Spatial structure and diversity of woody plants and ectomycorrhizal fungus sporocarps in a natural subtropical forest |
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Authors: | Yu Liang Liang-Dong Guo Xiao-Jun Du Ke-Ping Ma |
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Institution: | (1) Laboratory of Quantitative Vegetation Ecology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China;(2) Systematic Mycology and Lichenology Laboratory, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100080, China;(3) Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China |
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Abstract: | Spatial patterns of ectomycorrhizal fungi, ectomycorrhizal plants, and non-ectomycorrhizal plants were investigated in a natural
subtropical forest using second-order analysis. The results of spatial pattern analysis showed that the degree of clumping
of woody plants and ectomycorrhizal sporocarps were correlated. There was a significantly positive correlation of relative
aggregation indices between ectomycorrhizal fungi and both non-ectomycorrhizal trees and ectomycorrhizal saplings. Correlations
between percentage of ectomycorrhizal trees and sporocarp occurrence of ectomycorrhizal fungi and between diversities of woody
plants and ectomycorrhizal fungi were distance-dependent or scale-related. A significantly high percentage of ectomycorrhizal
trees was found only at relatively short distance from ectomycorrhizal fungal sporocarps, and significantly positive correlation
of the diversity between woody plants and ectomycorrhizal fungi was found only at relative long distance, which implied that
ectomycorrhizal sporocarps prefer ectomycorrhizal-tree-dominant micro-sites at near distances and at relatively large scales,
diverse ectomycorrhizal sporocarps could be found in woodlands with high diversity of woody plants. Important factors affecting
the spatial distribution, occurrence, and diversity of ectomycorrhizal fungi include spatial pattern of ectomycorrhizal plants
and non-ectomycorrhizal plants, percentage of ectomycorrhizal plants, and plant diversity in a natural forest. |
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Keywords: | Community Ectomycorrhizal fungi Second-order analysis Spatial pattern Woody plants |
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