The responses of photosynthetic light response parameters to temperature among different seasons in a coniferous plantation of subtropical China
文献类型：期刊论文
| 作者 | Xu, Mingjie1; Wang, Qianyu1; Yang, Fengting; Zhang, Tao1; Zhu, Xianjin1; Cheng, Chuanpeng4; Wang, Huimin2,3,5 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 145页码:11 |
| 关键词 | Photosynthesis Subtropical plantation Eddy covariance Seasonal variability |
| ISSN号 | 1470-160X |
| DOI | 10.1016/j.ecolind.2022.109595 |
| 通讯作者 | Zhang, Tao(zhangt@syau.edu.cn) ; Wang, Huimin(wanghm@igsnrr.ac.cn) |
| 英文摘要 | A deep understanding of the responses of photosynthesis to air temperature (Ta) is essential for accurately assessing carbon budgets. Photosynthetic light response (PLR) parameters, including apparent quantum yield (alpha), maximum photosynthesis rate (Pmax) and daytime ecosystem respiration (Rd), are widely used to describe and quantify photosynthesis at the ecosystem scale. However, an understanding of the specific responses of PLR parameters to temperature in different seasons is still lacking. Therefore, this study aimed to address this issue based on 17-year continuous eddy covariance measurements (2003-2019) in a subtropical coniferous plantation. The responses of PLR parameters to air temperature (Ta) were obtained by classifying the observed net ecosystem exchange (NEE) and the corresponding photosynthetically active radiation (PAR) according to Ta with a class width of 2 degrees C. The general regulations showed that alpha, Rd and Pmax first increased with Ta until the optimal Ta and then decreased. The optimal Ta for alpha, Rd and Pmax were 28, 30 and 32 degrees C, and the inflection points were consistent with the soil water content (SWC) at depths of 5, 20, and 50 cm, respectively. For the specific seasonal responses, the optimal Ta for alpha and Rd was highest in summer, with a value as high as 30 degrees C, and the optimal Ta was highest in autumn, with a value of 32 degrees C. Interestingly, although the temperature environments were similar in spring and autumn, the optimal Ta for alpha was 2 degrees C higher in spring than in autumn, but the optimal Ta for Pmax was 6 degrees C higher in autumn than in spring. Some special response patterns were also found according to delicate studies on a seasonal scale, which were found to be related to SWCs at different depths. These findings reflected the inner function changes of the ecosystem and the potential effects of SWC, which should be given special attention when the PLR parameters are used in models to predict the carbon budgets in the future. |
| WOS关键词 | BIOCHEMICALLY BASED MODEL ; GROSS PRIMARY PRODUCTION ; NET ECOSYSTEM EXCHANGE ; CARBON-DIOXIDE ; USE EFFICIENCY ; INTERANNUAL VARIATION ; PHENOLOGICAL TRANSITIONS ; ENVIRONMENTAL-CONTROL ; SEMIARID SHRUBLAND ; FOREST ECOSYSTEMS |
| 资助项目 | National Natural Science Foundation of China[42175141] ; National Natural Science Foundation of China[32071585] ; China Postdoctoral Science Foundation[2021M692230] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000882030800003 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/186997]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Tao; Wang, Huimin |
| 作者单位 | 1.Shenyang Agr Univ, Coll Agron, Shenyang 110866, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Henan Univ Econ & Law, Coll Resources & Environm, Zhengzhou 450046, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Mingjie,Wang, Qianyu,Yang, Fengting,et al. The responses of photosynthetic light response parameters to temperature among different seasons in a coniferous plantation of subtropical China[J]. ECOLOGICAL INDICATORS,2022,145:11. |
| APA | Xu, Mingjie.,Wang, Qianyu.,Yang, Fengting.,Zhang, Tao.,Zhu, Xianjin.,...&Wang, Huimin.(2022).The responses of photosynthetic light response parameters to temperature among different seasons in a coniferous plantation of subtropical China.ECOLOGICAL INDICATORS,145,11. |
| MLA | Xu, Mingjie,et al."The responses of photosynthetic light response parameters to temperature among different seasons in a coniferous plantation of subtropical China".ECOLOGICAL INDICATORS 145(2022):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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