我国灌淤土的形成和分类
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*中国科学院特别支持;国家自然科学基金


FORMATION AND CLASSIFICATION OF WARPlC SOILS IN CHINA
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    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.

    Abstract:

    The genetic characteristics of the warpic soils in the whole Chine were found in the present study to include;(1) Raising of land surface and thickening of the.cultivated layer;(2) Increase of organicmattcr and N,P,R and other nitrous elements;(3) Rising of soil moisture;(4) Leaching out of soluble salt and gypsum; (5) Leaching and replenishing of carbonates and clay;(6) Vanishing of warpic stratification and improvement of soil physical preperties.The paper also summarizes the characteristics of the diagostic horizon of warpic soils (warpic epipedon); and pointed out the position of warpic soils in the classification system.As anthropic soils,the warpic soils are much defferent from the arid soils,the udic soils, the Inceptisols and the Entisols.At last,the paper divides the warpic soils into eig subtypes:commonic,hydragric,Baltic,udic,fimic and frigic warpic soils,xnd puts forward the indexes to the warpic soils.

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史成华,龚子同.我国灌淤土的形成和分类[J].土壤学报,1995,32(4):437-448. Shi Chenghua, Gong Zitong. FORMATION AND CLASSIFICATION OF WARPlC SOILS IN CHINA[J]. Acta Pedologica Sinica,1995,32(4):437-448.

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  • 在线发布日期: 2013-02-25
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