MICROORGANISMS IN TERRESTRIAL ECOSYSTEMS

by Una Nasrul

1. Soil as microbial habitat

1.1. Categories of soil

1.1.1. minerals soil

1.1.2. organic soil

2. Microorganisms in soil environment

2.1. Bacteria

2.2. Fungi

2.3. Protozoa

2.4. Viruses

3. Physicochemical condition which affect microorganisms population

3.1. surface

3.2. water

3.3. temperature

3.4. acidity and alkalinity

3.5. soil atmosphere

4. Production in SOM

4.1. Nitrogen in soil

4.2. Phosphorus

5. The subsurface biosphere

5.1. Deep hot biosphere

5.2. Deep subsurface