| Quantitative study of landscape patterns in homogenous carbonate rock distributed regions in Guizhou |
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| 作者姓名： | Qiu TAN Shijie WANG Yangbing LI |
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| 作者单位： | [1]State Key Laboratory of Environment Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China [2]Department of Geographical and Biological Sciences , Guizhou Normal University, Guiyang 550001, China |
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| 摘 要： | With the utilization of GIS software, research is conducted on （a） the characteristics of cells, fragmentation, and patch fractal of landscape based on homogenous carbonate rocks in Guizhou; （b） causes of the formation of these characteristics. It has been found that under the influence of lithology, the landscape of the study region as a whole shows consistency, yet embodies distinct diversity inside. The consistency is embodied in the following aspects： （a） the preponderant landscape consists of bushes and small woods; （b） secondary landscape is characteristic of forests and grounds covered with grass; （c） of all the patches making up the study area small patches are in the majority, with positive-skewed distribution of patches-as a result, steep peaks are characteristic of the charts showing the distribution of patches. The factor of scale is not taken into account in the study of patches. The shapes of patches tend to be regular with strong disturbances from human activities, and consequently, the values of fractal dimensions of landscape types tend to get smaller. The fragmentation of patches is more apparent in landscape under influence of human activities than the one without these disturbances. Compared with regions characteristic of homogenous dolomite, the characteristics of homogenous limestone areas are described as follows： （a） low utilization rate of water resource; （b） uneven distribution of diversified landscape; （c） weak resistance against disturbances from human activities; （d） the continuous degradation, ever-increasing fragmentation, intensification of spatial heterogeneity, and the deteriorating stability of landscape.
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| 关 键 词： | 碳酸盐岩 白云石 贵州 GIS |
Quantitative study of landscape patterns in homogenous carbonate rock distributed regions in Guizhou |
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| Qiu TAN Shijie WANG Yangbing LI.Quantitative study of landscape patterns in homogenous carbonate rock distributed regions in Guizhou[J].Chinese Journal of Geochemistry,2006,25(B08):174-175. |
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| Abstract: | |
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| Keywords: | homogenous limestone homogenous dolomite landscape pattern |
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