Dynamics of Landscape Pattern at Huoditang Forest Region

WANG Bin; ZHANG Shuo-xin; YANG Xiao-sheng

Using the data of forest resources inventory at Huoditang forest region in the Qinling Mountains in 1958, 1988 and 2004, GIS techniques and quantitative analysis of landscape were adopted to study the landscape types, feature, dynamic of patterns and the influence of human interferences on the landscape patterns during the three periods. The results showed that the landscape biodiversity and species richness increased by intensified external interferences and the types of secondary landscape were more than those of primary ones. The landscape types degenerated or disappeared after serious artificial disturbances, while the extents of some landscape types increased or appeared. Forest cutting made the patch fractal index decreasing and the patch shape becoming regular. But with the forest vegetation restoration at Huoditang forest region, the patch shape of various landscapes became irregular, and landscape heterogeneity started to increase. This reflects the influence of external interference to the forest landscape pattern and the dynamic process of forest independent recovery.

1. Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, Zhejiang, China

2. College of Forestry, Northwest Sci-Tech University of Agrculture and Forestry, Yangling 712100, Shaanxi, China)

Abstract: Using the data of forest resources inventory at Huoditang forest region in the Qinling Mountains in 1958, 1988 and 2004, GIS techniques and quantitative analysis of landscape were adopted to study the landscape types, feature, dynamic of patterns and the influence of human interferences on the landscape patterns during the three periods. The results showed that the landscape biodiversity and species richness increased by intensified external interferences and the types of secondary landscape were more than those of primary ones. The landscape types degenerated or disappeared after serious artificial disturbances, while the extents of some landscape types increased or appeared. Forest cutting made the patch fractal index decreasing and the patch shape becoming regular. But with the forest vegetation restoration at Huoditang forest region, the patch shape of various landscapes became irregular, and landscape heterogeneity started to increase. This reflects the influence of external interference to the forest landscape pattern and the dynamic process of forest independent recovery.

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Reference (18)

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Dynamics of Landscape Pattern at Huoditang Forest Region

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