试论吉林省北方水稻土的特征与类型

DISCUSSIN CHARACTERISTIC AND TYPE OF THE PADDY-RICE SOIL IN NORTH CHINA’S JILIN PROVINCE

摘要:

本文分析了北方水稻土剖面中铁和粘粒的移动以及腐殖质的组成,并指出:北方水稻土与它的母土比较,铁的游离度、晶化度和活化度增高,粘粒下移,已具备水稻土的基本技术特征,淋溶过程弱,胡敏酸与富里酸比值高,又有别于南方水稻土。

Abstract:

After analysised the movement of iron and clay particles and the compositions of humus in northern paddy-rice Soil, this article pointed out that northern paddy-rice Soil in comparision with it’s forming Soil for free degree of iron and crystallinity and activity were risen, but day particles downward moved. It already possess the main characteristics of the paddy-rice Soils. It’s process of leaching was weeken and the value of huminacid and fuvicacid were higher than 1. It was differed from southern paddy-rice soil.