A5110527703- Urban Green Space and Health
- Forest ecology and management
- Urban Heat Island Mitigation
- Plant responses to elevated CO2
- Land Use and Ecosystem Services
- Seedling growth and survival studies
- Ecology and Vegetation Dynamics Studies
- Plant Water Relations and Carbon Dynamics
- Leaf Properties and Growth Measurement
- Remote Sensing and LiDAR Applications
- Building Energy and Comfort Optimization
- Remote Sensing in Agriculture
- Economic and Environmental Valuation
- Urban Stormwater Management Solutions
- Plant Pathogens and Fungal Diseases
- Fire effects on ecosystems
- Forest Management and Policy
- Noise Effects and Management
- Smart Materials for Construction
- Lichen and fungal ecology
- Greenhouse Technology and Climate Control
- Tree-ring climate responses
- Atmospheric chemistry and aerosols
- Forest Insect Ecology and Management
- Vehicle emissions and performance
Pacific Southwest Research Station
2010-2020
US Forest Service
2000-2020
United States Department of Agriculture
2015
Morton Arboretum
2013
University of California, Davis
1997-2010
Forest Research
2000-2009
Community Living
2009
University of the Western Cape
2002
California Department of Forestry and Fire Protection
2000
University of Arkansas at Monticello
1995
Many environmental challenges are exacerbated within the urban landscape, such as stormwater runoff and flood risk, chemical particulate pollution of air, soil water, heat island, summer waves. Urban trees, forest a whole, can be managed to have an impact on heat, carbon cycles. However, there is increasing need for empirical evidence magnitude impacts, both beneficial adverse, that trees provide role climatic region built landscape circumstance play in modifying those impacts. This special...
With effective planning and management, urban trees forests will provide a wide range of important benefits to urbanites. These include more pleasant, healthful, comfortable environment live, work, play in, savings in the costs providing services, substantial improvements individual community wellbeing. Urban forestry plans should begin with consideration contribution that can make people's needs. Planning management efforts focus on how forest best meet those Past have not been as they...
Abstract Approximately 75–80% of the population North America currently lives in urban areas as defined by national census bureaus, and urbanization is continuing to increase. Future trajectories fossil fuel emissions are associated with a high degree uncertainty; however, if activities residents rate land conversion can be captured systems models, plausible scenarios from major cities may generated. Integrated use transportation models that simulate energy traffic‐related already place many...
A rainfall interception measuring system was developed and tested for open-grown trees. The includes direct measurements of gross precipitation, throughfall stemflow, as well continuous collection micrometeorological data. data were sampled every second collected at 30-s time steps using pressure transducers monitoring water depth in containers coupled to Campbell CR10 dataloggers. on a 9-year-old broadleaf deciduous tree (pear, Pyrus calleryana 'Bradford') an 8-year-old evergreen (cork oak,...
A one-dimensional mass and energy balance model was developed to simulate rainfall interception in Sacramento County, California. The describes tree processes: gross precipitation, leaf drip, stem flow, evaporation. Kriging used extend existing meteorological point data over the region. Regional land use/ cover canopy were parameterized with obtained by remote sensing ground sampling. Annual 1.1% for entire county 11.1% of precipitation falling on urban forest canopy. Summer at level 36% an...
Urban forestry is an important green infrastructure strategy because healthy trees can intercept rainfall, reducing stormwater runoff and pollutant loading. Surface saturation storage capacity, defined as the thin film of water that must wet tree surfaces before flow begins, most variable influencing rainfall interception processes. capacity known to vary widely among species, but it little studied. This research measured surface capacities 20 urban species in a simulator. The measurement...
A three‐dimensional physically based stochastic model was developed to describe canopy rainfall interception processes at desired spatial and temporal resolutions. Such development is important understand these because forest may exceed 59% of annual precipitation in old growth trees. The describes the process from a single leaf, branch segment, then up individual tree level. It takes into account rainfall, meteorology, architecture factors as explicit variables. Leaf stem surface roughness,...
Sacramento County's 6 million trees store 8 tons of CO2 (31 t/ha), and annually sequester 238,000 t (0.92 t/ha). Air-conditioning (157 GWh) space-heating (145 TJ) savings from the urban forest further reduce emissions by 75,600 (0.29 These avoided are only 32% amount sequestered, due to a clean, hydroelectric energy supply. Annual CO,, release associated with tree maintenance is estimated at 9,400 (0.04 or 3% sequestered avoided. In net, removes approximately 304,000 (1.2 t/ha) each year, an...
Although the modeling of energy-use reduction, air pollution uptake, rainfall interception, and microclimate modification associated with urban trees depends on data relating diameter at breast height (dbh), crown height, diameter, leaf area to tree age or dbh, scant information is available for common municipal species. In this study, width, were measured 12 street species in San Joaquin Valley city Modesto, California, U.S. The randomly sampled planted from 2 89 years ago. Using dbh as...
This study demonstrates an approach to quantify the structure, benefits, and costs of street tree populations in resource-limited communities without inventories. Using city Davis, California, U.S., as a model, existing data on benefits municipal trees were applied results sample inventory city's public private trees. Results indicate that Davis maintained nearly 24,000 provided $1.2 million net annual environmental property value with benefitcost ratio 3.8:1. The can improve long-term...