Root surface area
Tundra dwarf shrubs
Springer Online Journal Archives 1860-2000
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Summary Individual shoots of the shrubsLedum palustre L.,Vaccinium uliginosum L., andBetula nana L. were severed from their parent plants beneath the moss surface in an Alaskan tussock tundra. These shoots remained one year in their original position in peat moss cushions without further disturbance. After this period fine root dry weight, fine root surface area, leaf dry weight, and leaf area of these shoots were measured and compared with equivalent values from unsevered control shoots. Dry weight ratios of fine roots/leaves were similar in cut and control shoots, with the exception ofB. nana. The fine root surface/leaf area ratios showed significant differences between control and cut shoots except inL. palustre. Without tedious rootlet extractions it should be possible to estimate fine root surface area from leaf area ofL. palustre.
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