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Medientyp:
E-Artikel
Titel:
Revegetation of an Arctic Disturbed Site by Native Tundra Species
Beteiligte:
Chapin,, F. Stuart;
Chapin, Melissa C.
Erschienen:
Blackwell Science Publications, 1980
Erschienen in:Journal of Applied Ecology
Sprache:
Englisch
ISSN:
1365-2664;
0021-8901
Entstehung:
Anmerkungen:
Beschreibung:
<p>(1) Succession on an organic tundra soil in interior Alaska was monitored for ten growing seasons following removal of vegetation. (2) Exotic grasses sown following disturbance became established in the first growing season, decreased in density after 3 yr, and were virtually eliminated after 5 yr. Fertilization did not affect initial density or long-term survival of exotic species, but did increase shoot density of native species 3 yr following disturbance. (3) Native sedges established on the disturbed site in 5-10 yr, producing an above-ground biomass equal to that in undisturbed tundra. (4) A procedure is outlined whereby the growth and reproduction of Eriophorum vaginatum can be manipulated by fertilization to revegetate disturbances using plants in adjacent undisturbed tundra (rather than harvested seed) as the seed source.</p>