GIS based construction of ecological simulation system of degraded karst forests in the process of natural restoration
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摘要: 根据恢复生态学原理和相似学原理,将退化喀斯特森林演替系列各群落中所有的种划分为5个适应等级种组,并把自然恢复演替过程划分为6个演替阶段.通过考察不同适应等级种组在不同恢复阶段的变化过程,得出群落动态演替中种组替代规律,并通过退化群落恢复潜力度、恢复度和恢复速度3个评价指标对退化喀斯特森林自然恢复过程进行评价.在这些机理基础之上,基于GIS开发出一套退化喀斯特森林自然恢复生态仿真系统,应用于退化喀斯特森林自然恢复过程、恢复对策及其变化的研究,制定相应的经营措施,加速退化喀斯特森林恢复.Abstract: Based on the principles of restoration ecology and similarity,all species of successional stages in the natural restoration process of degraded karst forests were divided into five groups of adaptation grade.The successional sere was reconstructed according to the community similarity and six stages were defined.The pattern of species group replacement was obtained from observing the changes of adaptive grade species in every sucessional stages.Three evaluation indices such as restoration potential degree,restoration degree and restoration speed were proposed to evaluate the natural restoration process of degraded karst forests.According to the principles discussed above,one GIS based ecological simulation system of degraded karst forests in the natural restoration process was constructed,and applied to the study of the process of natural restoration.
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Keywords:
- ecological simulation /
- degraded karst forests /
- community /
- GIS
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