热带海洋学报 ›› 2025, Vol. 44 ›› Issue (4): 187-199.doi: 10.11978/2024141CSTR: 32234.14.2024141

• 海洋环境科学 • 上一篇    下一篇

幼龄红树生物量模型及幼林红树林碳储量研究*

胡鑫1(), 熊兰兰1(), 陈顺洋2, 张黄琛1, 邹易阳1, 张吉超1, 刘东熙1, 何佳潞1, 吴于琪1, 朱振杰1   

  1. 1.广东省海洋发展规划研究中心, 广东 广州 510220
    2.自然资源部第三海洋研究所, 福建 厦门 361005
  • 收稿日期:2024-07-18 修回日期:2024-08-02 出版日期:2025-07-10 发布日期:2025-07-31
  • 通讯作者: 胡鑫, 熊兰兰
  • 作者简介:

    胡鑫(1993—), 男, 江西省吉安市人, 博士, 从事海洋生态学研究。email:

    *感谢惠州市林业局、惠东县林业局、惠东县自然资源局和惠东县好招楼湿地公园管理处对本研究的支持

  • 基金资助:
    广东省自然资源厅科技项目(GDZRZYKJ2023002)

Study on biomass models of juvenile mangroves and carbon storage in young mangrove ecosystems*

HU Xin1(), XIONG Lanlan1(), CHEN Shunyang2, ZHANG Huangchen1, ZOU Yiyang1, ZHANG Jichao1, LIU Dongxi1, HE Jialu1, WU Yuqi1, ZHU Zhenjie1   

  1. 1. Guangdong Center for Marine Development Research, Guangzhou 510220, China
    2. Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
  • Received:2024-07-18 Revised:2024-08-02 Online:2025-07-10 Published:2025-07-31
  • Contact: HU Xin, XIONG Lanlan
  • Supported by:
    Science and Technology Projects of Guangdong Provincial Department of Natural Resources(GDZRZYKJ2023002)

摘要:

随着全球气候变化日益加剧, 红树林作为重要的滨海蓝碳生态系统备受关注。本研究旨在构建幼龄红树生物量模型, 评估广东考洲洋红树林碳储量, 为快速准确评估人工营造幼林红树林碳储量提供经验方法和科学依据。以考洲洋幼龄白骨壤(Avicennia marina)、红海榄(Rhizophora stylosa)、秋茄(Kandelia obovata)、木榄(Bruguiera gymnorhiza)和桐花树(Aegiceras corniculatum)为研究对象, 使用基径(basal diameter, D)和株高(height, H)及其派生的复合变量构建红树植物生物量与测树因子之间最佳拟合模型, 并进一步评估考洲洋幼林红树林生态系统碳储量。研究发现, 复合变量生物量模型优于单一变量生物量模型(桐花树地下生物量模型除外)。白骨壤、红海榄、木榄和桐花树最优生物量模型均为幂函数模型, 秋茄最优生物量模型为线性模型。考洲洋人工营造幼林红树林碳密度为(91.26±17.32)Mg C·hm-2, 碳储量约为35964.65Mg C, 土壤碳库占考洲洋幼林红树林碳库78.3%~98.5%。红树植物碳密度从大到小依次为桐花+秋茄群落、红海榄+白骨壤群落、白骨壤群落、木榄群落。本研究结果对广东乃至全国人工营造红树林碳储量评估和生态修复具有重要参考价值。

关键词: 幼龄红树, 生物量模型, 碳密度, 人工营造红树林, 考洲洋

Abstract:

As global climate change intensifies, mangroves—a vital coastal blue carbon ecosystem—have garnered increasing attention. This study aimed to develop biomass models for juvenile mangroves and assess the carbon storage of young mangrove ecosystems in Kaozhouyang Bay. The results provide empirical methods and a scientific basis for the rapid and accurate assessment of carbon stocks in artificially planted young mangroves. The study focuses on five artificially planted juvenile mangrove species in Kaozhouyang Bay: Avicennia marina, Rhizophora stylosa, Kandelia obovata, Bruguiera gymnorhiza, and Aegiceras corniculatum. Various factors derived from basal diameter (D) and tree height (H) were used to construct optimal allometric equations between biomass and dendrometric parameters. Furthermore, the best-performing biomass models were applied to estimate vegetation carbon storage and ecosystem carbon storage in the artificially planted mangroves of Kaozhouyang Bay. The findings indicated that multivariable models generally outperformed univariable models, except for the below-ground biomass model of Aegiceras corniculatum. The optimal biomass models for Avicennia marina, Rhizophora stylosa, Bruguiera gymnorhiza, and Aegiceras corniculatum were power function models, whereas linear models best fit Kandelia obovata. The carbon density of the artificially planted young mangrove ecosystems in Kaozhouyang Bay was (91.26±17.32) Mg C·hm-2, with a total carbon stock of approximately 35964.65 Mg C. Soil carbon constituted 78.3% to 98.5% of the total carbon stock in these ecosystems. Among the different mangrove communities, vegetation carbon density ranked as follows (from highest to lowest): Aegiceras corniculatum + Kandelia obovata communities, Rhizophora stylosa + Avicennia marina communities, Avicennia marina community, and Bruguiera gymnorhiza community. These results offer valuable insights for assessing carbon storage and guiding ecological restoration efforts in artificially planted mangroves in Guangdong Province and nationwide.

Key words: juvenile mangroves, biomass models, carbon density, artificial mangrove, Kaozhouyang Bay

中图分类号: 

  • P76