SOIL-EROSION CLASS AND LANDSCAPE POSITION IN THE NORTH-CAROLINA PIEDMONT

被引：60

作者：

DANIELS, RB ^{[1
]}

GILLIAM, JW ^{[1
]}

CASSEL, DK ^{[1
]}

NELSON, LA ^{[1
]}

机构：

[1] N CAROLINA STATE UNIV,DEPT STAT,RALEIGH,NC 27695

来源：

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1985年 / 49卷 / 04期

关键词：

CLAY - Monitoring - MAPS AND MAPPING - Applications;

D O I：

10.2136/sssaj1985.03615995004900040040x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Soil map units in the North Carolina Piedmont are a complex of interfluves, valley slopes and foot slopes. Specific landscape positions are commonly too small to delineate on 1:15 480 or larger scale maps and most contain areas with varying degrees of erosion that cannot be separated at common map scales. Munsell color hues are a good indicator of clay content of the Ap horizon and can be used as a guide to erosion class. Within Cecil map units the clay content of the Ap horizons increases from about 10 to 30% as the Munsell hue shifts from 10YR to 5YR. Within Georgeville map units the clay content of the Ap horizons increase from about 30 to greater than 40% as the Munsell hues change from 7. 5YR to 2. 5YR. The distribution of erosion classes within a soil map unit delineation varies with landscape position.

引用

页码：991 / 995

页数：5

共 13 条

[1] SLOPE POSITION AND GRAIN-YIELD OF SOFT WHITE WINTER-WHEAT [J].