干旱区生态环境知识资源中心(Arid): Comparison of Leaf and Fine Root Traits Between Annuals and Perennials, Implicating the Mechanism of Species Changes in Desertified Grasslands

Arid

DOI	10.3389/fpls.2021.778547
	Comparison of Leaf and Fine Root Traits Between Annuals and Perennials, Implicating the Mechanism of Species Changes in Desertified Grasslands
	Ning, Zhiying; Li, Yulin; Zhao, Xueyong; Han, Dan; Zhan, Jin
通讯作者	Ning, ZY ; Zhao, XY (corresponding author)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou, Peoples R China. ; Ning, ZY (corresponding author)，Univ Chinese Acad Sci, Beijing, Peoples R China.
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2022
卷号	12
英文摘要	Annual species show traits, such as shortleaf lifetimes, higher specific leaf area, and leaf nutrient concentrations, that provided a more rapid resource acquisition compared to perennials. However, the comparison of root traits between the annuals and perennials is extremely limited, as well as the trade-offs of leaf and fine root traits, and resource allocation between leaf and root, which may provide insight into the mechanism of species changes in arid and semi-arid areas. With lab analysis and field observation, 12 traits of leaf and fine root of 54 dominant species from Horqin Sandy Land, Northeastern China were measured. The organization of leaf and fine root traits, and coordination between leaf and fine root traits of annual and perennial plants were examined. Results showed that there were differences between annuals and perennials in several leaves and fine root traits important in resource acquisition and conservation. Annuals had higher leaf area (LA), specific LA (SLA), and specific root length (SRL) but lower leaf dry-matter content (LDMC), leaf tissue density (LTD), leaf carbon concentration (LC), and fine root dry-matter content (FRDMC) than perennials. Leaf nitrogen (LN) concentration and fine root nitrogen concentration (FRN) were negatively related to LTD and FRDMC in annuals, while FRN was positively related to FRTD and fine root carbon concentration (FRC), and LA was positively related to LN in perennials. These implied that annuals exhibited tough tissue and low palatability, but perennials tend to have smaller leaves to reduce metabolism when N is insufficient. Annuals showed significant positive correlations between FRC/FRDMC and LDMC/LTD/LC, suggesting a proportional allocation of photosynthate between leaf and fine root. In perennials, significant negative correlations were detected between LN, LC, and SRL, fine root tissue density (FRTD), as well as between LA and FRTD/FRC. These indicated that perennials tend to allocate more photosynthate to construct a deeper and rigid roots system to improve resource absorption capacity in resource-limited habitats. Our findings suggested that annuals and perennials differed considerably in terms of adaptation, resource acquisition, and allocation strategies, which might be partly responsible for species changes in desertified grasslands. More broadly, this work might be conducive to understand the mechanism of species changes and could also provide support to the management and restoration of desertified grassland in arid and semi-arid areas.
英文关键词	leaf fine root plant functional traits annuals perennials species changes arid and semi-arid area
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000760799700001
WOS关键词	HORQIN SANDY LAND ; RESOURCE-ACQUISITION ; FUNCTIONAL TRAITS ; AEOLIAN DESERTIFICATION ; NUTRIENT CONTENT ; PLANT TRAITS ; ANNUAL WHEAT ; LIFE-SPAN ; VEGETATION ; ECONOMICS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376329
作者单位	[Ning, Zhiying; Li, Yulin; Zhao, Xueyong; Zhan, Jin] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou, Peoples R China; [Ning, Zhiying; Zhan, Jin] Univ Chinese Acad Sci, Beijing, Peoples R China; [Han, Dan] Yangling Agr Hitech Ind Demonstrat Zone, Xian, Peoples R China
推荐引用方式 GB/T 7714	Ning, Zhiying,Li, Yulin,Zhao, Xueyong,et al. Comparison of Leaf and Fine Root Traits Between Annuals and Perennials, Implicating the Mechanism of Species Changes in Desertified Grasslands[J],2022,12.
APA	Ning, Zhiying,Li, Yulin,Zhao, Xueyong,Han, Dan,&Zhan, Jin.(2022).Comparison of Leaf and Fine Root Traits Between Annuals and Perennials, Implicating the Mechanism of Species Changes in Desertified Grasslands.FRONTIERS IN PLANT SCIENCE,12.
MLA	Ning, Zhiying,et al."Comparison of Leaf and Fine Root Traits Between Annuals and Perennials, Implicating the Mechanism of Species Changes in Desertified Grasslands".FRONTIERS IN PLANT SCIENCE 12(2022).