西藏羊卓雍湖流域土壤环境中物质含量与流失的初步探讨

A Preliminary Study on the Content and Loss of Normal Materials in the Soil of Lake Yang Basin in Tibet

本文利用随机布点法,布点采集西藏羊卓雍湖(羊湖)流域的土坯样品,测定了SiO_2、Si、Al_2O_3、Al、TFe_2O_3、Fe、Ca、Mg、K、Na、MnO、SO_3等12种物质含量。结果表明,七种主要类型土壤相互间元素含量有一定的差异;同一土壤中元素含量波动较大。本文还对羊湖流域的土壤进行了淋洗实验,计算了八种离子的淋失量。

This paper reports the contents of 12 materials , ie. SiO2, Six Al2O3, AK Fe2O3 Fe, Ca, Mg, K, Na, MnO and SO3, in the soil samples in the basin of Lake Yang in Tibet . The results show that there is a certain difference of the contents of elements among the main 7 types of soil and a comparatively large fluctuation of element contents in the same soil sample . Also the leaching loss of 8 kinds of ions has been tested and calculated.