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Changes in soil microbial biomass and community composition along vegetation zonation in a coastal sand dune.(Report)
- Article from:
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Australian Journal of Soil Research
- Article date:
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June 1, 2008
- Author:
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;
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Copyright informationCOPYRIGHT 2008 CSIRO Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract. We used phospholipid fatty acid (PLFA) analysis to examine the relation of microbial biomass and community composition to vegetation zonation on a coastal sand dune. Soil samples were collected along 3 line transects established from the shoreline to the inland bush. Total PLFA content and PLFA composition of soils were used as indices of total microbial biomass and community composition, respectively. The microbial biomass was much higher in the inland Vitex rotundifolia zone than in the seaside plots. The microbial community composition also differed among the vegetation zones, with a higher contribution of fungal biomarkers in the inland plots. The microbial ...
<0.05). In contrast, there were no significant differences in the 0.10-0.15 and 0.20-0.25 m layers (Tukey-Kramer test, P><0.05; Table 3, Fig. 4). In addition, these 4 soil properties were correlated with each other. In contrast, no significant correlation was detected between TotPLFA and water content or soil salinity (P><0.05; r=0.75, Fig. 7). In contrast, there was no correlation in the V. rotundifolia zone (P>
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