Analysis on temporal-spatial characteristics of landscape pattern of land-cover

Land-cover plays an important role in keeping ecological balance, and research on the landscape pattern of land-cover is of great ecological significance. In this paper, fractal model and other landscape calculation models are applied to analyze the characteristics of land-cover by integrating traditional calculation programs into GIS. In the case study of Zaduo County and Zhiduo County (both located in Qinghai Province), land-cover data of 2000 year and 2007 year are used. The fractal dimension index is obtained by constructing fractal model. Meanwhile, the other indicators of the landscape pattern are calculated through Fragstats software. Based on the indicators, each landscape pattern of the two counties can be ranked according to the complexity (the Fractal Dimension Index-D) level and stability (Stability Index-Si) level, and the landscape pattern characteristics and the evolvement mechanism of the study areas are analyzed. By analyzing landscape pattern characteristics and the evolvement mechanism, the results obtained are extremely useful for the government to optimize landscape pattern and manage land utilization in a sustainable way.