Intercrops improve surface water availability in rubber-based agroforestry systems
文献类型：期刊论文
| 作者 | Yang, Bin1; Meng, Xianjing2; Singh, Ashutosh Kumar1; Wang, Pingyuan1,3 ; Song, Liang1; Zakari, Sissou1; Liu, Wenjie1
|
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2020 |
| 卷号 | 298页码:- |
| 关键词 | SOIL-WATER IN-DEPTH TREES DROUGHT EVAPOTRANSPIRATION TRANSPIRATION PLANTS |
| ISSN号 | 0167-8809 |
| DOI | 10.1016/j.agee.2020.106937 |
| 英文摘要 | Despite the development of rubber agroforestry systems for ecological and economic benefits in Southeast Asia, knowledge of their water uptake dynamics and interspecific water interactions remains limited. The objective of this study is to reveal the water relations (i.e., competition/complementarity) between rubber (Hevea brasiliensis) trees and different kinds of intercrops. We investigated the stable isotopes (delta D and delta O-18), fine root length density, and soil water content (SWC) under three agroforestry practices and one rubber monoculture across a year (2017/2018). Our results indicated that rubber trees acquired more than 40.5 +/- 21.3 % of their water from shallow (0-20 cm) soil stratum, as do perennial galangal (Alpinia officinarum), tea (Camellia sinensis), and cocoa (Theobroma cacao). The complementarity hypothesis was not supported for rubber trees and the intercrops. In the dry season (November to April), there was strong interspecific competition for shallow water resources where the intercropping was practiced. However, intercropping increased the available soil water, enabling rubber trees to acquire more (9.4-24.3 %) shallow soil water. In the wet season (May to October), interspecific water competition was less pronounced based on the relative difference in soil water content (RDSW). Higher relative water content, in the order rubber-galangal > rubber-tea > rubber-cocoa, further showed that facilitative effects dominated interspecific water competition in all the agroforestry practices. This information regarding water relations between rubber trees and their intercrops will be essential to optimize land and water resource utilization in this region. |
| 学科主题 | Agriculture ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000533507200004 |
| 源URL | [http://ir.xtbg.org.cn/handle/353005/11668]  |
| 专题 | 西双版纳热带植物园_2012年后新成立研究组 |
| 作者单位 | 1.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Menglun 666303, Yunnan, Peoples R China 2.Chinese Acad Sci, Ctr Plant Ecol, Core Bot Gardens, Menglun 666303, Yunnan, Peoples R China 3.Thermo Fisher Sci, Shanghai 201206, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Bin,Meng, Xianjing,Singh, Ashutosh Kumar,et al. Intercrops improve surface water availability in rubber-based agroforestry systems[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2020,298:-. |
| APA | Yang, Bin.,Meng, Xianjing.,Singh, Ashutosh Kumar.,Wang, Pingyuan.,Song, Liang.,...&Liu, Wenjie.(2020).Intercrops improve surface water availability in rubber-based agroforestry systems.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,298,-. |
| MLA | Yang, Bin,et al."Intercrops improve surface water availability in rubber-based agroforestry systems".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 298(2020):-. |
入库方式： OAI收割
来源：西双版纳热带植物园
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。