The cycle characteristics of Haloxylon ammodendron pattern and topography at multi-scales in Gurbantunggut Desert, China

The cycle characteristics of Haloxylon ammodendron pattern and topography at multi-scales in... We employed ecologically using Mexh and Mori wavelet methods to analyze the cycle phenomena and their maintaining mechanisms of the Haloxylon ammodendron distribution in complex longitudinal sand ridges (CLSRS). The results showed that ecologically using wavelet can distinguish H. ammodendron distributed in parallel-shaped, lattice-shaped and fork-shaped dunes with a dominant cycle of 165–180 m, 100–110 m and 70–80 m, respectively. Besides the dominant cycle, ecologically using Mori wavelet also showed 2–3 minor small peaks on different scales. The mechanisms to maintain the cycles at multi-scales of H. ammodendron relies on the seed spread, interference intensity in different topography and soil properties. The formations, configurations and presences of the three types of dunes should have some direct relations with the wind fields of the areas where the patterns are located, and also with the ground surface conditions. If the distribution pattern is periodic, meanwhile the abrupt change points are significant; we can predict the H. ammodendron distribution pattern in a certain area. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Ecology Springer Journals

The cycle characteristics of Haloxylon ammodendron pattern and topography at multi-scales in Gurbantunggut Desert, China

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Publisher
Springer US
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Ecology; Environment, general
ISSN
1067-4136
eISSN
1608-3334
D.O.I.
10.1134/S1067413613050159
Publisher site
See Article on Publisher Site

Abstract

We employed ecologically using Mexh and Mori wavelet methods to analyze the cycle phenomena and their maintaining mechanisms of the Haloxylon ammodendron distribution in complex longitudinal sand ridges (CLSRS). The results showed that ecologically using wavelet can distinguish H. ammodendron distributed in parallel-shaped, lattice-shaped and fork-shaped dunes with a dominant cycle of 165–180 m, 100–110 m and 70–80 m, respectively. Besides the dominant cycle, ecologically using Mori wavelet also showed 2–3 minor small peaks on different scales. The mechanisms to maintain the cycles at multi-scales of H. ammodendron relies on the seed spread, interference intensity in different topography and soil properties. The formations, configurations and presences of the three types of dunes should have some direct relations with the wind fields of the areas where the patterns are located, and also with the ground surface conditions. If the distribution pattern is periodic, meanwhile the abrupt change points are significant; we can predict the H. ammodendron distribution pattern in a certain area.

Journal

Russian Journal of EcologySpringer Journals

Published: Sep 5, 2013

References

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