Spatial Variation of Leaf Chlorophyll in Northern Hemisphere Grasslands

doi:10.3389/fpls.2020.01244

	Spatial Variation of Leaf Chlorophyll in Northern Hemisphere Grasslands
	Zhang, Yao 2; Li, Ying 2,3; Wang, Ruomeng 2,4; Xu, Li 2; Li, Mingxu 2; Liu, Zhaogang 1,4; Wu, Zhenliang 3; Zhang, Jiahui 2,4; Yu, Guirui 2,4; He, Nianpeng 2,4,5
刊名	FRONTIERS IN PLANT SCIENCE
	2020-08-12
卷号	11 页码:14
关键词	allocation chlorophyll grassland influencing factors leaf nitrogen spatial variation trait distribution
ISSN号	1664-462X
DOI	10.3389/fpls.2020.01244
通讯作者	He, Nianpeng(henp@igsnrr.ac.cn)
英文摘要	Chlorophyll is the molecular basis for the function of photosystems and is also a promising tool for ecological prediction. However, the large-scale patterns of chlorophyll variation in grasslands remain poorly understood. We performed consistent measurements of chlorophylla,b,a+b, and thea:bratio (chlorophylla/b) for 421 species across northern hemisphere grassland transects, recorded their distributions, variations, and influencing factors, and examined their relationships with leaf nitrogen. The results showed that the distributional ranges were 0.52-28.33 (mean 5.49) mg center dot g(-1)dry weight, 0.15-12.11 (mean 1.83) mg center dot g(-1)dry weight, 0.67-39.29 (mean 7.32) mg center dot g(-1)dry weight, and 1.28-7.84 (mean 3.02) for chlorophylla,b,a+b, anda/b, respectively. The chlorophyll averages differed among regions (higher in the Loess Plateau and the Mongolian Plateau than in the Tibetan Plateau), grassland types (desert grasslands > meadow > typical grasslands), life forms, life spans, and taxonomies. In the entire northern hemisphere grassland, chlorophyll concentrations and chlorophylla/bwere negatively correlated to photosynthetically active radiation and the soil N:P ratio, and positively correlated to the mean annual temperatures. These results implied that chlorophyll in grasslands was shaped by the layered structure of grasses, distinct plateau environments, and phylogeny. The allocation patterns of leaf nitrogen to chlorophyll differed among regions and grassland types, showing that caution is required if simply relating single leaf N or chlorophyll to productivity separately. These findings enhance our understanding of chlorophyll in natural grasslands on a large scale, as well as providing information for ecological predictive models.
资助项目	National Key R&D Project of China[2017YFA0604803] ; Youth Program of National Natural Science Foundation of China[41701053]
WOS关键词	PHOTOSYNTHETIC CAPACITY ; HIGH LIGHT ; NITROGEN ; FOREST ; LEAVES ; TRAITS ; CARBON ; SOIL ; ACCLIMATION ; IRRADIANCE
WOS研究方向	Plant Sciences
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000565278300001
资助机构	National Key R&D Project of China ; Youth Program of National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/157996]
专题	中国科学院地理科学与资源研究所
通讯作者	He, Nianpeng
作者单位	1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 3.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 5.Northeast Normal Univ, Inst Grassland Sci, Key Lab Vegetat Ecol, Minist Educ, Changchun, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yao,Li, Ying,Wang, Ruomeng,et al. Spatial Variation of Leaf Chlorophyll in Northern Hemisphere Grasslands[J]. FRONTIERS IN PLANT SCIENCE,2020,11:14.
APA	Zhang, Yao.,Li, Ying.,Wang, Ruomeng.,Xu, Li.,Li, Mingxu.,...&He, Nianpeng.(2020).Spatial Variation of Leaf Chlorophyll in Northern Hemisphere Grasslands.FRONTIERS IN PLANT SCIENCE,11,14.
MLA	Zhang, Yao,et al."Spatial Variation of Leaf Chlorophyll in Northern Hemisphere Grasslands".FRONTIERS IN PLANT SCIENCE 11(2020):14.