从自然干扰看人类干扰的合理性

人类活动对自然生态系统来说又称人类干扰．总结了人类干扰的特点：①干扰方式的相似性与作用时间的同步性；②干扰历时的长期性与作用程度的深刻性；③干扰范围的广泛性与作用方式的多样性；④干扰活动的小尺度与作用后果的大尺度．在此基础上，应用景观生态学的理论分析了自然干扰与人类干扰在作用机制和尺度等方面的差异，指出自然干扰的运行机制对于人类活动具有重要的指导和借鉴意义．

The Rationality of Human Disturbance Compared with Natural Disturbance

Human activity was regarded as disturbance for natural ecological system.The characteristics of human disturbance were summarized:(1)Similarity in disturbance types and synchronization in work time;(2)Permanency in disturbance duration and depth in work degree;(3)Extension in disturbance range and variety in work ways;(4)Small scale in disturbance actions and large scale in work results.The difference between natural disturbance and human disturbance on mechanism and scale were analyzed by using the theory of landscape ecology.The work mechanism of natural disturbance was of significance to direct human activity.