The effect of elevated CO2 and temperature: effect on soil parameters and plants. A description of the open top chambers at the Norwegian Forest Research Institute, 1992-1995

betula pendula carbon dioxide chambre de croissance changement climatique climatic change clone clones dioxyde de carbone environmental factors facteur du milieu factores ambientales fitotrones forest ecology growth chambers lysimeters noruega norway picea abies podzol podzoles podzols simulation sotobosque temperatura temperature undergrowth