Species Diversity of Wood-Decaying Fungi in Karst Regions of Southwest China  

作　　者：Fan GAO Tinghong TAN Zhihong LU Na QIU Chenglong LIU Min ZHOU Gongping KANG Hong YANG Chuandong YANG 

机构地区：[1]School of Agriculture and Forestry Engineering and Planning,Tongren University,Tongren 554300,China [2]Guizhou Provincial Key Laboratory for Biodiversity Conservation and Utilization in the Fanjing Mountain Region,Tongren University,Tongren 554300,China [3]Guangxi Vocational University of Agriculture,Nanning 530007,China [4]Hunan University of Humanities and Technology,Loudi 417000,China

出　　处：《Plant Diseases and Pests》2025年第1期6-12,共7页植物病虫害研究(英文)

基　　金：Supported by National Natural Science Foundation of China(31900271,32160086);Key Technology Research for Identification of Toxic Fungi in Guizhou Province(GKHZC[2020]1Y065);Guizhou Grassroots Science Popularization Action Plan Project([2025]04);Study on Carbon Storage and Carbon Sink Value of Forest Vegetation in State-owned Shatang Forest Farms in Guangxi(2021KY02).

摘　　要：[Objectives] To investigate the species diversity of wood-decaying fungi in karst regions of southwest China. [Methods] The karst core regions of southwest China, specifically Guizhou, Guangxi, and Yunnan, were investigated for the first time to analyze the species diversity characteristics of wood-decaying fungi in this area. This analysis was conducted through a comprehensive 5-year field investigation and systematic identification process. [Results] The wood-decaying fungi exhibited a distinctive species composition and distribution pattern within karst habitats, encompassing significant groups such as Polyporaceae and Hymenochaetaceae. Furthermore, these fungi demonstrated varying functional characteristics across the two ecological types of standing tree decay and wood decay. It was observed that wood-decaying fungi had a significant impact on the material cycle within karst ecosystems by degrading lignin and cellulose. Furthermore, the distribution of species diversity was closely associated with the characteristics of karst geomorphology and the types of vegetation. [Conclusions] This study not only addresses the lack of background data regarding wood-decaying fungi resources in karst regions, but also elucidates the maintenance mechanisms of fragile ecosystems from the perspective of decomposers. It provides a scientific foundation for biodiversity conservation, the prevention and control of forest diseases, and sustainable ecological management in karst regions.

关 键 词：Wood-decaying fungi Karst landform Species diversity Ecological function Decay type 

分 类 号：P64[天文地球—地质矿产勘探]