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生态学杂志 ›› 1994, Vol. ›› Issue (2): 40-43.

• 研究报告 • 上一篇    下一篇

赤松毛虫消长规律生命表分析

慕宗昭1, 倪玉乐2, 孙家江2   

  • 收稿日期:1991-10-30 修回日期:1991-12-25 出版日期:1994-04-10

Life Table Analysis of Dendrolimus spectabilis Growth and Decline Patterns

Mu Zongzhao1, Ni Yule2, Sun Jiajiang2   

  1. 1. ShandongForestry Bureau, Jinan 250014;
    2. Wendeng Municipal Forestry Bureau, 264400
  • Received:1991-10-30 Revised:1991-12-25 Online:1994-04-10

关键词: 景观格局指数, 城市热岛, 景观格局, 地表温度, 北京

Abstract: A six years life table analysis is made for a Dendrolimus spectabillis population in Wendeng city of Shandong province. The key period affecting its population change is larva peried before and after winter time. Wasps and birds predation,pathogen affection and low temperature during larva period after winter,as well as ants and mantis predation and precipitation during larva period before winter are the main reasons for the annual change of Dendrolimus spectabillis population.The population tendency index is defined as I=5.0440.

Key words: landscape pattern metrics, urban heat island, landscape pattern, land surface temperature, Beijing.