The Study on Soil Microbial Biodiversity in Kuandaushi Forest Ecosystem
| Autor: | I-Hung Shih, 拾已宏 |
|---|---|
| Rok vydání: | 2000 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 88 Biodiversity is important to global life, therefore, the study and investigation of such issue has become one of the most important world-wide concerned topics for research. However, microbial diversity in the soil still faces a lot of difficulties. The ecosystem of Kuandaushi forest is located in Mid-Taiwan, a representative ecosystem where there are abundant and diversified plant communities. This paper intended to study the diversity of soil microbial community from the approach of soil microbial function. Biolog Bacteria Identify System provides a power device that can simultaneously test 95 carbon sources on their metaphoric patterns. With that device, this study investigated the functional soil microbial diversity. On the vertical configuration, the microbial diversity decreased with the increasing of soil depth. According to the cluster analysis of the carbon source utilization, the whole profile can be divided into four main clusters-0~2cm, 2~15cm, 15~40cm and 40~95cm, which corresponded with the layers of A1, A2, Bw and BC on the soil profile. On the horizontal configuration, the metaphoric potential of soil microbe community is highest in primary forest and lowest in China fir plantation. Within the same forest, there were significantly differences, which show even in small area the microbial community can be different. This is probably caused by the different plant species in the micro site. The relationship between soil microbial community and soil properties is different from that between soil microbes community and metaphoric patterns, which is significantly related to soil pH values, but not significantly related to soil organics and nitrogen content. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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