Accession Number:

AD0692523

Title:

SWAMP VEGETATION - AN INDICATOR FOR NON-FROZEN AREAS IN THE NORTHERN TAIGA OF WESTERN SIBERIA,

Descriptive Note:

Corporate Author:

ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER WASHINGTON D C

Personal Author(s):

Report Date:

1969-08-09

Pagination or Media Count:

14.0

Abstract:

In the northern taiga of Western Siberia, swamp vegetation can be used to determine the location of frozen and non-frozen areas. The type of vegetation is determined by 1 the presence or absence of water on the surface of swamps 2 the presence or absence a permanently-frozen layer of soil. Surface water in the swamps is a critical factor in thaw, freeze, and temperature of the soil. A number of factors cause variations in the depth and time of thawing and freezing, keeping the swamps in a state of change. The surface levels of the swamps change, causing variation in the amount of surface water, the depth of thaw and freeze, and finally, the vegetation. Author

Subject Categories:

  • Biology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE