自然环境与生物种群的生灭关系  

The Relationship between Existence and Extinction of Natural Environment and Group of Biological Species

作　　者：李文深[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》1999年第3期53-59,共7页Journal of Northeast Forestry University

基　　金：黑龙江省自然科学基金

摘　　要：当今世界面临三大问题──人口、资源与环境,仅环境问题已引起全球性关注,保护环境关系到人类乃至地球的前途和命运。从定量出发,建立环境与生命关系的数学模型；并以解的死核概念,表明环境污染超越临界状态,生物必将死亡。而且随着污染程度日趋严重,死核区域将会扩大,甚至整个区域内生物种群灭绝。Nowadays,population,natural resources and environment are three important issues all over the world, even only one of the three issues the environment has been given rising to pay more attention to.Environmental protection has an important bearing on the future and destiny of the human beings and even the earth. In this paper, a mathematical model for environment and life by quantitative analysis was constructed using the concept of dead-core. it shows that if the pollution of the environment is over the limit, living things will die,and with expanding and spreading of the pollution,the zone of the dead-core will be extended and even in the whole zone the group of biological species will become extinct.

关 键 词：环境污染 生物种群 生灭关系 自然环境 

分 类 号：Q141[生物学—生态学]