首页   按字顺浏览 期刊浏览 卷期浏览 LOESS REJUVENATION EFFECTS ON INTENSELY WEATHERED SOILS OF SOUTH‐CENTRAL KENTUCKY
LOESS REJUVENATION EFFECTS ON INTENSELY WEATHERED SOILS OF SOUTH‐CENTRAL KENTUCKY

 

作者: D. MUBIRU,   A. KARATHANASIS,  

 

期刊: Soil Science  (OVID Available online 1994)
卷期: Volume 157, issue 4  

页码: 244-252

 

ISSN:0038-075X

 

年代: 1994

 

出版商: OVID

 

数据来源: OVID

 

摘要:

Studies were conducted to investigate loess rejuvenation effects on the morphological, physicochemical and mineralogical characteristics of some intensely weathered soils in south-central Kentucky without evident lithological discontinuities. Soils were classified as clayey, mixed, thermic Typic Paleudults; Hapludults; Haplohumults; and fine, mixed, thermic Typic Paleudalfs. They showed higher than expected clay activities, base saturations, and weatherable minerals in the upper sola, apparently caused by the influence of variable eolian depositions. Because a major part of the control section is within the upper solum, the soils lack kandic horizons or kaolinitic mineralogy but have lower sola with relatively low clay activities, large amounts of kaolinite and free Fe oxides, and lower concentrations of weatherable minerals. In spite of the apparent advanced past development of these soils, their classification contradicts the nature and properties of the rejuvenated upper solum materials

 

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