| 引用本文: | 郑尹齐, 史 娴, 陈 权, 乌 兰, 崔 嵬,
王文梅, 孙仲益, 谭 珂.海南岛红树林生态系统总初级生产力分布格局及形成机制[J].广西植物,2024,44(8):1415-1427.[点击复制] |
| ZHENG Yinqi, SHI Xian, CHEN Quan, WU Lan, CUI Wei,
WANG Wenmei, SUN Zhongyi, TAN Ke.Distribution patterns of gross primary production of mangrove ecosystems in Hainan Island and their driving mechanisms[J].Guihaia,2024,44(8):1415-1427.[点击复制] |
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| 海南岛红树林生态系统总初级生产力分布格局及形成机制 |
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郑尹齐1,2,3, 史 娴3,4, 陈 权3,5, 乌 兰3,5, 崔 嵬6,
王文梅1,2, 孙仲益3,5*, 谭 珂7*
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1. 海南省海洋地质资源与环境重点实验室, 海口 570206;2. 海南省生态环境地质调查院, 海口 570206;3. 海南大学 生态与
环境学院, 海口 570203;4. 黑龙江大学 水利电力学院, 哈尔滨 150006;5. 海南省农林环境过程与生态调控重点实验室,
海口 570228;6.6. 国家林业和草原局发展研究中心, 北京 100714;7.7. 广西壮族自治区
中国科学院 广西植物
研究所,广西喀斯特植物保育与恢复生态学重点实验室, 广西 桂林 541006
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| 摘要: |
| 红树林具有较高的光合速率和较低的光补偿点,表现出较高的总初级生产力(gross primary production,GPP),是“蓝碳”的重要组成。准确估算区域红树林生态系统GPP,并量化其限制因素贡献对于我国实现“双碳”目标具有重要意义。该文以海南岛红树林生态系统为研究对象,利用哨兵-2(Sentinel-2)影像和环境因子数据,基于红树植被光合作用-光能利用效率(MVP-LUE)模型估算了2016—2020年期间海南岛红树林生态系统GPP,并探究其时空分布格局及形成机制。结果表明:(1)在研究期间,海南岛红树林生态系统年GPP呈现出增长趋势,在空间上呈现出东部高于西部、北部高于南部的分布格局。(2)在形成机制上,海南岛红树林生态系统月均GPP时空分布格局受到多气象因素的综合影响,年内季节性上GPP在“旱→雨”过渡期随着空气温度(air temperature,Tair)的限制降低和光合有效辐射(photosynthetically active radiation,PAR)与海水温度的促进作用,展现出较高的GPP; 旱季中期Tair低,对GPP限制严重,但随着纬度的降低,红树林生态系统GPP受Tair限制的程度被减弱; 雨季则因较高的云覆盖而使PAR成为GPP的限制因素。该研究结果为评估区域红树林对全球碳循环的贡献提供了基础数据,为揭示影响红树林生态系统碳动态的关键环境因素提供了理论支撑。 |
| 关键词: MVP-LUE模型, 哨兵-2影像, 时空分布格局, 限制因子, 红树林生态系统, 海南岛 |
| DOI：10.11931/guihaia.gxzw202311022 |
| 分类号:Q948 |
| 文章编号:1000-3142(2024)08-1415-13 |
| 基金项目:海南省重点研发计划项目(ZDYF2022SHFZ111); 海南省自然科学基金高层次人才项目(322RC580, 422RC594); 海南省海洋地质资源与环境重点实验室开放基金(23-HNHYDZZYHJKF035)。 |
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| Distribution patterns of gross primary production of mangrove ecosystems in Hainan Island and their driving mechanisms |
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ZHENG Yinqi1,2,3, SHI Xian3,4, CHEN Quan3,5, WU Lan3,5, CUI Wei6,
WANG Wenmei1,2, SUN Zhongyi3,5*, TAN Ke7*
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1. Hainan Key Laboratory of Marine Geological Resources and Environment, Haikou 570206, China;2. Hainan Eco-Environmental Geological
Survey Institute, Haikou 570206, China;3. College of Ecology and Environment, Hainan University, Haikou 570203, China;4. College of
Water Conservancy and Electric Power, Heilongjiang University, Harbin 150006, China;5. Hainan Key Laboratory of Environmental
Processes and Ecological Regulation in Agriculture and Forestry, Haikou 570228, China;6.6. Development Research Center of State
Forestry and Grassland Administration, Beijing 100714, China;7.7. Guangxi Key Laboratory of Plant Conservation
and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous
Region and Chinese Academy of Sciences, Guilin 541006, Guangxi, China
1. Hainan Key Laboratory of Marine Geological Resources and Environment, Haikou 570206, China; 2. Hainan Eco-Environmental Geological
Survey Institute, Haikou 570206, China; 3. College of Ecology and Environment, Hainan University, Haikou 570203, China; 4. College of
Water Conservancy and Electric Power, Heilongjiang University, Harbin 150006, China; 5. Hainan Key Laboratory of Environmental
Processes and Ecological Regulation in Agriculture and Forestry, Haikou 570228, China; 6. Development Research Center of State
Forestry and Grassland Administration, Beijing 100714, China; 7. Guangxi Key Laboratory of Plant Conservation
and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous
Region and Chinese Academy of Sciences, Guilin 541006, Guangxi, China
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| Abstract: |
| 1. Hainan Key Laboratory of Marine Geological Resources and Environment, Haikou 570206, China; 2. Hainan Eco-Environmental Geological
Survey Institute, Haikou 570206, China; 3. College of Ecology and Environment, Hainan University, Haikou 570203, China; 4. College of
Water Conservancy and Electric Power, Heilongjiang University, Harbin 150006, China; 5. Hainan Key Laboratory of Environmental
Processes and Ecological Regulation in Agriculture and Forestry, Haikou 570228, China; 6. Development Research Center of State
Forestry and Grassland Administration, Beijing 100714, China; 7. Guangxi Key Laboratory of Plant Conservation
and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous
Region and Chinese Academy of Sciences, Guilin 541006, Guangxi, China |
| Key words: MVP-LUE model, Sentinel-2 imagery, spatiotemporal distribution pattern, limiting factors, mangrove ecosystem, Hainan Island |
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