Title: Spatial Pattern of Populus Euphratica Community of Desert Riparian Forest in Tarim River Basin
Abstract: The diameter at breast height(DBH) size structures,spatial patterns and spatial correlation of Populus euphratica and Populus pruinosa populations of desert riparian forest along the Tarim river were studied.The results show that the DBH size structures of P.euphratica and P.pruinosa populations are inverted pyramid shape,and it indicates they belong to declining populations.Ripley's K-function analysis indicates that the two populations present aggregation distribution at spatial scale,and the aggregation intensity of P.pruinosa population is smaller than P.euphratica's.Aggregation scale and aggregation intensity of P.pruinosa and P.euphratica declines gradually with the growing of two populations,and distribution pattern of adult trees trendes to be random.In terms of spatial correlation,P.pruinosa population presents mutual independence among different growth stages at spatial scales of 0—25 m,and small trees and middle trees of P.euphratica present significantly positive correlation at spatial scale of 5—10 m.Middle trees of P.pruinosa and P.euphratica are negatively associated at the scale of 23—25 m,and the two populations are correlated at small scales and independent at middle scales.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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Cited By Count: 1
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