CARBON-DIOXIDE DYNAMICS IN ACID FOREST SOILS IN SHENANDOAH NATIONAL-PARK, VIRGINIA

被引：65

作者：

CASTELLE, AJ ^{[1
]}

GALLOWAY, JN ^{[1
]}

机构：

[1] UNIV VIRGINIA,DEPT ENVIRONM SCI,CHARLOTTESVILLE,VA 22903

来源：

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1990年 / 54卷 / 01期

关键词：

D O I：

10.2136/sssaj1990.03615995005400010040x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Two soils - one comprised of alluvial infill on a valley bottom, the other covering a steep hillslope - were monitored for CO2 levels and soil temperature and moisture. Carbon dioxide concentrations varied from atmospheric levels during the winter to nearly two orders of magnitude higher in late summer. There were strong correlations of CO2 with soil air temperature, but correlations with soil moisture content were weak. The strong seasonal fluctuations of CO2 may explain variations in stream-water alkalinity and base-cation concentrations. -from Authors

引用

页码：252 / 257

页数：6

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