| Carbon Isotope Constraints on Plant Water Use Efficiency in a Tropical Invaded Ecosystem | |
Yan, Ya-Xin; Hu, Chao-Chen; Lei, Yan-Bao ; Tan, Yun-Hong; Liu, Xue-Yan
| |
| 2025 | |
| Source Publication | JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
 |
| ISSN | 2169-8953 |
| Volume | 130Issue:10Pages:- |
| Abstract | Exotic plant invasions have caused substantial changes in plant diversity and the functioning of terrestrial ecosystems. One of the key determinants of plant invasion success is its resource utilization strategy, such as water utilization strategies. However, how iWUE differs between exotic and native plants, and between natives under invasion and non-invasion, remains unclear, limiting our understanding of the role of water use strategies in plant invasion and coexistence. In this study, leaf delta C-13 was measured to quantify the iWUE of 19 native C-3 and nine native C-4 species under no invasion, two exotic C-3 species (Ageratina adenophora and Chromolaena odorata), and 16 C-3 and 10 C-4 co-occurring natives in a tropical ecosystem of southwestern China. The significantly higher iWUE of invading plants compared with co-occurring C-3 species was associated with their invasion success and spread. Under invasion, the iWUE of coexisting native C-3 plants decreased by 42 +/- 30% possibly due to enhanced water losses associated with nitrogen acquisition. Oppositely, native C-4 plants increased their iWUE by 65 +/- 140%, along with enhanced photosynthetic N and NH4+ assimilations, which supported greater productivity. These results highlight the critical role of water use and its coupling with other resource use strategies in facilitating exotic plant invasion and promoting native plant coexistence. This work is of great significance for advancing the understanding of mechanisms shaping plant community composition and for informing the management of water and nutrient resources to control exotic plant invasion and sustain plant diversity in tropical ecosystems. |
| Keyword | exotic plant invasion stable carbon isotope nitrogen water use efficiency native plant plant coexistence |
| Subject Area | Environmental Sciences ; Geosciences, Multidisciplinary |
| DOI | 10.1029/2025JG008997 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001585399300001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/15650 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.[Yan, Ya-Xin 2.Tianjin Univ, Sch Earth Syst Sci, Tianjin, Peoples R China 3.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang, Peoples R China 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu, Peoples R China 5.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Xishuangbanna, Peoples R China |
| Recommended Citation GB/T 7714 | Yan, Ya-Xin,Hu, Chao-Chen,Lei, Yan-Bao,et al. Carbon Isotope Constraints on Plant Water Use Efficiency in a Tropical Invaded Ecosystem[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2025,130(10):-. |
| APA | Yan, Ya-Xin,Hu, Chao-Chen,Lei, Yan-Bao,Tan, Yun-Hong,&Liu, Xue-Yan.(2025).Carbon Isotope Constraints on Plant Water Use Efficiency in a Tropical Invaded Ecosystem.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,130(10),-. |
| MLA | Yan, Ya-Xin,et al."Carbon Isotope Constraints on Plant Water Use Efficiency in a Tropical Invaded Ecosystem".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 130.10(2025):-. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Carbon Isotope Const（1399KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment