世界低煤阶煤资源及其分类

本文介绍了世界低煤阶煤炭资源及其分类。现存不同目的的两种煤分类系统：学科／成因分类和技术／商业用煤分类，它们的应用范围、方法和目标都互不相同。现有分类系统要依据不同分类的需要，考虑修订，避免出现混乱情况，有必要依照国际煤炭分类情况及对我国的适用性，重新评价现存的中国煤炭分类。为此，重新制订中国低煤阶煤分类是必要的。

RESOURCES OF LOW RANK COAL IN THE WORLD AND ITS CLASSIFICATION

The resources of low rank coal in the world have introduced in this paper. There are two systems of coal classification:scientific/genetic and tech-nical/commercial classification of coal, both of them have illustrated. It has also be-come necessary to distinguish scientific from technical ones,both with different fields of application,means,objectives and purposes.The enormous diversity in exi-sting systematics on one hand,and the clearly distinct purpose required on the oth-er,has led to a very confusing situation.This has raised the need to elaborate sys-tematizations which will be of international scope and acceptance.If so, it is nece-ssary to draft a new classification or codification system of low rank coal in China.