| The impact of elevated CO 2 concentration on photosynthesis, growth and hydraulics of evergreen and deciduous tree seedlings from a subtropical forest in Southwest China | |
Fu, Pei-Li ; Zhang, Ya2; Qi, Jin-Hua; Zhang, Yong-Jiang; Hao, Guang-You; Finnegan, Patrick M.; Yan, Qiao-Shun; Fan, Ze-Xin
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| 2024 | |
| Source Publication | AGRICULTURAL AND FOREST METEOROLOGY
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| ISSN | 0168-1923 |
| Volume | 352Issue:_Pages:_ |
| Abstract | Elevated CO2 concentration (eCO2) in the atmosphere is expected to impact plant water relations and growth in several ecosystems across the globe. However, we still know little about such impact on tree species in subtropical regions. The present study investigated the impact of eCO2 on leaf gas exchange, nitrogen and phosphorus concentrations, leaf and stem hydraulic conductivity, and growth of seedlings of four evergreen and four deciduous tree species from a subtropical forest in Southwest China. We found that both evergreen and deciduous tree species at eCO2 had higher leaf area-based photosynthetic rates and lower leaf stomatal conductance. Further, leaf mass-based photosynthetic rate was more enhanced in evergreen than in deciduous trees at eCO2. Biomass of evergreen and deciduous species was significantly higher at eCO2, with large species-specific variation among the evergreen species. Leaf-specific hydraulic conductivity was more enhanced in deciduous tree species than that of evergreen tree species with eCO2, which was mainly driven by the increase of biomass at eCO2. Interestingly, eCO2 significantly strengthened the coordination of stem hydraulic conductivity with leafgas exchange, leaf phosphorus concentration, and plant biomass across evergreen and deciduous species. These results highlighted greater enhancement of photosynthesis and greater species-specific variation in biomass at eCO2 for evergreen species compared to deciduous species, and stronger hydraulic-photosynthesis correlations at eCO2 than at aCO2 for tree species from subtropical forests. The present study provides important insights on the potential impacts of eCO2 on plant eco-physiology, growth and forest succession in a subtropical forest under global climate change. |
| Keyword | Biomass allocation CO 2 fertilization Photosynthesis Stem hydraulics Subtropical forest |
| Subject Area | Agronomy ; Forestry ; Meteorology & Atmospheric Sciences |
| DOI | 10.1016/j.agrformet.2024.110021 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001236297800001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/14253 |
| 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, Beijing 666303, Yunnan, Peoples R China 2.Chinese Acad Sci, Ailaoshan Stn Subtrop Forest Ecosyst Studies, Xishuangbanna Trop Bot Garden, Jingdong 676209, Yunnan, Peoples R China 3.Anhui Normal Univ, Coll Life Sci, Anhui Prov Key Lab Conservat & Exploitat Biol Reso, Wuhu 241000, Anhui, Peoples R China 4.Univ Maine, Sch Biol & Ecol, Maine, NY 04469 USA 5.Inst Appl Ecol, Chinese Acad Sci, CAS Key Lab Forest Ecol & Management, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 6.Finnegan, Patrick M.] Univ Western Australia, Sch Biol Sci, Perth, WA 6009, Australia |
| Recommended Citation GB/T 7714 | Fu, Pei-Li,Zhang, Ya,Qi, Jin-Hua,et al. The impact of elevated CO 2 concentration on photosynthesis, growth and hydraulics of evergreen and deciduous tree seedlings from a subtropical forest in Southwest China[J]. AGRICULTURAL AND FOREST METEOROLOGY,2024,352(_):_. |
| APA | Fu, Pei-Li.,Zhang, Ya.,Qi, Jin-Hua.,Zhang, Yong-Jiang.,Hao, Guang-You.,...&Fan, Ze-Xin.(2024).The impact of elevated CO 2 concentration on photosynthesis, growth and hydraulics of evergreen and deciduous tree seedlings from a subtropical forest in Southwest China.AGRICULTURAL AND FOREST METEOROLOGY,352(_),_. |
| MLA | Fu, Pei-Li,et al."The impact of elevated CO 2 concentration on photosynthesis, growth and hydraulics of evergreen and deciduous tree seedlings from a subtropical forest in Southwest China".AGRICULTURAL AND FOREST METEOROLOGY 352._(2024):_. |
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