Carbon cycle 1 Ecology 1 Ecosystem process 1 Energy transformations 1 III. PATTERNS.- Temporal Dynamics.- Landscape Heterogeneity and Ecosystem Dynamics 1 IV. INTEGRATION.- Changes in the Earth System.- Managing and Sustaining Ecosystem 1 Microbial diversity 1 Nitrogen fixation 1 Process control in soil 1 Soil ecosystem 1 Soil enzymes 1 Terrestrial Ecosystem, The Ecosystem Concept, Earth's Climate System, MECHANISMS.- Water and Energy Balance.- Carbon Inputs to Ecosystems.- Plant Carbon Budgets.- TerrDecomposition and Ecosystem Carbon Budgets, Plant Nutrient Use, Nutrient Cycling, 1 Trophic Dynamics.- Species Effects on Ecosystem Processes, 1