干旱区生态环境知识资源中心(Arid): Contrasts in xylem hydraulics and water use underlie the sorting of different sand-fixing shrub species to early and late stages of dune stabilization

Arid

DOI	10.1016/j.foreco.2019.117705
	Contrasts in xylem hydraulics and water use underlie the sorting of different sand-fixing shrub species to early and late stages of dune stabilization
	Gong, Xue-Wei 1,2; Guo, Jing-Jing 1,2; Jiang, De-Ming 1; Li, Xue-Hua 1; Scholz, Fabian G.3,4; Bucci, Sandra J.3,4; Goldstein, Guillermo 5,6; Hao, Guang-You 1
通讯作者	Hao, Guang-You
来源期刊	FOREST ECOLOGY AND MANAGEMENT
ISSN	0378-1127
EISSN	1872-7042
出版年	2020
卷号	457
英文摘要	Dominating sand-fixing shrubs play crucial roles in the stabilization and rehabilitation of sand dunes. Different sand-fixing shrub species often separate along the temporal-spatial environmental gradient during the sand dune stabilization process; however, the physiological mechanisms underlying such a separation remain poorly understood, which limits our ability to identify the causes of land desertification and the cruxes of rehabilitation. We investigated xylem hydraulics and water use characteristics of four important shrub species used for sand dune fixation projects in northern China that show distinct preferences to different stages of dune stabilization, i.e. two species succeed in active dunes and the other two in fixed dunes. The major aim was to examine the roles of xylem hydraulics, water use and the coordination of these two aspects in determining the habitat preferences of sand-fixing shrubs along the process of dune stabilization in water-limited environments. The two active-dune species consistently exhibited higher stem hydraulic conductivity but lower resistance to drought-induced xylem embolism than the two fixed-dune species, which reflects contrasting requirements to shrub hydraulic functionality in sand dunes of the two successional stages that differ substantially in soil water regimes. In coordination with contrasts in hydraulics, they also diverged clearly in water use strategies with the fixed-dune shrubs showing more conservative water use. Our results highlight the critical roles that hydraulics and water utilization play in determining the adaptation of dominating sand-fixing shrub species to their respective environments shaped by the plant-soil interactions during sand dune vegetation development.
英文关键词	Desertification control Drought Embolism Sap flow Vegetation succession Water use strategy
类型	Article
语种	英语
国家	Peoples R China ; Argentina ; USA
收录类别	SCI-E
WOS记录号	WOS:000509611900034
WOS关键词	DROUGHT-TOLERANCE STRATEGIES ; TROPICAL DRY FOREST ; CARAGANA-KORSHINSKII ; TRADE-OFFS ; VEGETATION RESTORATION ; SUCCESSIONAL STAGES ; SEEDLING GROWTH ; PLANT-RESPONSES ; TENGGER DESERT ; LEAF TRAITS
WOS类目	Forestry
WOS研究方向	Forestry
EI主题词	2020-02-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312793
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang 110016, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Univ Nacl Patagonia San Juan Bosco, Gntpo Estudios Biofis & Etofisiol, Inst Biociencias Patagonia, CONICET, RA-9000 Comodoro Rivadavia, Argentina; 4.Univ Nacl Patagonia San Juan Bosco, Fac Ciencias Nat & Ciencias Salud, RA-9000 Comodoro Rivadavia, Argentina; 5.Univ Miami, Dept Biol, POB 249118, Coral Gables, FL 33124 USA; 6.Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Ecol Genet & Evoluc, Ciudad Univ,C1428EGA, Buenos Aires, DF, Argentina
推荐引用方式 GB/T 7714	Gong, Xue-Wei,Guo, Jing-Jing,Jiang, De-Ming,et al. Contrasts in xylem hydraulics and water use underlie the sorting of different sand-fixing shrub species to early and late stages of dune stabilization[J],2020,457.
APA	Gong, Xue-Wei.,Guo, Jing-Jing.,Jiang, De-Ming.,Li, Xue-Hua.,Scholz, Fabian G..,...&Hao, Guang-You.(2020).Contrasts in xylem hydraulics and water use underlie the sorting of different sand-fixing shrub species to early and late stages of dune stabilization.FOREST ECOLOGY AND MANAGEMENT,457.
MLA	Gong, Xue-Wei,et al."Contrasts in xylem hydraulics and water use underlie the sorting of different sand-fixing shrub species to early and late stages of dune stabilization".FOREST ECOLOGY AND MANAGEMENT 457(2020).