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| 南海北部大陆架海洋生态系统演变的Ecopath模型比较分析 | |
| 引用本文： | 王晓红,李适宇,彭人勇.南海北部大陆架海洋生态系统演变的Ecopath模型比较分析[J].海洋环境科学,2009,28(3). |
| 作者姓名： | 王晓红 李适宇 彭人勇 |
| 作者单位： | 1. 中国科学院海洋研究所,山东,青岛,266071;中国科学院研究生院,北京,100039 2. 中山大学,环境科学与工程学院,广东,广州,510275 3. 青岛科技大学,环境与安全工程学院,山东,青岛,266000 |
| 摘 要： | 过度捕捞和环境恶化导致渔业资源和海洋生态系统逆向发展.采用EwE5.1(Ecopath with Ecosim)软件,对南海北部大陆架分别建立20世纪80年代末期(1989～1992年)、20世纪90年代末期(1997～2000年)和21世纪初期三个代表时间段的Ecopath(生态通道模型)模型.通过三阶段的流量、生物量、生产量、捕捞量、系统总流量、总循环流量以及Finn's循环指数和Finn's平均路径长度等方面的比较分析,得出近20 a的过度捕捞导致系统与渔业资源逐渐"退化".20世纪90年代末期休渔政策对此有一些缓和作用,但总趋势不变. |
| 关 键 词： | 南海北部大陆架 海洋生态系统 Ecopath模型 |
Establishment and comparative analysis of Ecopath model of ecosystem evolvement in northern continental shelf of South China Sea |
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| WANG Xiao-hong,LI Shi-yu,PENG Ren-yong.Establishment and comparative analysis of Ecopath model of ecosystem evolvement in northern continental shelf of South China Sea[J].Marine Environmental Science,2009,28(3). | |
| Authors: | WANG Xiao-hong LI Shi-yu PENG Ren-yong |
| Institution: | 1.Institute of Oceanology;CAS;Qingdao 266071;China;2.Graduate University of the Chinese Academy of Sciences;Beijing 100039;3.School of Environmental Science and Engineering;SunYat-sen University;Guangzhou 510275;4.School of Environmental and Safe Engineering;Qingdao University of Science and Technology;Qingdao 266000;China |
| Abstract: | The Over-fishing and environmental deterioration have caused the fishery resources and ocean ecosystems to develop adversely.Three Ecopath models for the northern continental shelf of South China Sea were established in end of 1980's,1990's and the early 21st,respectively,using software EwE5.1.By comparing and analyzing the characteristic parameters of the three decades including throughput,biomass,production,catch yields,total system throughput,total cycling throughputs,Finn's cycling index and Finn's mean... |
| Keywords: | northern continental shelf of South China Sea marine ecosystem Ecopath model |
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