Biodiversity Science ›› 2019, Vol. 27 ›› Issue (8): 880-886.doi: 10.17520/biods.2019054

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Relationship between diversity of wood-decaying fungi and their host wood in the Fenglin National Nature Reserve

Junning Li1, 2, Tong Li1, 2, Yulian Wei1, *()   

  1. 1. Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016
    2. University of Chinese Academy of Sciences, Beijing 100049
  • Received:2019-02-26 Accepted:2019-05-19 Online:2019-09-25
  • Wei Yulian E-mail:weiyulianer@sina.com

Wood-decaying fungi decompose cellulose, semicellulose and lignin in wood by exuding various hydrolytic enzymes, so they play an important role in substance cycling in forest ecosystems. A field investigation to study these fungi was carried out in a permanent plot in the Fenglin National Nature Reserve. The wood-decaying fungal species, abundance and host wood characters were recorded. We analyzed the relationship between fungal diversity and the characters of the host wood, including species, abundance, degree of woody decay and wood diameter. A total of 295 specimens identified as 93 wood-decaying fungal species were recorded. The Shannon index was 3.86, and the Simpson index was 0.96. The species richness and abundance of wood-decaying fungi was significantly correlated with wood diameters of 2-5 cm and 5-10 cm, with a classification of 2 in degree of decay and with pine wood. The dominant hosts were Acer, Corylus, Picea and Pinus, and they each hosted different fungal communities. The dominant fungi in maple and hazelnut wood were Daedaleopsis tricolor, Trametes versicolor and Trichaptum pargamenum. Irpex lacteus, Trametes versicolor, Trichaptum abietinum and T. fuscoviolaceum were the dominant fungal species in pine and spruce wood. The analysis of the growing probability of fungal basidiocarps showed that the ratio of wood with basidiocarps to all dead wood of the same species plateaued in areas up to 0.36 ha. For example, the ratio of pine wood with basidiocarps to all pine wood was 10.2%, the ratio was 12.9% for maple wood, the ratio was 13.4% for spruce wood, and the ratio was 53.7% for hazelnut wood. These findings can help predict the occurrence of certain wood-decaying fungi in forest ecosystems.

Key words: broad leaved-Korean pine mixed forest, wood-decaying fungi, biodiversity, dead wood characters

Fig. 1

Diagram of sampling subplots in a permanent plot of Fenglin National Nature Reserve"

Table 1

Correlation of wood-decaying fungal abundance and species with host wood characters"

倒木直径
Diameter of dead wood (cm)
倒木腐烂程度
Decaying degree of dead wood
寄主
Host
0-2 2-5 5-10 > 10 1级
Class 1
2级
Class 2
3级
Class 3
4级
Class 4
松属
Pinus
槭属
Acer
云杉属
Picea
榛属
Corylus
多度 Abundance 0.459* 0.559** 0.572** 0.303 0.220 0.649** 0.364 0.145 0.564** 0.284 0.332 0.077
种类 Species 0.526** 0.564** 0.527** 0.363 0.013 0.606** 0.490* 0.251 0.566* 0.273 0.381 0.053

Table 2

Correlation of wood-decaying fungal abundance and species with pine wood characters"

倒木直径 Diameter of dead wood (cm) 倒木腐烂程度 Decaying degree of dead wood
0-2 2-5 5-10 > 10 1级 Class 1 2级 Class 2 3级 Class 3 4级 Class 4
多度 Abundance 0.438* 0.401* 0.548** 0.226 0.061 0.627** 0.142 0.208
种类 Species 0.551** 0.366 0.510** 0.246 0.047 0.561** 0.223 0.292

Table 3

Diversity of wood-decaying fungi on the dominant hosts in a permanent plot in Fenglin National Nature Reserve"

槭属 Acer 榛属 Corylus 云杉属 Picea 松属 Pinus
真菌多度 Fungal abundance 65 54 61 82
真菌种类数 Fungal species 36 34 39 40
Shannon多样性指数 Shannon diversity index 3.29 3.39 3.46 3.22

Fig. 2

Wood-decaying fungi on different dominant hosts in a permanent plot in Fenglin National Nature Reserve"

Table 4

Dominant species of wood-decaying fungi on different dominant hosts in a permanent plot in Fenglin National Nature Reserve"

槭属 Acer 榛属 Corylus 松属 Pinus 云杉属 Picea
优势种
Dominant species
三色拟迷孔菌
Daedaleopsis tricolor
红缘拟层孔菌
Fomtiopsis pinicola
缠结锈革菌
Hymenochaete intricata
云芝
Trametes versicolor
桦附毛孔菌
Trichaptum pargamenum
褐紫附毛孔菌
Trichaptum fuscoviolaceum
三色拟迷孔菌
Daedaleopsis tricolor
云芝
Trametes versicolor
桦附毛孔菌
Trichaptum pargamenum
白囊耙齿菌
Irpex lacteus
缠结锈革菌
Hymenochaete intricata
云芝
Trametes versicolor
冷杉附毛孔菌
Trichaptum abietinum
褐紫附毛孔菌
Trichaptum fuscoviolaceum
白囊耙齿菌
Irpex lacteus
赭色齿耳菌
Steccherinum ochraceum
绒毛韧革菌
Stereum subtomentosum
云芝
Trametes versicolor
冷杉附毛孔菌
Trichaptum abietinum
褐紫附毛孔菌
Trichaptum fuscoviolaceum

Fig. 3

Change of dead wood growing basidiocarps to all dead wood of different dominant hosts with the investigating area arising in a permanent plot"

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