| 景观间隙度指数在沙漠化研究中的应用 |
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| 引用本文： | 常学礼.景观间隙度指数在沙漠化研究中的应用[J].中国沙漠,1997,17(4):351-354. |
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| 作者姓名： | 常学礼 |
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| 作者单位： | 中国科学院兰州沙漠研究所 |
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| 基金项目： | 国家自然科学基金中国科学院留学回国人员择优支持基金 |
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| 摘 要： | 综述了间隙度指数在景观生态学和沙漠化研究中的应用，用实例介绍了间隙度指数的定义和计算方法。详尽地分析了流动沙丘面积相同，分布形式不同而产生的间隙度指数差异。结果表明，沙丘的分布形式越集中，沙丘的间隙度指数越大；反之亦然。同时还阐述了间隙度指数在沙漠化评价和沙漠化指征研究中的作用，并对其应用范围和前景作了说明
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| 关 键 词： | 间隙度指数 沙漠化 沙丘分布 |
THE APPLICATION OF LACUNARITY INDEX ON DESERTIFICATION RESEARCH |
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| CHANG Xue,li.THE APPLICATION OF LACUNARITY INDEX ON DESERTIFICATION RESEARCH[J].Journal of Desert Research,1997,17(4):351-354. |
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| Authors: | CHANG Xue li |
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| Abstract: | It has been reviewed to use lacunarity index for studying landscape patterns in desertification research and landscape ecology. The definition of lacunarity and method of calculation have been introduced to readers. The differentiations of calculating lacunarity indices of shifting sand dunes which have same area but different distribution forms are obvious. The value of lacunarity indices is in direct proportion to the degree of sand dune concentration. In addition, the lacunarity indices can be used to analyse distribution characteristics of desertification land in different spatial and temporal scales. |
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| Keywords: | Lacunarity index Desertification Distribution of sandy dune |
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