Macrofungal diversity and its driving factors in Ji'an National Nature Reserve,Jilin Province,northeast China
Macrofungi play essential roles in ecosystems,but the seasonal dynamics of macrofunal communities in forests remain unclear.Macrofungal community componets of five forest types in different seasons in Ji'an National Nature Reserve(Jilin,China)were analyzed on the basis of collections made from 2019 to 2021.Environmental variables of selected plots in the five typical vegetation types were evaluated.In total,1 325 specimens were identifed by using morphological and molecular biology methods,and 293 species belonging to 125 genera,68 families,18 orders,6 classes,and 2 phyla were obtained.Russulaceae(37 species,12.63%of the total),Amanitaceae(26 species,8.87%),Tricholomataceae(20 species,6.83%),and Boletaceae(19 species,6.48%)were the most diverse family.Lactarius(19 species,6.48%of the total),Amanita(16 species,5.46%),Russula(16 species,5.46%),and Cortinarius(14 species,4.78%)were dominant.Diversity indices of macrofungi showed increasing trends from Pinus koraiensis forests to Quercus mongolica forests.The cumulative species richness was ranked as:Q.mongolica forest>broadleaf mixed forest>Q.mongolica and P.koraiensis mix forest(Q.mongolica as the dominant species)>P.koraiensis and Q.mongolica mix forest(P.koraiensis as the dominant species)>P.koraiensis forest.Agarics(204 species,69.62%of the total)were the dominant group of macrofungi,and they were mainly found in Q.mongolica forest in August and influenced by soil temperature,air temperature,soil moisture,and the cover degree of Q.mongolica,especially significantly influenced by soil temperature(P<0.05).It is found that most macrofungi have a preference for forest types with a relatively high cover degree of Q.mongolica.Therefore,the deliberate protection of Q.mongolica forests is beneficial to maintaining macrofungal diversity.
forest typemacrofungal species richnesscommunity compositionedaphic variablesconservation
NETL
NSTL
万方数据
