干旱区生态环境知识资源中心(Arid): A Comparative Analysis of the Hydraulic Strategies of Non-Native and Native Perennial Forbs in Arid and Semiarid Areas of China

Arid

DOI	10.3390/f13020193
	A Comparative Analysis of the Hydraulic Strategies of Non-Native and Native Perennial Forbs in Arid and Semiarid Areas of China
	Dong, Yanjun; Li, Zongshan; Keyimu, Maierdang; Chen, Ying; Gao, Guangyao; Wang, Cong; Wang, Xiaochun
通讯作者	Li, ZS (corresponding author)，Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China.
来源期刊	FORESTS
EISSN	1999-4907
出版年	2022
卷号	13 期号:2
英文摘要	(1) Background: Water transport systems play an important role in maintaining plant growth and development. The plasticity responses of the xylem anatomical traits of different species to the environment are different. Studies have shown that there are annual growth rings in the secondary root xylem of perennial herbaceous species. Studies on xylem anatomical traits, however, have mainly focused on woody species, with little attention given to herbaceous species. (2) Methods: We set 14 sampling sites along a rainfall gradient in arid and semiarid regions, and collected the main roots of native (Potentilla) and non-native (Medicago) perennial forbs. The xylem anatomical traits of the plant roots were obtained by paraffin section, and the relationships between the xylem traits of forbs were analyzed by a Pearson correlation. (3) Results: In the fixed measurement area (850 mu m x 850 mu m), the vessel number (NV) of Potentilla species was higher than that of Medicago species, while the hydraulic diameter (Dh) and mean vessel area (MVA) of Potentilla species were lower than those of Medicago species. With the increase in precipitation along the rainfall gradient, the Dh (R-2 = 0.403, p = 0.03) and MVA (R-2 = 0.489, p = 0.01) of Medicago species increased significantly, and NV (R-2 = 0.252, p = 0.09) decreased, while the hydraulic traits of Potentilla species showed no significant trend with regard to the rainfall gradient. (4) Conclusions: The hydraulic efficiency of non-native Medicago forbs was higher than that of native Potentilla forbs, and the hydraulic safety of native Potentilla forbs was higher than that of non-native Medicago forbs. With the decrease in precipitation, the hydraulic strategies of non-native Medicago forbs changed from efficiency to safety, while native Potentilla forbs were not sensitive to variations in precipitation.
英文关键词	hydraulic conductivity traits water conveyance strategies root vessel anatomy
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000763149600001
WOS关键词	GROWTH RINGS ; SALINITY GRADIENT ; FUNCTIONAL TRAITS ; XYLEM CAVITATION ; HERB-CHRONOLOGY ; LEAF STRUCTURE ; LOESS PLATEAU ; ANATOMY ; PLANT ; ARCHITECTURE
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376383
作者单位	[Dong, Yanjun; Li, Zongshan; Gao, Guangyao; Wang, Cong] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China; [Dong, Yanjun] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Keyimu, Maierdang] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Keyimu, Maierdang] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Key Lab Desert Plant Roots Ecol & Vegeta, Urumqi 830011, Peoples R China; [Chen, Ying; Wang, Xiaochun] Northeast Forestry Univ, Ctr Ecol Res, Harbin 150040, Peoples R China
推荐引用方式 GB/T 7714	Dong, Yanjun,Li, Zongshan,Keyimu, Maierdang,et al. A Comparative Analysis of the Hydraulic Strategies of Non-Native and Native Perennial Forbs in Arid and Semiarid Areas of China[J],2022,13(2).
APA	Dong, Yanjun.,Li, Zongshan.,Keyimu, Maierdang.,Chen, Ying.,Gao, Guangyao.,...&Wang, Xiaochun.(2022).A Comparative Analysis of the Hydraulic Strategies of Non-Native and Native Perennial Forbs in Arid and Semiarid Areas of China.FORESTS,13(2).
MLA	Dong, Yanjun,et al."A Comparative Analysis of the Hydraulic Strategies of Non-Native and Native Perennial Forbs in Arid and Semiarid Areas of China".FORESTS 13.2(2022).