Browsing by Subject "Photosynthesis"
Now showing items 1-10 of 10
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Ecophysiological responses of four boreal tree species to soil nitrogen supply
(2000)The ecophysiological responses of four boreal tree species, trembling aspen (Populus tremuloides Michx.), black spruce (Picea mariana (Mill.) B.S.P.), white spruce (Picea glauca (Moench) Voss), and jack pine (Pinus ... -
Effects of elevated carbon dioxide concentration and light on biomass morphology and physiology of black spruce and white spruce seedlings
(2008)Carbon dioxide concentration and light interactions influence competition among boreal tree species, though little is known about the exact effects. The interactive effects of [CO 2 ] and light on growth, biomass production, ... -
The effects of nitrogen Rate On seedlings growth in Picea Mariana
(2017)Nitrogen (N) is critically important for plant growth and development. The objective of this thesis is to examine how different rates of Nitrogen affect the seedling growth in black spruce (Picea mariana Mill.). This ... -
Effects of nitrogen supply on the physiological and morphological responses to elevated [CO2] in yellow birch (Betula alleghaniensis Britt.)
(2023)Ongoing climate changes can substantially impact soil nitrogen availability through its effects on other environmental conditions such as temperature, precipitation, and the frequency and intensity of extreme whether ... -
Effects of soil temperature on a coupled photosynthesis-stomatal conductance model for four boreal tree species
(2000)In order to examine the effects of soil temperature on a coupled photosynthesis-stomatal conductance model, seedlings of trembling aspen (Populus tremuloides Michx), jack pine (Pinsu banksiana Lamb. ), black spruce (Picea ... -
Effects of water availability, longer photoperiod, and elevated [CO2] on the potential of the northward migration in trembling aspen (populus tremuloides michx.)
(2019)Based on climate envelope models, boreal tree species may migrate to higher latitudes (approximately 10˚N toward the north) in response to rapid climate changes by the end of this century. Multiple factors will likely ... -
Influence of soil temperature on ecophysiological traits of four boreal tree species
(1999)A new soil temperature control system was developed for greenhouse experiments. The system controlled soil temperature by circulating temperature-controlled water around seedling containers. The system was tested for 5, ... -
Phenology, growth and physiological responses to photoperiod and elevated [CO2] of boreal white birch (Betula papyrifera Marsh): implications to climate change-induced northward migration
(2019)With the increase in average global temperature due to rising atmospheric carbon dioxide concentration ([CO2]), rapid shifts of climate envelopes are expected to lead to norward migration for boreal tree species. As a ... -
Physiological and morphological responses of mountain maple (acer spicatum l.) seedlings to light under different carbon dioxide concentrations, soil temperature and soil moisture regimes
(2013-02-01)Determining the response of mountain maple (Acer spicatum L.) to increases in light is confounded by interaction with other environmental factors. Rising atmospheric carbon dioxide concentrations ([CO2]) and the accompanying ... -
Seasonal changes in gas exchange and foliar nitrogen of three conifer species growing on an Ontario boreal mixedwood site
(2003)Jack pine, black spruce and white spruce are three vital species of the Ontario boreal mixedwood forest. The purpose of this study is to compare and contrast the ecophysiological characteristics of each species and to ...