| Intercrops improve surface water availability in rubber-based agroforestry systems | |
Yang, Bin1; Meng, Xianjing2; Singh, Ashutosh Kumar1; Wang, Pingyuan1,3 ; Song, Liang1; Zakari, Sissou1; Liu, Wenjie1
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| 2020 | |
| Source Publication | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
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| ISSN | 0167-8809 |
| Volume | 298Pages:- |
| Abstract | 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. |
| Keyword | SOIL-WATER IN-DEPTH TREES DROUGHT EVAPOTRANSPIRATION TRANSPIRATION PLANTS |
| Subject Area | Agriculture ; Environmental Sciences & Ecology |
| DOI | 10.1016/j.agee.2020.106937 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000533507200004 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/11668 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 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 |
| Recommended Citation 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):-. |
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| Intercrops improve s（3170KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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