干旱区生态环境知识资源中心(Arid): Comparison of water-use patterns for non-native and native woody species in a semiarid sandy region of Northeast China based on stable isotopes

Arid

DOI	10.1016/j.envexpbot.2019.103923
	Comparison of water-use patterns for non-native and native woody species in a semiarid sandy region of Northeast China based on stable isotopes
	Song, Lining 1,2,3; Zhu, Jiaojun 1,2,3; Li, Mingcai 1,2,3; Zhang, Jinxin 1,2,3; Wang, Kai 4; Lu, Linyou 5
通讯作者	Zhu, Jiaojun
来源期刊	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
ISSN	0098-8472
EISSN	1873-7307
出版年	2020
卷号	174
英文摘要	In the semiarid sandy region of Northeast China, non-native woody species such as Pinus sylvestris var. mongolica L. and Populus x xiaozhuanica W.Y. Hsu & Liang frequently suffer dieback during years of extreme drought events due to water deficiency. In contrast, dieback does not usually occur in native woody species, e.g., Pinus tabuliformis Carr., Ulmus pumila L., and shrub Caragana microphylla Lam. However, the mechanism of water-use patterns between the non-native and native woody species remain unclear, which limits our understanding of the mechanisms underlying dieback of non-native woody species. During two consecutive growing seasons in 2014 and 2015, sources of water uptake by two non-native (P. mongolica and P. xiaozhuanica) and three native (P. tabuliformis, U. pumila and C. microphylla) woody species were determined using the stable isotopes of delta H-2 and delta O-18 in the twig xylem water, soil water at various depths (0-200 cm), groundwater (water from capillary fringe or beneath the water table) and precipitation, coupled with soil moisture and groundwater level measurements. Results showed that both P. mongolica and P. tabuliformis trees used the 0-100 cm soil water in the spring and the 0-40 cm and 0-100 cm soil water in summer of 2014 and autumn of 2015, respectively, when soil moisture was high. In contrast, in summer of 2015 and autumn of 2014, when soil moisture was low, P. mongolica trees used both the 0-100 cm soil water and groundwater, whereas P. tabuliformis trees used the 0-200 cm soil water and both the 40-200 cm soil water and relatively limited groundwater, respectively. The P. xiaozhuanica trees used the 40-200 cm or the 100-200 cm soil water and groundwater, whereas U. pumila trees mainly used the 0-100 cm or 0-200 cm soil water, except in autumn when soil moisture was high. P. xiaozhuanica trees used the 0-200 cm soil water, while U. pumila trees used the 0-40 cm soil water. The shrub C. microphylla mainly used the 0-200 cm soil water during the measurement period irrespective of soil moisture conditions. Compared with the native woody species, which mainly used soil water, the non-native tree species relied on groundwater besides soil water, especially under low soil moisture conditions. Therefore, a sharp decline in groundwater level during extreme drought years might have a strong negative impact on the growth and survival of non-native woody species.
英文关键词	Dieback Stable isotopes Soil water content Groundwater Water uptake
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000527984200001
WOS关键词	SYLVESTRIS VAR. MONGOLICA ; PLANT WATER ; SOIL-WATER ; DROUGHT RESISTANCE ; VACUUM EXTRACTION ; DESERT ECOSYSTEM ; INNER-MONGOLIA ; DIFFERENT AGES ; TREES ; DESERTIFICATION
WOS类目	Plant Sciences ; Environmental Sciences
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319261
作者单位	1.Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang 110016, Peoples R China; 2.Liaoning Key Lab Management Noncommercial Forests, Shenyang 110016, Peoples R China; 3.Chinese Acad Sci, Qingyuan Forest CERN, Shenyang 110016, Peoples R China; 4.Liaoning Tech Univ, Coll Environm Sci & Engn, Fuxing 123000, Peoples R China; 5.Inst Sandy Land Control & Utilizat, Fuxing 123000, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Song, Lining,Zhu, Jiaojun,Li, Mingcai,et al. Comparison of water-use patterns for non-native and native woody species in a semiarid sandy region of Northeast China based on stable isotopes[J],2020,174.
APA	Song, Lining,Zhu, Jiaojun,Li, Mingcai,Zhang, Jinxin,Wang, Kai,&Lu, Linyou.(2020).Comparison of water-use patterns for non-native and native woody species in a semiarid sandy region of Northeast China based on stable isotopes.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,174.
MLA	Song, Lining,et al."Comparison of water-use patterns for non-native and native woody species in a semiarid sandy region of Northeast China based on stable isotopes".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 174(2020).