Relationship between Environmental Factor and Species Diversity of Wild Edible Mushrooms at Sakaerat Environmental Research Station, Nakhon Ratchasima Province

Main Article Content

Tharnrat Keawgrajang

Abstract

Surveying of edible mushrooms in dry dipterocarp fores t (DDF) and dry evergreen forest
(DEF) at Sakaerat Environmental Research Station, Nakhon Ratchasima province, was conducted
during from June to October 2017. In total, 32 mushroom species were found, which were classified
into 1 phylum, 1 subphylum, 3 class, 8 orders, 11 families, 16 genera. The Shannon-Wiener
index of edible mushrooms in DDF (29 species, H′= 2.328) had higher than in DEF (16 species,
H′= 1.810). The majority of edible mushrooms was ectomycorrhizal mushrooms, which were
found 21 species (65.63%). Among of them, the mos t abundance was Russulaceae, including 9
Russula and 2 Lactarius. The relationship between environmental variables and fruiting of edible
mushrooms was analysed by using Canonical Correspondence Analysis (CCA). The results revealed
that edible mushrooms could be categorized into three groups. First group, the mushrooms had
high positive correlation with soil mois ture such as Russula emetica, Amanita princeps, Craterellus
aureus, Craterellus odoratus etc.. Second group, the mushrooms had positive correlation with
air temperature and light intensity such as R. delica, R. densifolia, A. vaginata etc.. Third group
was the generalist mushrooms, including R. alborealata, A. hemibapha, Auricularia thailandica.
It was also found that the biomass of grasses had influenced the diversity of edible mushrooms
in DDF. The amount of edible mushrooms might decrease when the forest floors were covered
with grasses.

Article Details

How to Cite
Keawgrajang, T. (2019). Relationship between Environmental Factor and Species Diversity of Wild Edible Mushrooms at Sakaerat Environmental Research Station, Nakhon Ratchasima Province. Thai Journal of Forestry, 38(1), 53–65. Retrieved from https://li01.tci-thaijo.org/index.php/tjf/article/view/245559
Section
Original Articles

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