华南花岗岩残积土红土化程度的地带性与香港该类土不发育的原因

STUDY ON LATITUDINAL EFFECT ON LATERITIZATION OF ELUVIAL SOIL ON GRANITE AND CUASE FOR WEAK LATERITIZATION OF THE SOIL IN HONGKONG

从华南花岗岩残积土红土化程度的地域变化规律出发 ,通过香港与华南沿海各地花岗岩残积土的化学成分及红土化指标对比 ,作者发现香港花岗岩残积土无论厚度、类型 ,还是红土化程度都具有与所处气候环境不协调的特点。

According to the regulaities of regional variation of lateriatization degree of the eluvial soils on granites in South China, a comparison between the chemical compositions and lateritization indexes of ellucial soils on granites in Hong Kong and various areas of South China coastal region permitted the authors to find that the eluvial soils on granite in Hong Kong is characterized by incongruent climate condition at which it occurs either in its thickness and types in its lateritization degree. In this paper a further discussion is made on the causes for undeveloped eluvial soil on granite in Hong Kong and its effect on engineering properties.