SOIL CONDITION RECORDING THE LONG TERM CLIMATIC CHANGE
土壤是气候变化的长期记录者

Climate is one of the factors of soil formation, on the other hand, soil condition records the long term climatic change. From judging the definite soil type and evolution, the changing of climatic condition may be correlated.1. Red weathering crusts and soils in South China were formed in Quaternary Period, especially the upper homogeneous red clay and red soils were formed in the Late Pleistocene and up to now. The African and Australian Continents were covered by comparatively ancient red crusts since Tertiary Period, but the arid and semi-arid soil types are found.2. The land surface of North Europe and North America adjacent North-polar region were free from ice cover around 12 000 a B. P., since then, the podsolic and peat soil are generated.3. Buried soils occurred under the thick loess and volcanic ash stratum recording the changing of climatic variations in the Quaternary.