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Water use strategies for two dominant tree species in pure and mixed plantations of the semiarid Chinese Loess Plateau

文献类型：期刊论文

作者Yunming Chen3; Jie Wen3; Senbao Lu3; Chen, YM (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.; Yakun Tang3; Xu Wu1,4; Yuli Xie3
刊名ECOHYDROLOGY
出版日期2018
卷号11期号:4
关键词Hydrogen Stable Isotope Physiological Response Soil Moisture Pulse Water Use Strategy
ISSN号1936-0584
DOI10.1002/eco.1943
文献子类Article
英文摘要Understanding the water sources and physiological responses to soil moisture pulses for plantation species, particularly in mixed plantations, are essential to assess the water use strategy and vegetation restoration in semiarid regions. We used hydrogen stable isotopes in plant and soil water to determine the potential water sources for Pinus tabuliformis and Hippophae rhamnoides in both pure and mixed plantations in the semiarid Chinese Loess Plateau during the vigorous growing season (June-August) in 2016. Stomatal conductance (g(c)), midday leaf water potential ((m)) and photosynthetic rate (P-r) were measured concurrently to analyse the physiological response. The P.tabuliformis in the pure plantation depended largely on shallow and middle soil layers regardless of precipitation amount, permitting this species to maintain stable (m) at the expense of P-r through stomatal control. In contrast, H.rhamnoides in the pure plantation shifted its water source from shallow to deep soil layers following decreases in precipitation, allowing this species to maintain stable g(c) and P-r at the expense of (m). Thus, P.tabuliformis and H.rhamnoides displayed isohydric and anisohydric behaviour, respectively. Additionally, both species in mixed plantations largely absorbed water from shallow soil layers and shifted to deep soil layers when precipitation decreased. Mixed afforestation significantly reduced (p<.05) P-r for P.tabuliformis and (m) for H.rhamnoides. Although contrasting physiological responses were adopted by these species, the major proportion of water resources were competitively obtained from similar soil depthsindicating that their mixed afforestation requires further investigation.
学科主题Environmental Sciences & Ecology ; Water Resources
出版地111 RIVER ST, HOBOKEN 07030-5774, NJ USA
语种英语
WOS记录号WOS:000434219200008
出版者WILEY
资助机构National Natural Science Foundation of China [41501576] ; National Natural Science Foundation of China [41501576] ; China Special Fund for Meteorological Research in the Public Interest [GYHY201506001-3] ; China Special Fund for Meteorological Research in the Public Interest [GYHY201506001-3] ; National Natural Science Foundation of China [41501576] ; National Natural Science Foundation of China [41501576] ; China Special Fund for Meteorological Research in the Public Interest [GYHY201506001-3] ; China Special Fund for Meteorological Research in the Public Interest [GYHY201506001-3]
源URL[http://ir.iswc.ac.cn/handle/361005/8238]  
专题水保所科研产出--SCI_2018--SCI
通讯作者Chen, YM (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
作者单位1.Chinese Acad Sci, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
4.Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Yunming Chen,Jie Wen,Senbao Lu,et al. Water use strategies for two dominant tree species in pure and mixed plantations of the semiarid Chinese Loess Plateau[J]. ECOHYDROLOGY,2018,11(4).
APA Yunming Chen.,Jie Wen.,Senbao Lu.,Chen, YM .,Yakun Tang.,...&Yuli Xie.(2018).Water use strategies for two dominant tree species in pure and mixed plantations of the semiarid Chinese Loess Plateau.ECOHYDROLOGY,11(4).
MLA Yunming Chen,et al."Water use strategies for two dominant tree species in pure and mixed plantations of the semiarid Chinese Loess Plateau".ECOHYDROLOGY 11.4(2018).

入库方式： OAI收割

来源：水土保持研究所

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