Water use characteristics of native and exotic shrub species in the semi-arid Loess Plateau using an isotope technique
文献类型：期刊论文
| 作者 | Wang, Jian1; Fu, Bojie1; Lu, Nan1; Wang, Shuai4; Zhang, Li3 |
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2019 |
| 卷号 | 276页码:55-63 |
| 关键词 | Stable isotope Water use Native species Loess Plateau MixSIAR Root distribution |
| ISSN号 | 0167-8809 |
| DOI | 10.1016/j.agee.2019.02.015 |
| 文献子类 | Article |
| 英文摘要 | Knowledge of the processes underlying plant water use characteristics is critical for understanding soil-plant interactions and evaluating plant adaptability in water-limited ecosystems. The vegetation on the Loess Plateau has-dramatically changed due to the implementation of the Grain-for-Green Project from 1999. Despite this, water use characteristics of native and exotic shrub species remain poorly understood in this region. In this study, seasonal variations of water use characteristics of Spiraea pubescens (a native shrub) and Hippophae rhamnoides (an exotic shrub) in the Loess Plateau were investigated by examining the delta H-2 and delta O-2 of xylem and soil water from different soil layers within 300 cm of the surface, as well as the delta C-13 in plant leaves. Results revealed that H. rhamnoides and S. pubescens derived (similar to)80% of their water sources from the 0-120 cm soil layer during the growing seasons. However, H. rhamnoides absorbed higher proportions of deep soil water (120-300 cm) as the growing season progressed. H. rhamnoides flexibly converted its water source between shallow (0-40 cm) and deep soil layers. Moreover, H. rhamnoides had higher leaf-level water use efficiency than that of S. pubescens. These results suggest that H. rhamnoides has a greater degree of ecological plasticity in water use. Flexible water use characteristics are relevant to functionally dimorphic root systems as an adaptation strategy for the plants in water-limited environments. These findings indicate that water use characteristics of these plants should be considered when exotic species are introduced for revegetation in semiarid regions. |
| 学科主题 | Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences |
| 出版地 | AMSTERDAM |
| 电子版国际标准刊号 | 1873-2305 |
| WOS关键词 | STABLE-ISOTOPES ; USE EFFICIENCY ; SOIL-MOISTURE ; FOREST ; PLANTS ; ECOSYSTEM ; DROUGHT ; TREES ; STRATEGIES ; RESPONSES |
| WOS研究方向 | Agriculture ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000468248300006 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41390462] ; National Key Research and Development Program of China [2016YFC0501602] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/19637]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Eco Environm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jian,Fu, Bojie,Lu, Nan,et al. Water use characteristics of native and exotic shrub species in the semi-arid Loess Plateau using an isotope technique[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2019,276:55-63. |
| APA | Wang, Jian,Fu, Bojie,Lu, Nan,Wang, Shuai,&Zhang, Li.(2019).Water use characteristics of native and exotic shrub species in the semi-arid Loess Plateau using an isotope technique.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,276,55-63. |
| MLA | Wang, Jian,et al."Water use characteristics of native and exotic shrub species in the semi-arid Loess Plateau using an isotope technique".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 276(2019):55-63. |
入库方式： OAI收割
来源：植物研究所
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