| 植物光合作用限制因素与植被生产力研究进展 |
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| 引用本文： | 邢红爽,乌佳美,陈健,史作民.植物光合作用限制因素与植被生产力研究进展[J].生态学报,2023,43(12):5186-5199. |
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| 作者姓名： | 邢红爽 乌佳美 陈健 史作民 |
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| 作者单位： | 中国林业科学研究院森林生态环境与自然保护研究所, 国家林业和草原局森林生态环境重点实验室, 北京 100091;米亚罗森林生态系统定位观测研究站, 理县 623100;中国林业科学研究院森林生态环境与自然保护研究所, 国家林业和草原局森林生态环境重点实验室, 北京 100091;米亚罗森林生态系统定位观测研究站, 理县 623100;南京林业大学南方现代林业协同创新中心, 南京 210037 |
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| 基金项目： | 国家自然科学基金项目（32171506） |
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| 摘 要： | 随着全球气候变化的加剧，陆地生态系统中植物光合作用限制影响程度的增加已成为降低全球植被净初级生产力的主要因素。系统了解植物光合作用限制因素是科学评估植被生产力的重要前提，也是缓解植物光合作用限制，增加植物光合碳同化能力的先决条件。对植物光合作用限制因素进行了系统解析，分析了光合作用三种限制因素生化限制(Biochemical limitation,lb)、气孔限制(Stomatal limitation,ls)、叶肉限制(Mesophyll limitation,lm)的环境响应，重点讨论了叶肉限制及其影响机理，述评了光合作用限制定量分析方法及改善措施，最后以提高植被生产力为驱使目标，对未来植物光合作用限制因素研究提出以下内容：(1)基因工程技术与系统生物学数据相结合提高植被生产力；(2)气孔响应速度对植物光合作用的影响机制；(3)水通道蛋白(Aquaporin, AQPs)和碳酸酐酶(Carbonic anhydrase, CAs)感知环境信号变化的驱动基因。以期为未来气候变化背景下，深入认识和降低植物光合作用限制，提...
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| 关 键 词： | 光合作用 生化限制 气孔限制 叶肉限制 植被生产力 |
| 收稿时间： | 2022/3/29 0:00:00 |
| 修稿时间： | 2022/11/9 0:00:00 |
Research progress on limiting factors of plant photosynthesis and vegetation productivity |
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| XING Hongshuang,WU Jiamei,CHEN Jian,SHI Zuomin.Research progress on limiting factors of plant photosynthesis and vegetation productivity[J].Acta Ecologica Sinica,2023,43(12):5186-5199. |
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| Authors: | XING Hongshuang WU Jiamei CHEN Jian SHI Zuomin |
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| Institution: | Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing 100091, China;Miyaluo Research Station of Alpine Forest Ecosystem, Lixian 623100, China; Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing 100091, China;Miyaluo Research Station of Alpine Forest Ecosystem, Lixian 623100, China;Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China |
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| Abstract: | With the intensification of global climate change, the increase of plant photosynthetic limitations in terrestrial ecosystem has become the main internal factor to reduce the net primary productivity of global vegetation. It is an important prerequisite that we understand systematically the limiting factors of plant photosynthesis for the assessing vegetation productivity scientifically, alleviating photosynthetic limitations, and increasing the ability of plant photosynthetic carbon assimilation. The factors of plant photosynthetic limitations were explained systematically. The responses of three limiting factors of photosynthesis (biochemical limitation lb, stomatal limitation ls, mesophyll limitation lm) to different environments were analyzed, and the mesophyll limitation and its influence mechanisms were discussed emphatically. The quantitative analysis methods and improvement measures of photosynthetic limitations were reviewed. Finally, the following suggestions for the future research of plant photosynthetic limitations driven by the goal of improving vegetation productivity were formulated:(1) Combing genetic engineering technology and system biology data to improve vegetation productivity; (2) The mechanism for the impact of stomatal response speed on plant photosynthesis; (3) Driving genes of aquaporin (AQPs) and carbonic anhydrase (CAs) to perceive changes of environmental signals. This review is expected to provide some references for further understanding and reducing plant photosynthetic limitations nd improving the ability of photosynthetic carbon assimilation under the background of future climate change. |
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| Keywords: | photosynthesis biochemical limitation stomatal limitation mesophyll limitation vegetation productivity |
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