Shrubland

Source: Wikipedia, the free encyclopedia.

Low shrubland in Hawaii
Scrub vegetation with cactus in Webb County in south Texas
Mediterranean shrubland in Sardinia, Italy

Shrubland, scrubland, scrub, brush, or bush is a

browsing
.

Shrubland may be unsuitable for human habitation because of the danger of fire. The term was coined in 1903.[1]

Shrubland species generally show a wide range of

lignotubers, and fire-induced germination.[2]

Botanical structural form

In

subshrubs less than 1 m high.[3]

There is a descriptive system widely adopted in Australia to describe different types of vegetation is based on structural characteristics based on plant life-form, as well as the height and foliage cover of the tallest stratum or dominant species.[4]

Shrubland in Prince Edward County, Ontario.

For shrubs that are 2–8 metres (6.6–26.2 ft) high, the following structural forms are categorized:

  • dense foliage cover (70–100%) — closed-shrubs
  • mid-dense foliage cover (30–70%) — open-shrubs
  • sparse foliage cover (10–30%) — tall shrubland
  • very sparse foliage cover (<10%) — tall open shrubland

For shrubs less than 2 metres (6.6 ft) high, the following structural forms are categorized:

  • dense foliage cover (70–100%) — closed-
    heath
    or closed low shrubland—(North America)
  • mid-dense foliage cover (30–70%) — open-heath or mid-dense low shrubland—(North America)
  • sparse foliage cover (10–30%) — low shrubland
  • very sparse foliage cover (<10%) — low open shrubland

Biome plant group

Fynbos in South Africa

Similarly, shrubland is a category that is used to describe a type of biome plant group. In this context, shrublands are dense thickets of evergreen sclerophyll shrubs and small trees,[5] called:

In some places, shrubland is the mature vegetation type. In other places, it is the result of degradation of former forest or woodland by logging or overgrazing, or disturbance by major fires.[citation needed]

A number of

World Wildlife Fund biomes are characterized as shrublands, including the following:[6][7]

Desert scrublands
Nullarbor plain
in Australia

Xeric or desert scrublands occur in the world's

storage organs to store water, and long taproots to reach groundwater.[6]

Mediterranean scrublands

Mediterranean scrublands occur naturally in the

Mediterranean Basin are known as garrigue in France, phrygana in Greece, tomillares in Spain, and batha in Israel. Northern coastal scrub and coastal sage scrub occur along the California coast, strandveld in the Western Cape of South Africa, coastal matorral in central Chile, and sand-heath and kwongan in Southwest Australia.[7]

Interior scrublands

Interior scrublands occur naturally in semi-arid areas with nutrient-poor soils, such as on the

is another example of interior scrublands.

Dwarf shrubs
Kilimanjaro

Some vegetation types are formed of

.

See also

Notes and references

  1. ^ Merriam-Webster's Collegiate Dictionary, 11th Edition (2003).
  2. .
  3. ^ Woodward, Susan. "Mediterranean Shrublands". Geography 235. Radford University. Retrieved 7 October 2010.
  4. ^
    World Wildlife Fund. Archived from the original
    on 2 January 2011. Retrieved 7 October 2010.
  5. ^ on 11 January 2017. Retrieved 7 October 2010.