地貌形态分类的数量化研究

用数量分析法进行地貌分类时会遇到数据怎么量取、样本的基本单位怎么选择、样本基本单位的界线怎么定、样本选择多少为宜等问题,文章就这些问题的解决做了探索。最后分析并讨论了用数量分析法得出的分类结果,得出用数量法进行地貌分类时以细致、定量、综合、三性优于传统分类法的结论。

Quantitative Analysis for Classification of Geomorphological Types

For decades,people have studied geomorphological classification in different ways and from different perspectives,and much progress has been made and each scheme has played a role in the development of geomorphology.In recent years,a statistical method has used to study geomorphology widely.This study empirically shows that it is also possible to classify geomorphological forms using mathematic method.It is different from the traditional method of classification.The main principle of quantitative analysis is to consider all factors synthetically,contrast all the data of each sample and make a classification grade according to the degree of similarity.The most similar and smallest geomorphological unit is taken into the first degree,the next most similar and small geomorphologic unit into next degree,the more different and bigger geomorphologic units into next and next degrees.We continue to proceed in this manner until we can classify the whole area's geomorphological forms. This paper considers computer based quantitative analysis as a means to classify the geomorphological forms of Liangcheng County.It discusses a quantitative method of classifying geomorphological forms.As with the introduction of any new method to a subject,there are a number of technical challenges to be solved. Here we make a thorough investigation of problems such as how to measure and obtain data,how to select the basic sample units,how to determine the sample boundary lines,the optimum number of samples to take,etc.using quantitativeing analysis to classify geomorphologic forms,which has advantages over traditional classification in three aspects: detail,quantification and synthesis.