Ecosystem Changes and Their Mechanisms Caused by Disturbances of Highway Construction
Ecosystem Changes and Their Mechanisms Caused by Disturbances of Highway Construction
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发表时间：
2006
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通讯作者：
Zhu Jian-jun
中科院分区：
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作者：
Zhu Jian-jun
在总结公路建设引起的直接干扰和间接干扰的基础上，讨论了公路建设引起的非生物成分(土壤、地貌和天气)、生物成分(个体、种群和群落水平)和整个生态系统特征(结构和功能)的变化，分析了生态系统演替和植被类型的变化趋势，从生态系统结构和功能两个方面建立了公路建设生态系统变化的指标体系，探讨了生态系统变化的机理，指出公路建设干扰使非生物成分和生物成分发生变化；公路建设的干扰以及非生物和生物成分的变化使生态系统的结构和功能发生变化，最终引起生态系统演替和植被类型的变化。
Based on summation of direct and indirect disturbances caused by highway construction,the changes of non-biological components(such as soils,landforms and weather),biological components(on levels of individual,population and community) and the whole ecosystem characteristics(structure and functions) caused by highway construction were discussed.The changing trends of ecosystem succession and vegetation types were analyzed.The index system of the ecosystem changes caused by highway construction was set up from the aspects of ecosystem structure and functions.The mechanisms of ecosystem changes were discussed.It was pointed out that disturbances of highway construction made non-biological and biological components change;disturbances of highway construction and the changes of nonbiological and biological components made structure and functions of ecosystem change;and eventually the changes of ecosystem succession and vegetation types ocurred.