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《Journal of Wuhan Botanical Research》 2009-02
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Population Structure and Spatial Distribution Pattern of Natural Regeneration Larix principis-rupprechtii in Guandi Mountain

WU Xiao-Gang,GUO Jin-Ping(College of Forestry,Shanxi Agricultural University,Taigu,Shanxi 030801,China)  
Larix principis-rupprechtii is one of main constructive tree species of conifer forest which is distributed in semi-humid region,north China.The population structure and spatial pattern of different size classes were studied in a natural regeneration stand which lies in a clear-cut strip.The results revealed that Larix principis-rupprechtii population trends decline for the shortage of seedling and sapling.But the population has the potential to be stable in respect that long life span,abundant trees of middle size class and disturbance.The seedlings and saplings were clumped.Trees of 2.5 cmDBH≤7.5 cm were clumped under the scale of 2 m×2 m,whereas which trended to distribute randomly with the scale increasing.The others were randomly distributed.We concluded that the current distribution pattern of Larix principis-rupprechtii was related to itself biological characteristics and light.
【Fund】: 国家自然科学基金资助项目(30470316);; 山西省攻关项目(051024)
【CateGory Index】: Q948;S791.22
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