Extreme natural drought enhances interspecific facilitation in semiarid agroforestry systems
文献类型：期刊论文
| 作者 | Gao, Xiaodong1,2,3; Liu, Zhipeng4; Zhao, Xining1,2,3; Ling, Qiang3; Huo, Gaopeng3; Wu, Pute1,2,3 |
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2018-10-01 |
| 卷号 | 265页码:444-453 |
| 关键词 | Intercropping Water use Soil water Stable isotopes Interaction Bayesian mixing model |
| ISSN号 | 0167-8809 |
| DOI | 10.1016/j.agee.2018.07.001 |
| 通讯作者 | Zhao, Xining(zxn@nwafu.edu.cn) |
| 英文摘要 | Agroforestry is a widely advocated adaptation strategy for enhancing agricultural resilience to extreme climates. However, it is somewhat controversial and there is limited evidence regarding its efficacy in semiarid regions. Here we describe studies on jujube agroforestry regimes using two different cash crops: the annual fodder species rape (Brassica napus) and the perennial daylily (Hemerocallis fulva). The jujube agroforestry systems were characterized with respect to their interspecific water interactions and their responses to extreme natural drought using stable isotopic techniques and in situ soil water observations in China's semiarid Loess Plateau region. We found that agroforestry altered the jujube trees' water sources but its impact depended on soil wetness: compared to monocultures, jujube trees in agroforestry systems generally shifted to deeper water under dry conditions but to shallower water under wet conditions. Complementary water use between jujube trees and crops was observed on most sampling dates, but there was clear evidence of water competition in the shallow layer under relatively wet conditions. Furthermore, a simple index, Relative Difference in Soil Water content (RDSW), was developed to indicate interspecific water interactions under various wetness conditions. It was found that facilitative interspecific interactions were clearly enhanced in both agroforestry systems during extreme drought. In addition, jujube yields in agroforestry systems were clearly higher than in monoculture. These findings demonstrate that agroforestry is a climate-smart agricultural system and can increase the resilience of semiarid jujube plantations to extreme real-world drought. |
| WOS关键词 | LOESS PLATEAU ; SOIL-WATER ; CLIMATE-CHANGE ; COCOA AGROFORESTRY ; PLANT-COMMUNITIES ; CHINA ; COMPETITION ; TREES ; MANAGEMENT ; MOISTURE |
| 资助项目 | National Key R&D Program of China[2016YFC0400204] ; National Natural Science Foundation of China[41571506] ; National Natural Science Foundation of China[41771316] ; National Natural Science Foundation of China[51579212] ; Integrative Science Technology Innovation Engineering Project of Shaanxi[2016KTZDNY-01-03] ; Young-Talent Nurturing program of the Northwest AF University |
| WOS研究方向 | Agriculture ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000443664900045 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Integrative Science Technology Innovation Engineering Project of Shaanxi ; Young-Talent Nurturing program of the Northwest AF University |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/54312]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhao, Xining |
| 作者单位 | 1.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 3.Nat Engn Res Ctr Water Saving & Irrigat Technol, Yangling 712100, Shaanxi, Peoples R China 4.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Xiaodong,Liu, Zhipeng,Zhao, Xining,et al. Extreme natural drought enhances interspecific facilitation in semiarid agroforestry systems[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2018,265:444-453. |
| APA | Gao, Xiaodong,Liu, Zhipeng,Zhao, Xining,Ling, Qiang,Huo, Gaopeng,&Wu, Pute.(2018).Extreme natural drought enhances interspecific facilitation in semiarid agroforestry systems.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,265,444-453. |
| MLA | Gao, Xiaodong,et al."Extreme natural drought enhances interspecific facilitation in semiarid agroforestry systems".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 265(2018):444-453. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。