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

Regions: Qikiqtaaluk Region, Nunavut

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

Principal Investigator: Henry, Greg H R (4)
Licence Number: 12695
Organization: University of British Columbia
Licenced Year(s): 1994 1993 1992
Issued: Jan 01, 1994
Project Team: M. Jones, J. Johnstone, M. Deforge, G. Jones, M. Boulrice, P. Lange, K. Trainor, T. Smestad

Objective(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.

Project Description: 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).