Species richness and vegetation pattern in interdune lowlands of an active dune field in Inner Mongolia, China

Zhimin Liu, Xiaolan Li, Qiaoling Yan, Jianguo Wu

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Vegetation pattern in lowlands between active sand dunes has rarely been studied, but it may play an important role in maintaining the biodiversity. This paper aims to quantify relationships between lowland area and species richness, composition and vegetation distribution and to provide suggestions on biodiversity conservation in the active dune field. Considering each interdune lowland as a self-contained unit, we investigated species composition and vegetation pattern in 25 interdune lowlands (ranging from 0.06 ha to 9.5 ha) of an active sand dune field. Our results showed that species richness increased with lowland area following a power function. The richness of psammophytes relative to the overall species richness decreased with lowland area logarithmically, but increase in lowland area did not lead to significant decrease in psammophyte's richness. With decrease of lowland area, frequency of psammophytes logarithmically increased, but that of nonpsammophytes logarithmically decreased. When the lowland area was about 2 ha, frequency of the psammophytes was equal to that of the nonpsammophytes (limnocryptophyte-meadow species and steppe species). Furthermore, a consistent pattern of vegetation differentiation along the direction of dune advancement occurred for lowlands larger than 1 ha: a psammophyte zone near the foot of leeward slope, a limnocryptophyte-meadow species zone in the central part of interdune lowland, and then followed by a psammophyte zone towards the foot of the windward slope. We concluded that lowland size is an important determinant of species diversity and vegetation pattern, and thus has implications for biodiversity conservation in sand dune fields.

Original languageEnglish (US)
Pages (from-to)29-39
Number of pages11
JournalBiological Conservation
Volume140
Issue number1-2
DOIs
StatePublished - Nov 2007

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dune field
dunes
lowlands
species richness
dune
species diversity
vegetation
China
biodiversity
meadow
steppe
meadows
steppes

Keywords

  • Biodiversity conservation
  • Limnocryptophyte species
  • Psammophyte
  • Semi-arid inner dunes
  • Species-area curve
  • Steppe species

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Nature and Landscape Conservation

Cite this

Species richness and vegetation pattern in interdune lowlands of an active dune field in Inner Mongolia, China. / Liu, Zhimin; Li, Xiaolan; Yan, Qiaoling; Wu, Jianguo.

In: Biological Conservation, Vol. 140, No. 1-2, 11.2007, p. 29-39.

Research output: Contribution to journalArticle

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