Affiliations: Research Center for Eco-Environmental Sciences,
Chinese Academy of Sciences, Beijing 100085, China. E-mail:
[email protected] | Open Research Laboratory of Forest Plant Ecology,
Northeast Forest University, Harbin 150040, China | CCAS, La Graineterie 18410 Brinon, France
Abstract: After the analysis on the linages of species, the fractal dimensions
of vegetation and soil in a managed larch(Larix gmelini) forest in Daxingan
Mountains, NE China were estimated separately, and their scale correlation was
discussed. (1) The dominant species of the larch forest, larch and the
important accompany species, birch(Betula platyphylla) were homogeneously
distributed along the transect. The other species were heterogeneous, and can
be divided into three groups located on the right , left and central parts of
th transect respectively. The transect can be separated into two parts at the
position for the 29th quadrat(580m). (2) The fractal dimension in the large
scale range from 200 to 400m was lower than that in the small scale range from
0 to 200m in the forest, indicating the different variation regularities of
spatial heterogeneity in different scale ranges. The inflection point at 200m
was one of the key scales of spatial hierarchy of the larch forest. (3) The
scale variation of the forest was correlated with that of soil pH on large
scales, which reflected the indirect control of the dominant species to the
spatial pattern and species distribution of understories by changing soil
acidity in the forest and the indirect effects of forest management.
