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生态学杂志 ›› 1998, Vol. ›› Issue (2): 7-10.

• 研究报告 • 上一篇    下一篇

大鹏湾反曲原甲藻种群变化率动态模型研究

黄贯虹1, 郭远琼2, 黄伟建3   

  1. 1. 广东民族学院计算机科学系, 广州510633;
    2. 暨南大学华侨医院计算机室, 广州510632;
    3. 暨南大学水生生物研究所, 广州510632
  • 收稿日期:1996-12-17 出版日期:1998-04-10
  • 基金资助:
    华南生物科学与技术研究中心和国务院侨办资助

Study of a Model on Change Ratio of the Population Densities Dynamics of Prorocentrun sigmoides Bohm in the Dapeng Bay, South China Sea

Huang Guanhong1, Guo Yuanqiong2, Huang Weijian3   

  1. 1. Department of Computer Science and Information Management, Guangdong Institute for Nationalities, Guangzhou 510633;
    2. Computer Room of Overseas Chinese Hospital, Jinan University, Guangzhou 510632;
    3. Institute of Hydrobiology, Jinan University, Guangzhou 510632
  • Received:1996-12-17 Online:1998-04-10

关键词: 森林恢复方式, 生态系统服务, 土壤质量, 主成分分析, 红壤区

Abstract: A change ratio model was made to analysis population density dynamic of Prorocentrun sigmoides Bohm in the Dapeng Bay, South China Sea. The data were based on the samples taken at intervals of 2nd from 30 March to 10 June 1990. On the basis of conductions of the previous papers, early days density and change ratio of Prorocentrun sigmoides Bohm, temperature and its change ratio, concentrations and change ratio of dissolved inorganic nitrogen(DIN, including NO3-N and NO2-N)and inorganic phosphate(DIP)were identified the relationship with change ratio of later stage Prorocentrun sigmoides Bohm. Using calculus of variations, the authors identifiedthe change ratio model of the population density dynamics of Prorocentrun sigmoides Bohm. Six change ratio models were established. The formula is: d Qt/dt=a0+a1*d Qt-1/dt+a2Qt-1 +a3Tt+a4*d Tt/dt+a5Nt+a6*d Nt/dt+a7Pt+a8*d Pt/dt The fitting degree between the calculations and field data was quite accurate. The results provided a scientific basis for controlling redtide of Prorocentrun sigmoides Bohm.

Key words: forest restoration approach, ecosystem services, soil quality, principal component analysis, red soil region.