Browsing Electronic Theses and Dissertations by Committee Member "Wang, Jian"
Now showing items 1-16 of 16
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Carbon and nitrogen dynamics associated with post-wildfire stand development of boreal mixed conifer ecosystems : application of data in model validation and refinement
(2006)Study site : Northwestern Ontario -
Carbon dynamics of boreal mixedwoods in central Canada
(2009)Large amount of carbon (C) stored in boreal forest ecosystems plays an important role in the global carbon cycle. Forest ecosystem C is stored in four major pools: live vegetation (above-and below ground), dead woody ... -
Carbon storage dynamics and tree growth response to species diversity in boreal forests
(2018)The boreal forest plays a critical role in regulating the global carbon (C) cycle. Both wildfire and harvesting affect ecosystem C. However, the long-term recovery of forest C storage with a diverse range of overstory ... -
Climate change-associated temporal increase of tree mortality and its consequences in central and western Canadian boreal forests
(2014-01-22)Tree mortality influences forest structure, composition and ecosystem functions. To assess how recent climate changes affected tree mortality, observational studies conducted in old-growth forests have shown that tree ... -
Comparing the spatial pattern of fire and harvest disturbance in boreal Ontario watersheds
(2016)Fire and harvest are both major sources of disturbance in Ontario’s boreal forest. They are largely responsible for successional patterns in forest vegetation, and influence regimes of hydrologic change in boreal streams, ... -
Ecophysiological responses of black spruce (Picea mariana) seedlings to nutrient supply, N-P-K ratio and photoperiod at current and elevated CO2 concentration
(2012-11-10)The relationship between plant growth and nitrogen supply is frequently used in growth models to predict growth performance under global climate change scenarios. However, the relationship may be changed under elevated ... -
Ecophysiological responses of white birch seedlings to soil temperature and phosphorus supply under current and doubled carbon dioxide concentration
(2009)To investigate the responses of some physiological and morphological traits to different soil temperature and phosphorus supply under current and doubled carbon dioxide concentration ([CO2]), white birch (Betula papyrifera ... -
Past and future impacts of climate change on boreal forest timber supply
(2018)The boreal forest is home to a thriving forest industry which requires stable, long term timber to remain viable. Anthropogenic climate change, caused by the release of greenhouse gasses, is occurring rapidly in northern ... -
Patterns and mechanisms of epiphytic macrolichen and abundance, diversity and composition in boreal forest
(2014-12-11)Epiphytes are important components of the forest ecosystem, but the mechanisms that control epiphyte diversity are not clear. Epiphytes are sensitive to disturbance, but their responses to stand-replacing fire are poorly ... -
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 ... -
Plant abundance, diversity, and composition following reclamation in Alberta's oil sands
(2014-12-18)The Alberta oil sands have caused an economic boom in the Canadian economy in recent years. Identifying the best strategy for vegetation recovery after oil sands extraction is critical to restoring the biodiversity and ... -
Post disturbance dynamics of aspen mixed-woods : a comparison among fire, logging, and budworm outbreak
(2002)Seventy-one aspen (Populus tremuloidies Michx.) mixedwood stands disturbed in the 1980’s were sampled in southeastern Manitoba, Canada to examine the response of arboreal and understory communities to natural and ... -
Regeneration dynamics after fire and clear cutting in boreal mixedwoods
(2009)Emulation of natural disturbance processes and their effects is important to maintain the structure and composition of managed forests. In boreal mixed forests, clearcutting has been considered as management practice ... -
Stand structural dynamics of boreal conifer, mixedwood, and broadleaf fire- and clearcut logging-origin stands in central Canada
(2006)Stand structure has been linked to forest regeneration, nutrient cycling, wildlife habitat, biodiversity, and climate regulation. A review and synthesis of literature indicated that boreal forest stand structure is ... -
Wildfire dynamics of mixedwood boreal forests in central Canada
(2009)Natural disturbances play a key role to forest regeneration, nutrient cycling, wildlife habitat, biodiversity, and climate regulation. A synthesis of literature indicated that boreal forest stand structure is largely a ...
