Comprehensive Overview of Biogeochemical Cycles: Carbon, Nitrogen, Calcium, Phosphorus, Sulphur, and Silicon

Dive into the intricate world of biogeochemical cycles with our detailed slide presentation. This comprehensive guide covers the essential cycles of Carbon, Nitrogen, Calcium, Phosphorus, Sulphur, and Silicon, highlighting their significance in maintaining ecological balance. Each slide offers clear, concise explanations and visually appealing diagrams to help you understand the processes and interactions that drive these critical cycles. Perfect for students, educators, and anyone interested in environmental science, this presentation provides valuable insights into the natural mechanisms that sustain life on Earth. Explore the interconnectedness of these elements and their vital roles in our ecosystem. Download and share to enhance your learning experience!

1. SILICON CYCLE Silicon dissolved in water Diatoms & some other organisms Fauna Siliceous shells after death Outlet & Inlet Si in Bottom soil Undigested siliceous shells inexcrets

2. NITROGEN CYCLE Run-off, Sewage, Fertilizer NO 3 NO 2 NH 3 N 2 In air Air Water Dissolved N 2 N 2 - Fixation Rainy Strom Chemical Reaction NH 3 Phytoplankton & Other Plants Aquatic Fauna Bacterial Decomposition Loss through fishing Predation etc Water Mud

3. CARBON CYCLE CO 2 in air CO 2 in water Animals Plants Bacteria Respiration Photosynthesis Respiration Consumption Decomposition Respiration After Death Death After Air Water

4. PHOSPHORUS CYCLE Organic Phosphate Inorganic Phosphate Phytoplankton & Other Plants Aquatic Fauna Bacterial Decomposition Chemical Reaction Through runoff Sewage, fertilization etc Loss through Fishing, reduction etc Air Water Water Mud

5. CALCIUM CYCLE Run-Off, Sewage, & Fertilizer Free CO 2 , Bi-carbonate, & Carbonate Aquatic Fauna Ca dissolved in water Phytoplankton & Other plants Marl Chemical Reaction Bacterial Decomposition Air Water Water Mud Loss through Farming, Predation etc

6. SULPHUR CYCLE Sulphur Sulphate Hydrogen Sulphide Animals Phytoplankton & Other plants Bacterial Oxidation Bacterial Oxidation Bacterial Reduction in anoxic condition Decomposition Decomposition Consumption Uptake