基于Type-2模糊贴近度在生态上的应用  

Type-2 Fuzzy Similarity Measures in The Application of Ecosystem

作　　者：李医民[1] 王晓梅[1] 

机构地区：[1]江苏大学理学院,江苏镇江212013

出　　处：《数学的实践与认识》2010年第20期74-82,共9页Mathematics in Practice and Theory

基　　金：国家自然科学基金(11072090)

摘　　要：分析比较了Type-1模糊贴近度与Type-2贴近度的特点,并将Type-2模糊贴近度的概念和相应运算应用到生态系统中,给出了物种动态的生态位模型,计算了物种实际生态位与理想生态位的重叠,根据重叠的精确值和区间值分别研究了物种进化的动态行为和进化程度.The characteristics between Type-1 fuzzy similarity measures and Type-2 fuzzy similarity measures are analysed and compared in this paper.Using the concept of Type-2 fuzzy similarity measures and its operations in the ecosystem,and a species dynamic niche model is proposed,and the overlapping between the practical niche and the ideal niche is computed.The dynamic behavior and evolution degree of species evolution are researched in term of precise values and interval values of overlapping.

关 键 词：Type-2模糊集合 贴近度 生态位 

分 类 号：Q14-3[生物学—生态学] O159[生物学—普通生物学]