Distribution of Microflora and Mesofauna in the Forest Soils of Gwangneung Experimental Forest
2011
Eo, J.U., Department of Herbal Crop Research, Rural Development Administration, Chungbuk, Republic of Korea | Park, B.B., Korea Forest Research Institute, Seoul, Republic of Korea | Park, K.C., Department of Herbal Crop Research, Rural Development Administration, Chungbuk, Republic of Korea | Chun, J.W., Korea Forest Research Institute, Seoul, Republic of Korea
The aim of this study was to investigate the distribution of soil biota across forest types and soil depths in Gwangneung Experimental Forest. We selected 5 sites, which are 3 deciduous- and 2 coniferous forests. The abundance of microflora in these areas was analyzed by the phospholipid fatty acid (PLFA) indicators, and the density of mesofauna was measured by the abundance of nematodes and microarthropods. The abundance of soil microflora was higher in the A layer than in the B layer based on the PLFA indicators, but there were no differences between deciduous and coniferous forests. Average density of nematodes was higher in the A horizon than in the B horizon. The density of fungivorous nematodes was higher in the deciduous forests. Mean densities of Collembola and Oribatida were 44% and 42% of microarthropods in soil samples, respectively. The results of microbial PLFA indicators were significantly correlated with the density of their consumers, which reflected that the food web in fungi- and bacteria-based soil developed in this forests. This study suggested that the distribution of soil organisms largely separated by soil depths and was slightly affected by the forest type in the Gwangneung Experimental Forest.
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