Biogeochemistry

9.

Other Essential Element Cycles

9.1.

9.1.1.

Silicon Sources

9.1.1.1.

Silicate Mineral Weathering

9.1.1.2.

9.1.2.

Biological Silicon Utilization

9.1.2.1.

9.1.2.2.

9.1.2.3.

9.1.2.4.

9.1.3.

Silicon Transport

9.1.3.1.

Dissolved Silica

9.1.3.2.

Particulate Silica

9.1.4.

Silicon Sedimentation

9.1.4.1.

Biogenic Silica

9.1.4.2.

Diagenetic Processes

9.2.

9.2.1.

Iron Reservoirs

9.2.1.1.

9.2.1.2.

9.2.1.3.

Atmospheric Iron

9.2.2.

Iron Redox Chemistry

9.2.2.1.

9.2.2.2.

9.2.2.3.

9.2.3.

Biological Iron Cycling

9.2.3.1.

Iron Limitation

9.2.3.2.

Iron Uptake Mechanisms

9.2.3.3.

9.2.4.

9.2.4.1.

Dust Deposition

9.2.4.2.

9.2.4.3.

Hydrothermal Input

9.3.

Trace Element Cycles

9.3.1.

Micronutrient Elements

9.3.1.1.

9.3.1.2.

9.3.1.3.

9.3.1.4.

9.3.1.5.

9.3.2.

9.3.2.1.

9.3.2.2.

9.3.2.3.

9.3.2.4.

9.3.3.

Biogeochemical Behavior

9.3.3.1.

9.3.3.2.

Bioavailability

9.3.3.3.

Bioaccumulation

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10. Terrestrial Ecosystem Biogeochemistry