in Shanxi Province [SXYBKY201746] ; Science and Technology Innovation Fund of Shanxi Agriculture University [2017YJ11] ; Shanxi Province Graduate Education Innovation Project [2020BY054]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/28992]
专题	植被与环境变化国家重点实验室
作者单位	1.Shanxi Agr Univ, Coll Grassland Sci, Taigu, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaolin,Zhai, Penghui,Huang, Jianhui. Leaf Carbon Exchange of Two Dominant Plant Species Impacted by Water and Nitrogen Application in a Semi-Arid Temperate Steppe[J]. FRONTIERS IN PLANT SCIENCE,2022,13.
APA	Zhang, Xiaolin,Zhai, Penghui,&Huang, Jianhui.(2022).Leaf Carbon Exchange of Two Dominant Plant Species Impacted by Water and Nitrogen Application in a Semi-Arid Temperate Steppe.FRONTIERS IN PLANT SCIENCE,13.
MLA	Zhang, Xiaolin,et al."Leaf Carbon Exchange of Two Dominant Plant Species Impacted by Water and Nitrogen Application in a Semi-Arid Temperate Steppe".FRONTIERS IN PLANT SCIENCE 13(2022).