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毛乌素沙地中国沙棘无性系种群林缘扩散规律(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2001年02期
Page:
9-13
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
The Edge Dispersal Clone Population Regulation of Hippophae rhamnoides subsp. sinensis in the Mu Us Sandland
Article ID:
1000-2006(2001)02-0013-01
Author(s):
LI Gen-qian HUANG Bao-longTANG De-rui
Southwest Forestry College, Kunming 650224, China; Nanjing Forestry University, Nanjing 210037, China; Northwest Set-Tech University of Agriculture and Forestry,Yangling 712100,China
Keywords:
Hippophae rhamnoides subsp. sinensis Clone population Edge dispersal The Mu Us Sandland
Classification number :
*
DOI:
10.3969/j.jssn.1000-2006.2001.02.003
Document Code:
A
Abstract:
On the basis of investigated materials in the plot, the dynamics of edge dispersal of Hippophae rhamnoides subsp. sinensis clone population was studied. Edge dispersal was that the clone population continuously invaded the space outside forest and large gaps in the forest by clonal growth and resulted in a "stair shaped" mosaic system of relatively even-aged tree patches which develop in different stages, i. e. with the increasing of distance of the patches from the largest ramet, the mean age and mean height of ramets and population biomass decreased, the population density increased with linear function. The system could move forwards at the speed of 1 m/a or the patches shifted their sites each other, which led to the clone population and maintained its stable state in even large area.

References

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Last Update: 1900-01-01