摘要
运用Ｌｏｇｉｓｔｉｃ曲线描述系统的一般发展过程，根据其发展速度把发展过程分为起步、成长、成熟和顶极四个时期。定义成长期和成熟期为可持续发展期、而顶极期为非持续发展期。分析了影响可持续发展期长短的资源承载参数ｒ和环境容量参数ｋ，认为ｒ是从现有资源出发反映可持续发展期长短的参数、ｋ是反映资源环境容量不断开拓与革取能力的参数，从而剖析了可持续发展的实质是遵从复合Ｌｏｇｉｓｔｉｃ曲线。提出了可持续发展的林业应调整承载参数ｒ，延长成长期和成熟期、又要重视参数人，节约森林资源．挖掘替代产品．不断开拓森林资源与环境容量。
A general rule of a system's development is described in Logistic curve. Thedeveloping process is divided into 4 stages including initial. growing. mature andclimactic stages according to the developing speed. The growing stage and themature stage are defined as the period of sustainable development. and theclimactic stage as the period of non-sustainable development. The length of theperiod of sustainable development is influenced by resources bearing andenvironment capacity coefficients r and k. The analytic results show that rproceeds from the situation of the existing resources to reflect the length of theperiod of sustainable development, and k is the coefficient that reflects thecapacities to open up and extract resources and environment. Thus it is foundthat sustainable development follows complex Logistic curve. Thereby, it is raisedas the forestry strategies for sustainable development that we should adjust thebearing coefficient r, prolong the growing stage and the mature stage. andconsider coefficient k,save forest resources. tap the lalent power of replacements. and extend the capacity of forest resources and environment constantly.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1995年第4期14-20,共7页
Journal of Northeast Forestry University
基金
国家自然科学基金
福建省科委联合资助
