Browsing Scholarly Works, Department of Forest Resources and Environmental Conservation by Title
Now showing items 1-20 of 304
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Above- and Below-Ground Carbon Sequestration in Shelterbelt Trees in Canada: A Review
(MDPI, 2019-10-19)Shelterbelts have been planted around the world for many reasons. Recently, due to increasing awareness of climate change risks, shelterbelt agroforestry systems have received special attention because of the environmental ... -
Accuracy of Visible and Ultraviolet Light for Estimating Live Root Proportions with Minirhizotrons
(Ecological Society of America, 1995-10) -
Advancing lake and reservoir water quality management with near-term, iterative ecological forecasting
(2021-01-18)Near-term, iterative ecological forecasts with quantified uncertainty have great potential for improving lake and reservoir management. For example, if managers received a forecast indicating a high likelihood of impending ... -
Alternate Trait-Based Leaf Respiration Schemes Evaluated at Ecosystem-Scale Through Carbon Optimization Modeling and Canopy Property Data
(American Geophysical Union, 2019-12-25)Leaf maintenance respiration (Rleaf,m) is a major but poorly understood component of the terrestrial carbon cycle (C). Earth systems models (ESMs) use simple sub-models relating Rleaf,m to leaf traits, applied at canopy ... -
Analysis of a lidar voxel-derived vertical profile at the plot and individual tree scales for the estimation of forest canopy layer characteristics
(2016)The goal of the current study was to develop methods of estimating the height of vertical components within plantation coniferous forest using airborne discrete multiple return lidar. In the summer of 2008, airborne lidar ... -
Analyzing Trade-Offs, Synergies, and Drivers among Timber Production, Carbon Sequestration, and Water Yield in Pinus elliotii Forests in Southeastern USA
(MDPI, 2014-06-20)Managing Pinus elliotii forests for timber production and/or carbon sequestration is a common management objective, but can negatively affect water yield due to high losses from evapotranspiration. Thus, understanding ... -
Approximating Prediction Uncertainty for Random Forest Regression Models
(2016-03)Machine learning approaches such as random forest have increased for the spatial modeling and mapping of continuous variables. Random forest is a non-parametric ensemble approach, and unlike traditional regression approaches ... -
Assessing Biotic and Abiotic Effects on Biodiversity Index Using Machine Learning
(MDPI, 2021-04-10)Forest ecosystems play multiple important roles in meeting the habitat needs of different organisms and providing a variety of services to humans. Biodiversity is one of the structural features in dynamic and complex forest ... -
Assessing methods for comparing species diversity from disparate data sources: the case of urban and peri-urban forests
(Ecological Society of America, 2018-10)Multi-scale forest inventory and monitoring data are increasingly being used in studies assessing forest diversity, structure, disturbance, and carbon dynamics. Also, local-level urban forest inventories are providing plot ... -
Assessing patterns of oak regeneration and C storage in relation to restoration-focused management, historical land use, and potential trade-offs
(2015-01-29)Restoration of composition, structure, and function in oak dominated ecosystems is the focus of management in temperate forests around the world. Land managers focused on oak ecosystem restoration are challenged by the ... -
Assessing the transferability of statistical predictive models for leaf area index between two airborne discrete return LiDAR sensor designs within multiple intensely managed Loblolly pine forest locations in the south-eastern USA
(2016-04)Leaf area is an important forest structural variable which serves as the primary means of mass and energy exchange within vegetated ecosystems. The objective of the current study was to determine if leaf area index (LAI) ... -
Assessment of Land Cover, Tree Canopy, and Plantable Space on Virginia Tech Campus
(2020-05-20)To better understand the extent, distribution, and value of Virginia Tech’s tree canopy cover, students in a senior-level urban forestry course in the Department of Forest Resources and Environmental Conservation conducted ... -
Automated Mapping of Typical Cropland Strips in the North China Plain Using Small Unmanned Aircraft Systems (sUAS) Photogrammetry
(MDPI, 2019-10-10)Accurate mapping of agricultural fields is needed for many purposes, including irrigation decisions and cadastral management. This paper is concerned with the automated mapping of cropland strips that are common in the ... -
Auxiliary information resolution effects on small area estimation in plantation forest inventory
(2020-10)In forest inventory, traditional ground-based resource assessments are often expensive and time-consuming forcing managers to reduce sample sizes to meet budgetary and logistical constraints. Small area estimation (SAE) ... -
Beyond Finding Change: multitemporal Landsat for forest monitoring and management
(2017-07)Take homes- Tobler’s Law still in effect with time series – spatial autocorrelation in temporal coherence can help in both preprocessing and estimation
- Continual process improvement in extant algorithms ...
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Beyond neonicotinoids - Wild pollinators are exposed to a range of pesticides while foraging in agroecosystems
(2020-11-10)Pesticide exposure is a growing global concern for pollinator conservation. While most current pesticide studies have specifically focused on the impacts of neonicotinoid insecticides toward honeybees and some native bee ... -
Beyond Static Benchmarking: Using Experimental Manipulations to Evaluate Land Model Assumptions
(American Geophysical Union, 2019-10-28)Land models are often used to simulate terrestrial responses to future environmental changes, but these models are not commonly evaluated with data from experimental manipulations. Results from experimental manipulations ... -
Biodiversity conservation in the era of biofuels: risks and opportunities
(Ecological Society of America, 2011-04)Growing demand for alternative energy sources has contributed to increased biofuel production, but the effects on biodiversity of land-use change to biofuel crops remain unclear. Using a meta-analysis for crops being used ... -
Biomass and nutrient mass of Acacia dealbata and Eucalyptus globulus bioenergy plantations
(2017-02)We quantified biomass and nutrient accumulation of Acacia dealbata Link and Eucalyptus globulus Labill. planted at stem densities of 5000 and 15000 ha(-1) in a bioenergy plantation in Chile. We tested the hypotheses that ...
