Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s11104-017-3332-8 |
Differences in water-use strategies along an aridity gradient between two coexisting desert shrubs (Reaumuria soongorica and Nitraria sphaerocarpa): isotopic approaches with physiological evidence | |
Zhang, Cicheng1,2; Li, Xiaoyan1,2; Wu, Huawu3,4; Wang, Pei1,2; Wang, Yang2; Wu, Xiuchen1,2; Li, Wei2; Huang, Yongmei1,2 | |
通讯作者 | Li, Xiaoyan |
来源期刊 | PLANT AND SOIL
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ISSN | 0032-079X |
EISSN | 1573-5036 |
出版年 | 2017 |
卷号 | 419期号:1-2页码:169-187 |
英文摘要 | Understanding the responses of different plant species to changes in available water sources is critical for accurately modeling and predicting species dynamics. Our study aimed to explore whether there were differences in water-use strategies between the two coexisting shrubs (Reaumuria soongorica and Nitraria sphaerocarpa) in response to different amounts of summer precipitation. We conducted 3 years of field observations at three sites along an aridity gradient from the middle to lower reaches of the Heihe River basin, northwestern China. Stable oxygen composition (delta O-18) in plant xylem water, soil water and groundwater were analyzed concurrently with ecophysiological measurements at monthly intervals during the growing seasons. Water source for coexisting R. soongorica and N. sphaerocarpa did not differ at the sites with high precipitation, but significantly differed in more arid locations. The N. sphaerocarpa was more sensitive to summer precipitation than R. soongorica in terms of predawn water potential, stomatal conductance and foliage carbon-isotope discrimination. The plants relying on groundwater maintained consistent water use strategies, but not plants that took up precipitation-derived water. We also found that the difference in water source uptake between the coexisting species was more apparent in more arid locations. |
英文关键词 | Hydrological niche Reaumuria soongorica Nitraria sphaerocarpa Water use pattern delta O-18 delta C-13 |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000415350500013 |
WOS关键词 | PLANT-COMMUNITIES ; SOIL-WATER ; CARBON-ISOTOPE ; ROOTING DEPTH ; HEIHE RIVER ; SHALLOW ; SUMMER ; ECOSYSTEM ; ACQUISITION ; RESPONSES |
WOS类目 | Agronomy ; Plant Sciences ; Soil Science |
WOS研究方向 | Agriculture ; Plant Sciences |
来源机构 | 北京师范大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/201510 |
作者单位 | 1.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China; 2.Beijing Normal Univ, Sch Nat Resources, Fac Geog Sci, Beijing 100875, Peoples R China; 3.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Key Lab Watershed Geog Sci, Nanjing 210008, Jiangsu, Peoples R China; 4.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing 210008, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Cicheng,Li, Xiaoyan,Wu, Huawu,et al. Differences in water-use strategies along an aridity gradient between two coexisting desert shrubs (Reaumuria soongorica and Nitraria sphaerocarpa): isotopic approaches with physiological evidence[J]. 北京师范大学,2017,419(1-2):169-187. |
APA | Zhang, Cicheng.,Li, Xiaoyan.,Wu, Huawu.,Wang, Pei.,Wang, Yang.,...&Huang, Yongmei.(2017).Differences in water-use strategies along an aridity gradient between two coexisting desert shrubs (Reaumuria soongorica and Nitraria sphaerocarpa): isotopic approaches with physiological evidence.PLANT AND SOIL,419(1-2),169-187. |
MLA | Zhang, Cicheng,et al."Differences in water-use strategies along an aridity gradient between two coexisting desert shrubs (Reaumuria soongorica and Nitraria sphaerocarpa): isotopic approaches with physiological evidence".PLANT AND SOIL 419.1-2(2017):169-187. |
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