Acta Geographica Sinica ›› 2002, Vol. 57 ›› Issue (7s): 82-86.doi: 10.11821/xb20027s012

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The Basis for Establishing China's 1:1,000,000 Soil Database

ZHANG Dingxiang, SHI Xuezheng, YU Dongsheng, PAN Xianzhang, SUN Weixia   

  1. Institute of Soil Science, CAS, Nanjing 210008, China
  • Received:2002-05-09 Revised:2002-10-22 Online:2002-12-25 Published:2002-12-25
  • Supported by:

    Knowledge Innovation Project of CAS, No.KZCXZ-308; National Key Project for Basic Research, No.G1999011810; Research Project of Institute of Soil Science, CAS, No.005102

Abstract:

An overview of the development process of soil information system in China and abroad, which was the basis of "digtal soils", was conducted systematically, and particularly the establishing basis and the design of spatial database for China's 1:1,000,000 soil database were introduced in detail. According to the regulation of the research group, the codes for soil order, great group and subgroup were designed and were also listed in this article. Then the creation method, main content and corresponding parameters of the soil attribute database were all expounded. Furthermore some preliminary suggestions to the national soil database were also put forward.

Key words: soil map, soil database, codes for soil types, soil spatial database, soil attribute database