摘要
为了探究植被空间的尺度特征,利用变差函数和空隙度指数作为多尺度空间格局分析方法。结果表明,两种方法有较强的互补性,变差函数分析能判断多个方向上的特征尺度,并且对特征尺度的形成具有一定解释力,而空隙度指数法不仅能发现特征尺度,而且能发现景观中的分形结构,因此两种方法的结合对于研究植被空间格局特征有着独特优势。研究北京市亦庄新城的植被空间特征尺度,两种方法都一致表明1km是其特征尺度。该成果对于确定植被空间生态功能和过程的尺度,及区域生态建设所要考虑的尺度问题,有重要的参考价值和指导意义。
In order to study the scale characteristics of vegetation, the variogram and lacunarity index are combined in the multi-scale analysis. The results show that these two are complementary to each other. Variogram analysis can distinguish scale characteristics of different directions and can explain the formation of the characteristic scale. Lacunarity index analysis can not only find characteristic scale but also identify the fractal structure. The vegetation of Yizhuang, Beijing , is analyzed by means of variogram and lacunarity index respectively, which consistently showed that the 1km is the characteristic scale. The combination on these two methods will contribute a lot to the spatial pattern study of vegetation and local ecological construction.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2008年第5期788-791,共4页
Journal of Liaoning Technical University (Natural Science)
基金
北京市自然科学基金重点基金资助项目(8011001)
关键词
变差函数
空隙度指数
特征尺度
variogram
lacunarityindex
characteristic scale
