欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 2022, Vol. 33 ›› Issue (3): 829-836.doi: 10.13287/j.1001-9332.202202.034

• 研究论文 • 上一篇    下一篇

基于Ecopath模型的三门湾生态系统结构与功能

孔业富1,2, 尹成杰3, 王林龙1,2, 刘杨1,2, 林黎1,2, 康斌1,2*   

  1. 1中国海洋大学水产学院, 山东青岛 266003;
    2中国海洋大学教育部海水养殖重点实验室, 山东青岛 266003;
    3中国科学院水生生物研究所, 武汉 430072
  • 收稿日期:2021-04-07 接受日期:2021-11-18 出版日期:2022-03-15 发布日期:2022-09-15
  • 通讯作者: * E-mail: binkang@163.com
  • 作者简介:孔业富, 男, 1996年生, 硕士研究生。主要从事渔业资源生态学研究。E-mail: kyf1518140222@163.com
  • 基金资助:
    中央高校基本科研业务费(201964002)资助。

Ecosystem structure and function of Sanmen Bay based on Ecopath model.

KONG Ye-fu1,2, YIN Cheng-jie3, WANG Lin-long1,2, LIU Yang1,2, LIN Li1,2, KANG Bin1,2*   

  1. 1College of Fishery, Ocean University of China, Qingdao 266003, Shandong, China;
    2Ministry of Education Key Laboratory of Mariculture, Ocean University of China, Qingdao 266003, Shandong, China;
    3Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
  • Received:2021-04-07 Accepted:2021-11-18 Online:2022-03-15 Published:2022-09-15

摘要: 生态系统的结构决定生态系统的物质循环、能量流动和系统功能。本研究采用Ecopath模型,根据2017—2018年中国东海三门湾海洋生态实地调查数据,构建了三门湾生态系统的生态通道模型,描述了三门湾生态系统的能流结构,分析了其功能特征。结果显示: 三门湾生态系统营养级范围在1~3.80,能流渠道主要表现为牧食食物链,系统能流结构主要集中在前5个等级,系统平均能量传递效率为13.0%,系统初级生产者的能量传递效率为12.8%,系统碎屑的能量转换效率为14.5%。系统连接指数与系统杂食性指数分别为0.40和0.24,Finn循环指数为0.40,系统的Finn平均路径长度为2.06,总初级生产量与总呼吸量之比为13.59,表明当前三门湾生态系统处于不成熟阶段。本研究有助于理解中国近海港湾生态系统的结构特征和功能特点。

关键词: 生态通道模型, 半封闭海湾, 营养结构, 食物网, 生态系统特征

Abstract: Ecosystem structure determines material circulation, energy flow, and system function. Based on field investigation data in the Sanmen Bay, East China Sea from 2017 to 2018, ecological channel model was constructed by Ecopath, describing energy flow routes and functional characteristics of the Sanmen Bay ecosystem. Results showed that grazing food chain was the main energy circulation channel, and the trophic level of each functional group ranged from 1 to 3.80. Energy flow of the system was mainly concentrated in the first five levels, with an average energy conversion efficiency of 13.0%. Energy conversion efficiency was 12.8% and 14.5% from primary producers and debris, respectively. Connectance index (CI) and system omnivory index (SOI) were 0.40 and 0.24 respectively. Finn's cycling index (FIC) was 0.40, and Finn's mean path length (MPL) was 2.06. The ratio of total primary productivity to total respiration was 13.59. In conclusion, Sanmen Bay ecosystem was immature in material circulation and energy flow. This work is helpful to understand the structural and functional traits of coastal ecosystems in China.

Key words: ecopath model, semi-enclosed bay, trophic structure, food web, ecosystem attribute