地理科学 ›› 2001, Vol. 21 ›› Issue (1): 19-23.doi: 10.13249/j.cnki.sgs.2001.01.19

• 论文 • 上一篇    下一篇

我国水平地带性土壤中有机质的空间变化特征

王秀红   

  1. 中国科学院地理科学与资源研究所, 北京 100101
  • 收稿日期:2000-01-14 修回日期:2000-04-20 出版日期:2001-01-20 发布日期:2001-01-20
  • 基金资助:
    国家自然科学基金重点项目(49731020)支持。

Spatial Variation of Organic Matter in Horizontal Zonal Soils in China

WANG Xiu-hong   

  1. Institute of Geographic Sciences and Natural Resources Research, The Chinese Academy of Sciences, Beijing 100101
  • Received:2000-01-14 Revised:2000-04-20 Online:2001-01-20 Published:2001-01-20

摘要: 主要根据全国第二次土壤普查的成果,对我国水平地带性土壤中有机质的含量和胡敏酸与富里酸比值的空间变化特征进行了概括,进而探讨了在不同自然和人为因素影响下,土壤有机质的累积状况与稳定性特征。

Abstract: Spatial variation of organic matter content and humus HA/FA in horizontal zonal soils in China is studied based on the data obtained from the second national soil general investigation.The results suggest:1) Indicated by organic matter property, yellow brown earth zone is a unique zone in latitudinal zonal soil spectrum.2) Organic matter content and its variation range decrease from east to west in longitudinal zonal soil spectrum.Soil organic matter content in warm temperate zone is higher than that in its neighboring temperate zones, higher soil humus HA/FA and its bigger range results from the middle temperature and moisture conditions and moderate human influence.3) Appropriately influenced by human activities, organic matter content of fertile soils usually decreases, while that of infertile soil increases, however both of them have a higher HA/FA.4) Soil ecosystem has the different ways of preserving organic matter.For example, the accumulation amount of organic matter is bigger in Northeast China, the forming speed of organic matter is fast in Southeast China, while the soil humus HA/FA or the relative content of inactive humus and humin is bigger in Northwest China.

中图分类号: 

  • S153.6+21