Wind tunnel simulation of the aeolian erosion on the leeward side of barchan dunes and its implications for the spatial distribution patterns of barchan dunes

CATENA ◽  
2021 ◽  
Vol 207 ◽  
pp. 105583
Author(s):  
Dongxu Cai ◽  
Shengyu Li ◽  
Xin Gao ◽  
Jiaqiang Lei
Keyword(s):  
Spatial Distribution ◽  
Wind Tunnel ◽  
Distribution Patterns ◽  
Leeward Side ◽  
Spatial Distribution Patterns ◽  
Wind Tunnel Simulation ◽  
Aeolian Erosion ◽  
Barchan Dunes

Spatial Distribution Patterns of Seedling Emergence of Stipagrostis pennata in Gurbantonggut Desert

2012 ◽  
Vol 524-527 ◽  
pp. 2101-2108
Author(s):  
Xia Zhang ◽  
Wen Ling Wang ◽  
Huan Ge ◽  
Li Hong Long ◽  
Shao Ming Wang
Keyword(s):  
Spatial Distribution ◽  
Population Distribution ◽  
Seedling Emergence ◽  
Distribution Patterns ◽  
Leeward Side ◽  
Seedling Density ◽  
Spatial Distribution Patterns ◽  
Emergence Patterns ◽  
Distribution Rule ◽  
Significant Difference

The aim of this study was to investigate the spatial distribution patterns and the amounts of seedling density of S. pennata in different sample dunes in Gurbantonggut Desert. Results indicate that spatial patterns of seedling emergence of S. pennata were of general similar with the distribution patterns of its associated standing vegetations, and was greatly associated with spatial distribution of the threshold wind (≥6m.s-1) frequency from the various directions. There existed a significant difference in its seedling emergence patterns among the different parts of the dunes and the different directions around its parent vegetation beds. The highest seedling density was found to be on the top parts of sampling dunes and at the underlayer of standing vegetation beds of S. pennata, and higher seedling densities usually took place in the leeward side of the vegetation beds. These results had revealed the ecological characteristics of the population distribution rule and the recruitments mechanism of S. pennata.

scholarly journals Energy–water and seasonal variations in climate underlie the spatial distribution patterns of gymnosperm species richness in China

2020 ◽  
Vol 10 (17) ◽  
pp. 9474-9485
Author(s):  
Bikram Pandey ◽  
Janak R. Khatiwada ◽  
Lin Zhang ◽  
Kaiwen Pan ◽  
Mohammed A. Dakhil ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Species Richness ◽  
Seasonal Variations ◽  
Distribution Patterns ◽  
Spatial Distribution Patterns
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