新疆阿尔泰山的灰黑土区域性形成性特点的研究

新疆阿尔泰山的灰黑土形成过程主要有腐殖质化过程、粘化过程、化学风化过程、生物富集过程等，粘粒硅铝率淋淀比１．１６，硅铝铁率淋淀比１．１７，粘土矿物以伊利石、蒙脱石为主，Ｒ＝０．７７．与我国东部同类土壤比较，区域性形成特点十分显著本文对其分类问题进行了探讨。

Study On The Genetic And Regiond Features Of The Gray Soil Under The Forests in Xinjiang''S Aerial Mountain Area

The main genetic processes of the gray soil under the forests in xinjiang's Aerial mountain area include hu on, argillication, chemical weatherign. biological returning salt-particle. The proportion of leach and illuvianon of SiO2/Al2O3 is 1.16, and that of SiO2, R2O3 is 1.17, and have the clay minerals heing dominated by iuite and montmorillonite, R is 0.77.The regional features of its genetic characteristics are very obvious as compered with the sim soil in the east of china and inquire into the question of the siol classification.