This is an introductory conceptual model that introduces key concepts in the management of lakes subject to nutrient inputs from human activity.

Lake Eutrophication Simple

This story contains a conceptual model of phosphorus cycling in a dune-lake system in the Northland region of New Zealand. It is based on the concept of a stock and flow diagram. Each orange ellipse represents an input, while each blue box represents a stock. Each arrow represents a flow. A flow involves a loss from the stock at which it starts and an addition to the stock at which it ends.

Environment Lake Nutrient Cycling Management Leaching

This diagram provides an accessible description of the key processes that guide the water quality within a lake.

Environment Lake Management Algae Eutrophication

This story presents a conceptual model of nitrogen cycling in a dune-lake system in the Northland region of New Zealand. It is based on the concept of a stock and flow diagram. Each orange ellipse represents an input, while each blue box represents a stock. Each arrow represents a flow. A flow involves a loss from the stock at which it starts and an addition to the stock at which it ends.

Environment Lake Nutrient Cycling Management Leaching

This model describes phosphorus cycling in a dune-lake system in the Northland region of New Zealand. It is based on stock and flow diagrams where each orange oval represents an input, while each blue box represents a stock. Each arrow represents a flow. Flows involve a loss from the stock at which they start and add to the stock at which they end.

Environment Lake Nutrient Cycling Management Leaching

This is an introductory model that presents key concepts in the management of lakes subject to nutrient inputs from human activity.

Lake Eutrophication Simple

This model describes nitrogen cycling in a dune-lake system in the Northland region of New Zealand. It is based on stock and flow diagrams where each orange oval represents an input, while each blue box represents a stock. Each arrow represents a flow. Flows reduce the stock at which they start and add to the stock at which they end.

Environment Lake Nutrient Cycling Management Leaching

This diagram describes the key processes that influence the water quality within a Northland lake.

Environment Lake Management Algae Eutrophication

This stock and flow diagram is a working draft of a conceptual model of a dune-lake system in the Northland region of New Zealand.

Environment Lake Nutrient Cycling Management Leaching

This stock and flow diagram provides a broad description of the key nutrient pathways (N and P) that exist in a dune-lake system subject to external loadings emanating from intensive agriculture.

Environment Eutrophication Lake Nutrients

This stock and flow diagram is an updated working draft of a conceptual model of a dune-lake system in the Northland region of New Zealand.

Environment Lake Nutrient Cycling Management Leaching

This stock and flow diagram is an updated working draft of a conceptual model of a dune-lake system in the Northland region of New Zealand.

Environment Lake Nutrient Cycling Management Leaching

This stock and flow diagram is a working draft of a conceptual model of a dune-lake system in the Northland region of New Zealand.

Environment Lake Nutrient Cycling Management Leaching

This stock and flow diagram is a working draft of a conceptual model of a dune-lake system in the Northland region of New Zealand.

Environment Lake Nutrient Cycling Management Leaching

Simulation of the water balance for the Bracciano Lake. Data from 1994 to 2003 January.Added run off and soil capacity

Lake

This diagram provides an accessible description of the key processes that influence the water quality within a lake.

Environment Lake Management Algae Eutrophication

This diagram provides an accessible description of the key processes that influence the water quality within a lake.

Environment Lake Management Algae Eutrophication

This stock and flow diagram is an updated working draft of a conceptual model of a dune-lake system in the Northland region of New Zealand.

Environment Lake Nutrient Cycling Management Leaching

This stock and flow diagram is an updated working draft of a conceptual model of a dune-lake system in the Northland region of New Zealand.

Environment Lake Nutrient Cycling Management Leaching

Simulation of the water balance for the Bracciano Lake

Lake

This is an introductory conceptual model that introduces key concepts in the management of lakes subject to nutrient inputs from human activity.

Lake Eutrophication Simple

This model describes phosphorus cycling in a dune-lake system in the Northland region of New Zealand. It is based on stock and flow diagrams where each orange oval represents an input, while each blue box represents a stock. Each arrow represents a flow. Flows involve a loss from the stock at which they start and add to the stock at which they end.

Environment Lake Nutrient Cycling Management Leaching

This model describes nitrogen cycling in a dune-lake system in the Northland region of New Zealand. It is based on stock and flow diagrams where each orange oval represents an input, while each blue box represents a stock. Each arrow represents a flow. Flows reduce the stock at which they start and add to the stock at which they end.

Environment Lake Nutrient Cycling Management Leaching

Lake