Overview

climax vegetation

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brown earth

Overview page. Subjects: Plant Sciences and Forestry — Ecology and Conservation.

A freely draining, and only slightly horizonated, soil-profile type. It has a mull humus in the surface horizon and very little differentiation of horizons below. Brown earths are...

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formation

Overview page. Subjects: Ecology and Conservation — Plant Sciences and Forestry.

1 (plant formation) In vegetation description and analysis, a classificatory unit which usually implies a distinctive physiognomy rather than a distinctive species composition....

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lithosere

Overview page. Subjects: Plant Sciences and Forestry — Ecology and Conservation.

The sequence of plant communities, proceeding through all the stages of a succession to a climax vegetation, which begins on a bare rock surface.

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organismic

Overview page. Subjects: Ecology and Conservation — Plant Sciences and Forestry.

Applied to groups of organisms, or communities, that are thought to have properties (e.g. homoeostasis or reproduction) similar to those of a single living organism, making them...

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post-climax

Overview page. Subjects: Plant Sciences and Forestry — Ecology and Conservation.

In the mono-climax model of climax vegetation development, communities differing from the climatic climax, owing to the presence of more favourable conditions for vegetation development....

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root–shoot ratio

Overview page. Subjects: Ecology and Conservation — Plant Sciences and Forestry.

The ratio of the amount of plant tissues that have supportive functions to the amount of those that have growth functions. Plants with a higher proportion of roots can compete more...

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scrub vegetation

Overview page. Subjects: Plant Sciences and Forestry — Ecology and Conservation.

A general term for vegetation dominated by shrubs, i.e. low, woody plants, which typically forms an intermediate community between grass or heath and high forest. Successional change is not...

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serpentine barrens

Overview page. Subjects: Plant Sciences and Forestry — Earth Sciences and Geography.

Impoverished, often scrubby or heathy vegetation associated with serpentine rocks. On weathering these rocks release an excess of magnesium into the soil, and this often inhibits the...

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vegetation

Overview page. Subjects: Earth Sciences and Geography.

A collection of plants of diverse or the same species. It is classified in many different ways, according to origin, appearance, and functional characteristics. Geographically, much...

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