土纲

新疆干旱土纲基层分类探讨

Basic Taxonomy of Aridisols in Xinjiang

供试土壤在系统分类中划分为2个土纲，3个亚纲，6个土类；

The soils are divided into 2 Order , 3 Suborder , 6 Groups in Soil Taxonomy ;

分布在中山区暖温带湿润地区的土壤为淋溶土纲、简育湿润淋溶土土类。

And the soil developed in the humid and warm region at mountain waist area to be Hap Udic Luvisols .

人为土纲再继分为土类：灌淤土，灌耕土（高度熟化），灌漠土（初步耕作熟化）等。

The artificial soil order can be further classified into soil group as irrigation-warping soil , irrigation-cultivated soil , irrigation-desert soil etc.

把该区土壤划分为2个土纲、3个亚纲、3个土类和5个亚类。

According to the Taxonomy , the soil is divided into 2 orders , 3 sub orders , 3 great groups and 5 subgroups .

在土壤系统分类研究中，干旱土纲是其重点的研究课题之一。干旱土纲的壤质与砂砾质土壤，由于面积大、分布广、土地利用方向不同，要求我们划分出来；

The loamy soil and gravel soil of aridisol order should be distinguished due to their large area , wide distribution and different direction of land utilization .

根据土壤特性，按照《中国土壤系统分类（修订方案）》，9个剖面分属4个土纲、5个土类、5个亚类。

According to Chinese Soil Taxonomic Classification ( Revised Proposal ), nine soil profiles respectively belonged to 4 soil orders , 5 soil great groups and 5 soil subgroups .

所以这些土壤在系统分类中都应该划分到人为土纲中去，作为人为荒漠绿洲土亚纲，它是荒漠地区农耕土壤的一个独立体系。

Therefore , these soils should be classified into , artificial soil order in systematic classification . As the artificial desert oasis soil suborder , it is an independent system of cultivated soil in desert area .

并建议在人工土纲下独立出一土类工程扰动土类，并根据扰动类型的不同，将工程扰动土分为工程堆垫土、工程下陷土。

The paper suggest that to put forward engineering disturbed soil type in artificial soil order , and on the grounds of disturbance type , then divide engineering disturbed soil into engineering heaping soil and engineering sinking soil .

目前，儋州市已拟定28个土系，归属于16个亚类，13个土类，9个亚纲，7个土纲。

Presently , 28 soil series in studied area were established , relegated to 16 subgroups , 13 soil groups , 9 suborders and 7 soil orders .

通过对西天目山自然保护区的多年野外调查和土样的分析测定，把该区的土壤划分为3个土纲，6个土类，10个亚类，20个土属。

Through field survey in the nature reserve of Mt. West Tianmu and analysis of the soil samples collected from this area , the soils could be classified 3 orders , 6 great groups , 10 subgroups and 20 families .