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。
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.
出处
《中国沙漠》
CSCD
北大核心
1997年第4期351-354,共4页
Journal of Desert Research
基金
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
