Responses of Circumpolar Plant Species and Their Communities To Simulated Climate Change

Régions: Qikiqtaaluk Region, Nunavut

étiquettes: physical sciences, soil, vegetation, climate change, botany, deglaciation, decomposition

chercheur principal: Henry, Greg H R (4)
Nᵒ de permis: 12695
Organisation: University of British Columbia
Année(s) de permis: 1994 1993 1992
Délivré: janv. 01, 1994
Équipe de projet: M. Jones, J. Johnstone, M. Deforge, G. Jones, M. Boulrice, P. Lange, K. Trainor, T. Smestad

Objectif(s): To determine the phenological growth and ecophysiological response of circumpolar plant species to simulations of predicted climate change scenarios; to examine the effect of warming on decomposition and mineralization in the soil and on herbivory by insects; and to begin research on revegetation and succession after recent deglaciation and human disturbance in the High Arctic.

Description du projet: Researchers have established field experiments in 5 plant communities to simulate climate change scenarios (i) no change; (ii) warmer, longer seasons with earlier snow melt; (iii) warmer growing seasons with later snow melt. The temperatures are increased in small open-topped greenhouses and the date of snow melt is changed by adding or removing snow. Tagged plants of the major vascular plant species are measured for timing of life cycle events (ie: flowering).