Variation in urban forest productivity and response to extreme drought across a large metropolitan region

被引：0
作者：
Margaret B. Bialecki
Robert T. Fahey
Bryant Scharenbroch
机构：
[1] University of Minnesota,Department of Geography, Environment, and Society
[2] University of Connecticut,Department of Natural Resources and the Environment & Center for Environmental Science and Engineering
[3] University of Wisconsin-Stevens Point,College of Natural Resources
[4] Center for Tree Science,undefined
[5] The Morton Arboretum,undefined
来源：
Urban Ecosystems | 2018年 / 21卷
关键词：
Urban forest; Land use; Drought; Resilience; Climate; Tree growth;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The growth and survival of urban trees and maintenance of urban forest canopy are important considerations in adaptation of urban regions to climate change, especially in relation to increasing frequency of extreme climatic events such as drought. However, urban forest growth and drought response may vary considerably within large urban landscapes across gradients in land use, urbanization, forest composition and structure, and environmental factors. We quantified urban forest growth and resilience and resistance to extreme drought in the greater Chicago metropolitan region based on patterns of annual basal area production from increment core analysis. We evaluated variation in growth and drought response in relation to a broad urban to rural gradient, land-use categories, local-scale environmental predictors, and forest community characteristics. Urban forest growth varied greatly among land-use classes and major genera. Plot-level variation in productivity was predicted most strongly (R2 = 0.53) by total plot-level basal area, canopy height, species composition, soil and ground-cover characteristics, and position within the urban-rural gradient. Urban forest growth was strongly related to regional meteorological drought. In periods of extreme drought conditions growth declined in the year of the drought (i.e., was not resistant to drought effects), but was highly resilient to drought in the subsequent 5 year period. Drought response did not vary consistently across land-use classes or among major genera, and site or community characteristics had little explanatory power in predicting drought response. Improved understanding of factors driving variation in urban forest growth and drought response could help inform adaptation-focused urban forest management strategies.
引用
收藏
页码：157 / 169
页数：12
相关论文
共 159 条
  • [21] Schwarz K(2015)Data and methods comparing social structure and vegetation structure of urban neighborhoods in Baltimore, Maryland Remote Sens Environ 167 168-69
  • [22] Buckley GL(2017)An ecology of prestige in New York City: Examining the relationships among population density, socio-economic status, group identity, and residential canopy cover Urban Ecosystems 20 497-85
  • [23] Bowles M(2002)Detection of gradients of forest composition in an urban area using imaging spectroscopy J Arboric 28 59-124
  • [24] Jones M(2001)Mapping forest structure and uncertainty in an urban area using leaf-off lidar data Urban Ecosystems 5 71-181
  • [25] McBride J(2000)Characteristics of trees according to community population level and by land use in the US Midwest Urban Ecosystems 4 105-122
  • [26] Bell T(1998)Factors related to tree growth across urban-rural gradients in the Midwest, USA Urban Ecosystems 2 171-145
  • [27] Dunn C(2008)Urban forest cover of the Chicago region and its relation to household density and income Clim Chang 86 105-191
  • [28] Brandt L(1992)Physical and chemical properties of a Hong Kong roadside soil in relation to urban tree growth J Environ Hortic 10 139-39
  • [29] Lewis AD(2015)Interdependencies of urban climate change impacts and adaptation strategies: a case study of Metropolitan Boston USA Landsc Urban Plan 143 183-388
  • [30] Fahey R(1992)Microclimates and Tree Growth in Three Urban Spaces Arboricultural Journal 16 25-233
12345678910