Systematic Analysis of Periodic Vegetation Patterns

スポンサーリンク

概要

• 論文の詳細を見る

• Spatially periodic vegetation patterns are observed in many semiarid regions. They are classified according to their symmetry as vegetation stripes on hillsides or spotted patterns on flat ground. We propose a simple model based on the interactions among water, soil and vegetation, which gives a systematic description of the variety of vegetation patterns. First, it describes most characteristics of vegetation stripes investigated in field observations and agrees with the hypothesized origin of vegetation stripes deduced from field observations, the spatially heterogeneous infiltration rate of surface water into soil. Moreover, it indicates that spotted patterns emerge from the same dynamics. Second, the pattern selection derived from the model is consistent with that found in real phenomena, i.e.Predominantly bare ground with spotted vegetation in the most severe environments, banded patterns in intermediate environments and nearly continuous vegetation with spotted bare ground in the most favorable environments.

• 理論物理学刊行会の論文
• 2001-10-25

著者

• Okayasu Tomoo

  Graduate School Of Agricultural And Life Sciences The University Of Tokyo

• Aizawa Yoji

  School Of Science And Engineering Waseda University

• OKAYASU Tomoo

  Graduate School of Science and Engineering, Waseda University:(Present address)Graduate School of Agricultural And Life Science, The University of Tokyo

• Aizawa Yoji

  School of Science and Engineering, Waseda University

関連論文

• Patterns of floristic composition under different grazing intensities in Bulgan, South Gobi, Mongolia
• Classification of the size distribution of soil aggregates in arid and semi-arid regions in East Asia
• Monitoring land degradation in mountainous Mongolia by spectral unmixing of satellite imagery
• Systematic Analysis of Periodic Vegetation Patterns

スポンサーリンク