退化生态系统恢复指示性指标的研究——以缙云山为例  

Research of Prescriptive Indicators for the Restoration of Degraded Ecosystems——A Case in the Jinyun Mountains

作　　者：李艳霞[1] 陈晓德[1] 张华 张淑琴[1] 

机构地区：[1]西南大学生命科学学院,三峡库区生态环境教育部重点实验室,重庆400715 [2]商丘市环境监测站,河南商丘476000

出　　处：《西南大学学报（自然科学版）》2007年第6期109-113,共5页Journal of Southwest University(Natural Science Edition)

基　　金：国家自然科学基金重点资助项目(3933040子课题).

摘　　要：通过对缙云山退化生态系统5个不同恢复演替阶段(灌草丛、马尾松林前期、马尾松林后期、针阔混交林和常绿阔叶林)演替变化的野外调查及其研究,发现:在外部气候条件一致的情况下,群落演替是群落内物种多样性、群落光吸收、群落气温、乔木层累积盖度和群落极温变化的主导因素,而群落内这些指标的变化明显表现群落的演替进程.通过比较研究缙云山退化生态系统指示性指标,发现群落累积盖度和群落极温振幅可以很好的指示群落的恢复演替进程,其他指标可以作为参考指标.Through studying and analyzing the results in a field investigation of 5 restorative succession phases of the degraded ecosystem in the Jinyun Mountains： Shrubby grass land, Masson Pine early stage, Masson Pine late stage, Coniferous broad-leaved mixed forest and Evergreen broad-leaved forest stage, we found that community succession was the leadi tion, community temperature, cumulate cover tions of similaiexternal climate ng of factor for the change arbor and community environment. More over, the changes of species diversity, light absorppole temperature under the condiof these indicators well reflect the course of community succession. The cumulate coverage and the pole temperature fluctuation of the community were found to be able to show the process of the restorative succession of the community while the other indicators could be used as reference indexes. These indicators help to understand the characteristics and significance of the process of community succession in further exploration of the patterns of changes during the progress of natural restoration after subtropical evergreen broad-leaved forests are destroyed and disturbed.

关 键 词：缙云山 退化生态系统 指示性指标 演替 恢复 累积盖度 

分 类 号：Q948[生物学—植物学]