biology

Landscape evolution model

Landscape evolution model is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Landscape evolution model rather than just read about it. In short: A landscape evolution model is a physically-based numerical model that simulates changing terrain over the course of time. The change in, or evolution of, terrain, can be due to: glacial or fluvial erosion, sediment transport and deposition, regolith production, the slow movement of material on hillslopes, more intermittent events such as rockfalls, debris flows, landslides, and other surface processes.

Key takeaways

Landscape evolution model belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Landscape evolution model to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Landscape evolution model from memory before moving on to harder problems.

Reference excerpt

A landscape evolution model is a physically-based numerical model that simulates changing terrain over the course of time. The change in, or evolution of, terrain, can be due to: glacial or fluvial erosion, sediment transport and deposition, regolith production, the slow movement of material on hillslopes, more intermittent events such as rockfalls, debris flows, landslides, and other surface processes. These changes occur in response to the land surface being uplifted above sea-level (or other base-level) by surface uplift, and also respond to subsidence. A typical landscape evolution model takes many of these factors into account. Landscape evolution models are used primarily in the field of geomorphology. As they improve, they are beginning to be consulted by land managers to aid in decision making, most recently in the area of degraded landscapes. The earliest landscape evolution models were developed in the 1970s. In those models, flow of water across a mesh was simulated, and cell elevations were changed in response to calculated erosional power. Modern landscape evolution models can leverage graphics processing units and other acceleration hardware and software, to run more quickly.

See also Hillslope evolution SIBERIA, [1] CAESAR-Lisflood, [2] LANDIS II, [3], an open-source, forest landscape model that simulates future forests pyBadlands, [4] Community Surface Dynamics Modeling System, [5]

References

Worked examples

Example 1 — a first encounter with Landscape evolution model

Start with the simplest possible case. Write down what Landscape evolution model claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Landscape evolution model before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Landscape evolution model ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Landscape evolution model

In research: Landscape evolution model appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Landscape evolution model in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Landscape evolution model is common in secondary-school and first-year university syllabi. It links to neighbouring topics Geomorphology models, Geomorphology stubs, Mathematical modeling, so understanding it makes those chapters shorter.
In everyday life: Look for Landscape evolution model outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Landscape evolution model in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Landscape evolution model means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Landscape evolution model out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Landscape evolution model in simple terms?

Why does Landscape evolution model matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Landscape evolution model?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Landscape evolution model.