中国土壤系统分类中基层分类的研究

The project coordinated 16 research institutes all over China and set up 20.typical pilot areas for basic category soil classification study. The study has suggested the principles and methodology for basic category soil classification in line with the essence of Chinese Soil Taxonomy; defined the concept of characteristic soil layer" and its application in setting up soil Series; proposed 750 soil Series which came from all over the country and all 14 soil Orders of Chinese Soil Taxonomy hence are the important basis for further study; established the.methodology of soil mapping of detailed map scale based on soil Series and its related legend system; applied the basic categories for multi-purpose interpretation assisted by the built database and various models. Higher categories of Chinese Soil.Taxonomy also got modified during the systematic study. This project is fundamental in the view of completing the system of Chinese Soil Taxonomy and, enhancing its application in soil resource evaluation and sustainable management. During the study,.six monographs, 130 journal papers among which six are of SCI-source papers, appeared as supported by the project.

建立中国土壤系统分类中土族、土系的划分原则、标准和指标体系；通过系统研究和参比建立包括所有土纲并覆盖我国主要地区的中国土系概要和土系数据库；按系统分类的原则和方法进行典型地区大比例尺土壤制图并在此基础上研究基层分类信息在土地资源评价中的应用；对完善和发展中国土壤系统分类这一系统工程，服务于土地的持续利用具有重要的意义。.