Survey of arbuscular mycorrhizal fungi in deforested and natural forest land in the subtropical region of Dujiangyan, southwest China

被引：1
作者：
Y. Zhang
L.-D. Guo
R.-J. Liu
机构：
来源：
Plant and Soil | 2004年 / 261卷
关键词：
disturbance; diversity; mycorrhiza; subtropical forest;
D O I：
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学科分类号：
摘要：
The diversity of arbuscular mycorrhizal (AM) fungi in deforested (Mantoushan) and natural forest (Banruosi) land in the subtropical region of Dujiangyan was surveyed and compared. A total of 44 taxa of AM fungi were isolated, and the same number of AM fungus taxa (34 taxa) was found in both deforested and natural forest land. Acaulospora and Glomus were the dominant genera in the two sites. Glomus convolutum and G. versiforme were the dominant species in the natural forest land, while only G. versiforme was dominant in the deforested land. There was no significant difference in total spore density of AM fungi between the two sites, but the total species richness of AM fungi was significantly higher in the deforested land than in the natural forest land. The Shannon-Weiner index of AM fungus diversity was a higher in the natural forest land (2.67) than in the deforested land (2.15). There was high AM fungus composition similarity (Sorenson's coefficient CS=0.71) between the two sites. We suggest that there was little effect of deforestation on the diversity of AM fungi, and that annual herbaceous plants play a major role in maintaining and increasing AM fungus spore density and species richness in deforested land.
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页码：257 / 263
页数：6
相关论文
共 53 条
[1]  
Allen E. B.(1980)Natural re-establishment of vesicular-arbuscular mycorrhizae following stripmine reclamation in Wyoming J. Appl. Ecol. 17 139-147
[2]  
Allen M. F.(2000)Vegetation dynamics and arbuscular mycorrhiza in old-field successions of the western Italian Alps Mycorrhiza 10 63-72
[3]  
Barni E(1987)Effect of fire on the mycorrhizal ecology of little bluestem ( Can. J. Bot. 66 706-713
[4]  
Siniscalco C(1993)) Funct. Ecol. 7 616-622
[5]  
Dhillion S. S.(1990)Vesicular-arbuscular mycorrhizal fungi: A determinant of plant community structure in early succession Am. J. Bot. 77 1193-1200
[6]  
Anderson R. C.(1963)Mycorrhziae in recent vocalic substrates in Hawaii Trans. Br. Mycol. Soc. 46 235-244
[7]  
Liberta A. E.(1980)Spores of mycorrhizal Can. J. For. Res. 10 300-303
[8]  
Gange A. C.(1980)species extracted from soil by wet sieving and decanting Can. J. For. Res. 10 393-398
[9]  
Brown V. K.(1986)Clearcut harvesting and ectomycorrhizae: survival of activity on residual roots and influence on a bordering forest stand in western Montana Mycologia 78 32-36
[10]  
Sinclair G. S.(1992)Early effects of partial cutting on the number and distribution of active ectomycorrhizae in steep, rockly soils of Douglas-fir/larch forests in western Montana Ecology 73 2034-2042
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