Snowpack chemistry during snow accumulation and melt in mature subalpine forest and regenerating clear-cut in the southern interior of B.C.

abies lasiocarpa british columbia canopy chemical composition chlorides chlorure climat de montagne cloruros colombie britannique composition chimique couche de neige couvert cubierta de copas cubierta de nieve highlands mountain climate neige nieve nitrate nitrates nitratos picea engelmannii pinus contorta snow snow cover sodio sodium subalpine forests sulfate sulfatos sulphates thawing