摘要
建立了一个具阶段结构和竞争关系的两种群生物经济模型 ,分别获得了一个或两个种群绝灭和两种群持久生存的充分必要条件 .
In this paper,we establish a mathematical model of two species with stage structure and competitive relation,obtain the necessary and sufficient condition for the permanence of two species and the extinction of one species or two species.We also obtain the optimal harvesting policy and the critical situations of harvesting for the sustainable development.
出处
《信阳师范学院学报（自然科学版）》
CAS
2002年第2期129-135,共7页
Journal of Xinyang Normal University(Natural Science Edition)
基金
Supported by the Natural Science Foundation of Henan Province(9940 5 16 0 0 )
