Landscape pattern variation of forest resources in typical forest zone of Changbai Mountains

Abstract

Abstract: Based on GIS and RS data of 1985 and 1999 and the ground infornmation from Lushuihe Forest Bureau, this paper studied the forest landscape pattern and its changes in typical forest zone of Changbai Mountains. According to the standard variance of patch areas in 1985 and 1999, the patch area distribution of mature conifer forest, mature broad-leaved forest, middle-aged conifer forest,and middle-aged broad-leaved forest、less symmetrical, showing that these land covers had landscape diversity and species diversity, According to landscape similarity index, the mature conifer forest, mature broad-leaved forest, middle-aged conifer forest and middle-aged broad-leaved forest,which were relatively stable than other land covers, made the majority of the landscape in the study area. According to patch density, the porosity of wetland was high in 1985 and 1999, indicating that wetland had little ho-mogenization and formed more mosaics. The fragmentation extent of farming land, due to multiple cultivating types, azimuths and shapes, was high in both phases. Attributing greatly to anthropogenic factors, the fragmentation extent of wetland was high all along. In brief, the forest landscape pattern was changed greatly in the studied phases, and human activities affected heavily on it.

Key words: Forest resources, Landscape index, RS, GIS

CLC Number:

Q948.3

YU Deyong, HAO Zhanqing, JIANG Ping, XIONG Zaiping, YANG Hui. Landscape pattern variation of forest resources in typical forest zone of Changbai Mountains[J]. Chinese Journal of Applied Ecology, 2004, (10): 1809-1814.

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