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Surface Water StorageCapacity of TwentyTree Species inDavis, California Qingfu XiaoE. Gregory McPherson2015 год

Surface Water Storage Capacity of Twenty Tree Species in Davis, California
статья из журнала

Страница публикацииПубликация в OpenAlex
Аннотация: 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, is the most important variable influencing rainfall interception processes. Surface storage capacity is known to vary widely among tree species, but it is little studied. This research measured surface storage capacities of 20 urban tree species in a rainfall simulator. The measurement system included a rainfall simulator, digital balance, digital camera, and computer. Eight samples were randomly collected from each tree species. Twelve rainfall intensities (3.5–139.5 mm h−1) were simulated. Leaf-on and leaf-off simulations were conducted for deciduous species. Stem and foliar surface areas were estimated using an image analysis method. Results indicated that surface storage capacities varied threefold among tree species, 0.59 mm for crape myrtle (Lagerstroemia indica L.) and 1.81 mm for blue spruce (Picea pungens Engelm.). The mean value across all species was 0.86 mm (0.11 mm SD). To illustrate application of the storage values, interception was simulated and compared across species for a 40-yr period with different rainfall intensities and durations. By quantifying the potential for different tree species to intercept rainfall under a variety of meteorological conditions, this study provides new knowledge that is fundamental to validating the cost-effectiveness of urban forestry as a green infrastructure strategy and designing functional plantings. Core Ideas Quantitative analysis of surface water storage capacities for 20 urban tree species. Surface water storage capacities varied threefold among tree species. Conifers had the highest storage capacities and simulated interception rates.
Год издания: 2015
Авторы: Qingfu Xiao, E. Gregory McPherson
Издательство: Wiley
Источник: Journal of Environmental Quality
Ключевые слова: Plant Water Relations and Carbon Dynamics, Hydrology and Watershed Management Studies, Hydrology and Sediment Transport Processes
Другие ссылки: Journal of Environmental Quality (HTML)
PubMed (HTML)