Ecology and Diversity of Bracket Fungi in Oak Dominated Forests of Nepal,Central Himalaya  

尼泊尔中央喜马拉雅地区橡树主导森林中的菌耳真菌的生态学特征与多样性

作　　者：ADHIKARI Hari Sharan ADHIKARI Hari Sharan(特里布万大学科学技术研究所(阿姆里特校区),尼泊尔加德满都44600)

机构地区：[1]Institute of Science and Technology,Tribhuvan University(Amrit Campus),Kathmandu 44600,Nepal

出　　处：《Journal of Resources and Ecology》2025年第1期124-131,共8页资源与生态学报(英文版)

摘　　要：Bracket fungi(Polypores)are a morphologically distinct category of Agaricomycetes(Basidiomycota)that are important agents for decomposition and nutrient cycling in forest ecosystems.The species composition and ecology of these fungi in particular forest ecosystems are overlooked in Nepal.Thus,the current study is aimed at assessing the diversity and distribution of bracket fungi in oak-dominated forests in the middle mountains of central Nepal.Regular field visits over a six-year period(2017-2022)were done at nine study sites of oak-dominated forests in Karnabhumi Community Forest(KCF)and Gumalchoki Community Forest(GCF)from Makawanpur and Kathmandu districts respectively.A total of 26 species of bracket fungi belonging to 17 genera and 8 families were reported.The majority of the bracket fungi are known to be saprobic,while Coltricia cinnamomea is the only mushroom found to be mycorrhizal based on its ecology.Most of the bracket fungi were found to be inedible,while Ganoderma lucidum,Laetiporus sulphureus,and Pycnoporus cinnabarinus were found to be medicinal.The diversity indices,such as the Shannon Weiner index and the Simpson diversity index,were found to be 0.26 and 0.53 in GCF,respectively,and 0.17 and 0.35 in GCF.This suggest that Oak dominated forests harbor considerable diversity of bracket fungi such that conservation of these forests is necessary.菌耳真菌(多孔菌)是Agaricomycetes(担子菌门)中形态上独特的一类,它们在森林生态系统中是分解和营养循环的重要媒介。这些真菌在特定森林生态系统中的物种组成和生态学特征在尼泊尔被忽视。本研究旨在评估尼泊尔中部山区橡树主导森林中菌耳真菌的多样性和分布特征。在2017-2022年期间,对位于Makawanpur和Kathmandu地区的Karnabhumi社区森林(KCF)和Gumalchoki社区森林(GCF)的9个以橡树为主导的森林研究点进行了定期的野外调研。共报告了属于17个属和8个科的26种菌耳真菌。大多数菌耳真菌是腐生性的,而根据其生态学特征,Coltricia cinnamomea是唯一被发现为菌根性的蘑菇,灵芝、硫磺多孔菌和朱红密孔菌具有药用价值。其Shannon-Weiner指数和Simpson多样性指数,在GCF中分别为0.26和0.53,在KCF中分别为0.17和0.35。这表明橡树主导的森林拥有相当大的菌耳真菌多样性,因此保护这些森林是必要的。

关 键 词：ectomycorrhizal fungi hardwood fungi POLYPORES Quercus forest shelf fungi wild mushroom 

分 类 号：S718.81[农业科学—林学]