摘要
本文从全国范围内全面地研究了灌淤土的形成特点，主要表现在：（１）地面的抬升和耕层的加厚；（２）有机质及Ｎ、Ｐ、Ｋ等养分的增加；（３）土体会水量的提高；（４）可溶盐和石膏的淋洗；（５）碳酸盐和石膏的淋溶与补充；（６）灌淤层理的消失和土壤物理性状的改善等。总结了灌淤土的诊断层──灌淤表层的特点，阐阴了灌淤土在土壤系统分类中的位置：灌淤土作为人为土壤，它与干旱土、潮湿土、始成土和新成土等其它土壤具有很大的差别。最后，文章将灌淤土续分为六个亚类：普通的、水耕的、盐化的、潮的、肥熟的和冷性的灌淤土，并提出了灌淤土的检索。
The genetic
characteristica of the warpic soils in the wkole Chine were foundin the present study to include;
(1) Raising of land surface and thickening of thecultivated layer; (2) Increase of organicmatter
and N, P, K and other nitrous ele-nients; (3) Rising of soil moisture; (4) Leaching out of soluble
salt and gypsum;(5) Leachingand replenishing of carbonates and clay; (6) Vanishing of
warpicstratification and improvement of soil physical preperties. The paper also summari-zes
the characteristics of the diagostic horizon of warpic soils (warpic epipedon);and pointed out
the position of warpic soils in the classification system. As anth-ropic soils, the warpic soils
are much defferent from the arid soils, tke udic soils,the Inceptisols and the Entisols. At last,
the paper divides the warpic soils intosix subtypes: comtnonic, hydragric, saltic, udic, fimic
and frigic warpic soil, andputs forward tke indexes to the warpic soils.
出处
《土壤学报》
CAS
CSCD
北大核心
1995年第4期437-448,共12页
Acta Pedologica Sinica
基金
中国科学院特别支持
国家自然科学基金
关键词
灌淤土
土壤分类
灌溉土壤
形成
Warpic soils,
Anthropic soils,Soil classification
