利用分形理论对土地覆盖变化趋势的遥感定量研究

本研究在实地考察研究区获得详实资料的基础上，以分形为理论依据．充分利用多时相卫星遥感数字图像为主要资料源．参考相关资料，借助遥感图像处理分析手段，定量地分析评价了策勒绿洲的沙漠化状况及绿洲-荒漠交错带的演变趋势，并对分形理论在绿洲-荒漠交错带定量研究中的作用作了深入地探讨和验证．所建立的分形模型能够对地区发展建设的决策起到一个辅助、参考的作用．从而简化以往繁琐、复杂的研究过程。

Quantitative Research on the Change of Land Cover Based on the Fractal Theory and Remote Sensing

The main purpose of the paper is applying fractal theory to research on the change of transitional belt between oasis and desert, which is a typical ecosystem in arid zone. The land desertification and the change of transitional belt between oasis and desert in Yutian county are analyzed. Obtaining full and accurate information on the spot based on the fractal theory, using fully remote sensing image as the main research data and relative thematic map as reference data, aiding of PCI which is a powerful image processing software of remote sensing technique, The rational proposals are tabled for the desert controlling and area rebuilding in the future, furthermore, this paper deeply discusses and validates the effect of fractal approach applied in the desertification research. By this method, the new subject of fractal theory can be used in environmental protection and desertification harness. The model of fractal approach built on the research should be taken effect on the local development and auxiliary in local government's decision. To simplify the program of research and dynamically supervise the change of transitional belt by using quantificational index.