中国东北样带(NECT)森林区域中主要树种空间分布特征

doi:10.11707/j.1001-7488.20000612

Abstract

Abstract: The spatial characteristics of distribution for 16 major tree species (genus) at NECT which is basically a gradient driven by moisture were studied by geostatistics and fractal methods.The patch size for Populus davidiana,Qucercus mongolica,Acer mono and Betula platyphylla were about 372 km,but the patch size for Pinus koraiensis,Phellodendron amurense,Betula costata,Tilia spp.,Juglans mandshurica,Ulmus spp.,Fraxinus mandshurica,Fraxinus rhynchophylla,Betula dahurica,Picea spp., Abies nephrolepis,Larix spp. were less than 10 km.The distribution of tree species(genus)were figured out by kriging.Betula dahurica,Populus davidiana,Tilia spp and Qucercus mongolica were distributed in the whole study area from 130°E～131°E so that they had strong drought tolerance,however,Larix spp.,Abies nephrolepis,Picea spp.,Betula platyphylla,Acer mono,Betula costata and Pinus Koraiensis were located in 126.6°E～131.3°E so that they had strong drought intolerance.Phellodendron amurense,Juglans mandshurica,Fraxinus mandshurica,Ulmus spp. and Fraxinus rhynchophy which located in 125.9°E～129.1°E had middle class of drought tolerance,so that they had the highest average fractal dimension and the most complex spatial distribution than the species of drought tolerance and drought intolerance.

Key words: Spatial distribution characteristics for tree species, Northeast China Transect, Geostatistics, Fractal

Chen Xiongwen;Zhang Xinshi;Zhou Guangsheng;Chen Jinzheng. SPATIAL DISTRIBUTION CHARACTERISTICS OF MAJOR TREE SPECIES AT NECT—GEOSTATISTICS AND FRACTAL METHODS[J]. Scientia Silvae Sinicae, 2000, 36(6): 35-38.

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SPATIAL DISTRIBUTION CHARACTERISTICS OF MAJOR TREE SPECIES AT NECT—GEOSTATISTICS AND FRACTAL METHODS

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