-
摘要: 为了探讨不同林地对空气微生物的影响，以浙江林学院东湖校区为样地，采用自然沉降法，于春季对樟树Cinnamomum camphora，桂花Osmanthus fragrans，杨梅Myrica rubra和黄皮刚竹Phyllostachys viridis林的空气微生物结构特征差异进行了调查，并对其抑菌效益进行评价。结果表明：樟树林、桂花林、杨梅林和竹林对空气微生物的影响具有极显著差异（P＜0.01），4种林分对空气细菌具有极显著的抑制作用（P＜0.01），与对照相比分别降低了38.9%，62.2%，70.0%和91.1%；桂花林和竹林对空气真菌和放线菌也具有显著的抑制作用（P＜0.05），而杨梅林和樟树林对空气放线菌具有显著的促进作用（P＜0.01）。在1 d中，杨梅林、樟树林、桂花林对空气细菌抑制作用中午最强，抑菌率分别为85.4%，29.2%，70.9%；而林分空气放线菌和真菌浓度中午反而高于对照，起到促进作用。4种林分对降低空气细菌浓度改善空气质量具有显著的作用，但不同林分对空气真菌和放线菌的作用效果则不同。图2表1参19Abstract: To explore the effects on airborne microbes in four stand types，we measured airborne microbe concentrations in Cinnamomum camphora，Osmanthus fragrans，Myrica rubra，and Phyllostachys viridis stands in the spring of 2008 using the natural sedimentation method in the East Lake Campus of Zhejiang Forestry College，with the control of open field. Then，air quality was estimated using natural sedimentation. Results showed that compared with the control，all four stand types significantly inhibited airborne bacteria（P＜0.01） with reductions of 38.9% for C. camphora，62.2% for O. fragrans，70.0% for M. rubra，and 91.1% for P. viridis. In O. fragrans and P. viridis stands，fungi and actinomycete concentrations significantly decreased （P＜0.05），but in C. camphora and M. rubra stands，fungi concentration significantly increased （P＜0.01）. At noon，the strongest inhibition on airborne bacteria concentration was found in M. rubra（85.4%），C. camphora （29.2%），and O. fragrans （70.9%） stands. These four stand types significantly reduced airborne microbe concentrations，but results on fungi and actinomycete quantities differed depending on the forest type.［Ch，2 fig. 1 tab. 19 ref.］
-
Key words:
- forest biology /
- stands /
- airborne microbes /
- inhibitory rates /
- diurnal variations
-
-
链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2010.01.015
点击查看大图
计量
- 文章访问数: 4273
- HTML全文浏览量: 321
- PDF下载量: 137
- 被引次数: 0
下载:
