What is the Watershed?

System

Feedback Loop

Negative Feedback Loop

Positive Feedback Loop

Dynamic Equilibrium (steady state)

Equilibrium

homeostasis

emergent properties

Lithosphere

Atmosphere

Hyrosphere

Biosphere

Ecosystems

Ecosystems: Interactive Living and Non-Living Entities

Primary production

Gross Primary Production (GPP)

Net Primary Production (NPP)

Secondary Production

Where does most production of biomass on land occur?

Where does most production of biomass in water occur?

Net Primary Productivity

Nutrients

Macronutrients

Micronutrients

Nutrient (biogeochemical) Cycle

Pools (reservoirs)

Flux

Sources VS Sinks

Evaporation

Transpiration

Precipitation

Aquifers

water table

Human Impacts on the Hydrological Cycle

The Carbon Cycle

Humans affect on the carbon cycle

Methanogenasis

Biological Pump

Microbial Carbon Pump

Microbial Loop

The Nitrogen Cycle

Nitrification

Denitrifying Bacteria

How Humans Affect the Nitrogen Cycle

Consequences of Humans Affecting the Nitrogen Cycle

Eutrophication

Steps of Eutrophication

Phosphorus Cycle

How we Affect the Phosphorus Cycle