摘要
火后生态恢复是21世纪恢复生态学的重要研究内容,土壤微生物作为森林生态系统的关键组成部分,开展火干扰下土壤微生物的研究是非常有必要的。本文通过综合分析现有文献对火后森林土壤微生物的研究结果,发现不同火强度和维持时间下土壤微生物活性、群落组成变化及影响火干扰强度的主要因素是已有研究的主要内容,在火后土壤微生物群落的恢复时间、多样性变化、演替规律等问题上尚存在争论,对火干扰下的土壤微生物研究的重要性也尚未得到足够重视。未来研究应在综合应用现有微生物研究技术并继续改进创新的基础上,采用野外调查和田间模拟控制实验相结合的手段,分别从种群、群落和生态系统等多个层次上开展火干扰下的森林土壤微生物研究,解析地下与地上生态系统的相互关系,探究土壤微生物在火干扰下的变化规律和演替机制,丰富火生态学理论;确定火后土壤微生物恢复中的功能类群,分析功能类群在火后恢复过程中的作用,比较分析不同恢复方式下土壤微生物的变化规律,以指导火后生态系统的恢复实践。
Ecological restoration after fire disturbance is an important research theme of restoration ecology in the 21st century.As an integral component of forest ecosystems,it is necessary to study soil microbes after fire disturbance.Based on the comprehensive analysis of existing literature on forest soil microbes after fire,the results show that soil microbial activity,community composition changes and main factors affecting fire interference intensity under different fire intensities and maintenance times are the main study topics of existing research.However,there are still controversies on the recovery time,diversity changes,and succession laws of soil microbial communities after fire,and the importance of soil microbial research under fire disturbance has not been paid enough attention.According to comprehensive application of existing microbial research technologies and continuous improvement and innovation,future research should adopt the combination of field surveys and field simulation control experiments to carry out forest soil microbial research under fire disturbance at multiple levels such as populations,communities,and ecosystems.In order to enrich the theory of fire ecology and guide the recovery practice of the ecosystem after fire,research should focus on the study of the relationship between underground and aboveground ecosystems,analyze the changing laws and succession mechanisms of soil microorganisms,determine the functional groups in soil microbial restoration after fire and the role of functional groups in the process of post-fire restoration,compare the changing laws of soil microbes under different fire disturbance and restoration methods.
作者
佘容
杨晓燕
肖文
SHE Rong;YANG Xiaoyan;XIAO Wen(Institute of Eastern-Himalaya Biodiversity Research,Dali University,Dali 671003,China;Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China,Dali 671003,China)
出处
《四川林业科技》
2021年第3期94-101,共8页
Journal of Sichuan Forestry Science and Technology
基金
第二次青藏高原综合科学考察研究(2019QZKK0402)。
关键词
火
微生物生态学
生态学功能
地下生态系统
恢复生态学
Fire
Microbial ecology
Ecological function
Underground ecosystem
Restoration ecology
