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observed effects host:heronpublishing.com

Listing 1 - 3 from 3 for observed effects

Physiographic, stand, and environmental effects on individual tree growth and growth efficiency in subalpine forests
... 1986 Heron Publishing—Victoria, Canada [ PDF ] [ Return to Contents ] Physiographic, stand, and environmental effects on individual tree growth and growth efficiency in subalpine forests Merrill R. ... and suppressed and overtopped trees had growth efficiencies equal to the highest efficiencies observed for dominant/codominant or intermediate trees. Lodgepole pine growth was most responsive to ...
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Experimental approaches to the study of the effects of nutrients and water on carbon assimilation by trees
... Australia / Summary This paper outlines the experiemental approaches needed to provide detailed information about the effects of nutrients and water on carbon assimilation, and hence growth of trees. Data from ... status and nutrient mineralization rates in the soil provide the information needed to explain observed differences in growth and to refine the models underlying the research. ISSN 0829-318X ...
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Pollution-induced injury in North American forests: facts and suspicions
... / Summary Toxic gases are the only airborne chemicals that have been demonstrated to cause detrimental effects on forest trees in North America. Ozone is the only regionally dispersed pollutant known ... increased mortality of sensitive tree species over a wide geographic range. All of these effects have been observed in eastern white pine (Pinus strobus L.) throughout its natural range, in some ...
heronpublishing.com