打印

作者

来源

URBAN FORESTRY & URBAN GREENING,Vol.34,P.141-146

语言

英文

关键字

Acer rubrum; Gloomy scale; Red maple; Street trees; Tree condition; Urban heat island; STREET TREES; CARBON STORAGE; UNITED-STATES; FOREST; GROWTH; TEMPERATURE; SURVIVAL; PESTS; HEAT

作者单位

[Just, Michael G.; Frank, Steven D.] North Carolina State Univ, Dept Entomol & Plant Pathol, Raleigh, NC 27695 USA. [Dale, Adam G.] Univ Florida, Entomol & Nematol Dept, Gainesville, FL 32611 USA. Just, MG (reprint author), NC State Univ, Dept Entomol & Plant Pathol, 100 Derieux PL,2301 Gardner Hall, Raleigh, NC 27695 USA. E-Mail: michael_just@ncsu.ed; sdfrank@ncsu.edu; agdale@ufl.edu

摘要

Impervious surfaces are a ubiquitous urban feature that increase temperature and tree drought stress and are a demonstrated indicator of Acer rubrum L. tree condition and insect pest abundance. We examined the relationship between A. rubrum condition, impervious surface cover, and Melanaspis tenebricosa (Comstock) abundance, a primary herbivore of urban A. rubrum, in eight cities across the southern distribution of A. rubrum. We predicted that the effects of warming, due to impervious surface, would be greater in warmer southern cities than in cooler northern cities. We found that impervious surface was a robust predictor of tree condition, but this effect was not significantly affected by background temperature. Melanaspis tenebricosa abundance was a function of impervious surface and background temperature, with greatest abundances occurring at mid latitudes. Based on these relationships, we developed impervious surface thresholds to inform site selection for A. rubrum throughout the southeastern USA. Planting criteria based on habitat characteristics should maximize urban tree longevity and services provided.