Doctoral Dissertation Research: Connecting Pixels to People: Management Agents and Socioecological Determinants of Changes to Street Tree Distributions

博士论文研究：将像素与人联系起来：街道树分布变化的管理因素和社会生态决定因素

• 批准号: 1029419
• 负责人: Jayajit Chakraborty
• 金额: $ 1.09万
• 依托单位: University of South Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1029419&HistoricalAwards=false
• 关键词: Doctoral; Dissertation; Research; Connecting; Pixels

Street trees exist within the blurred private-public space of the right-of-way and represent a highly managed landscape feature of urban socioecological systems. Although they are an important part of the urban forest landscape and provide valuable ecosystem services, the biophysical characteristics of the right-of-way and actions of human and non-human management agents have resulted in an uneven spatial distribution of street trees within many cities. There remains a knowledge gap in our understanding of how the social, built and bioecological interactions in the public right-of-way impact urban environmental change. Doctoral student Shawn Landry under the guidance of Professor Jayajit Chakraborty in the Department of Geography at the University of South Florida will investigate the socioecological determinants of street tree distributions in urban residential neighborhoods in order to understand how household decisions and multi-scalar management agents shape urban forest change and the environment within the public-private space of the right-of-way. The research addresses three primary questions: Are recent changes to the spatial distribution of street trees explained by socio-demographic household and neighborhood characteristics? Which management agents are the strongest predictors of recent changes to street tree distributions and how does the contribution of these agents vary in relationship to socioecological patterns within a city? To what extent are household street tree management decisions related to the built and bioecological material characteristics of the public right-of-way? Multi-method empirical analyses will be conducted in a study area in and around Tampa, Florida, that includes single-family residential areas characteristic of a typical Sunbelt city. Urban remote sensing and land cover change analysis, combined with geospatial analytical techniques will be used to examine broader socio-demographic patterns associated with recent changes to street tree distributions. Household survey and semi-structured interview techniques combined with assessment of biophysical growing conditions will be used to examine the relative contribution to street tree distributions by specific agents and the socio-spatial determinants of household public right-of-way landscape decisions. This study will extend a research framework designed to capture the complexity of human ecosystems to reveal poorly understood aspects of urban forest change, such as how historical legacies affect adaptive management options associated with the right-of-way. This research project synthesizes theory and methods from urban forestry, spatial sciences, environmental equity, and urban ecology to contribute new insights on environmental change associated with spaces characterized by complex social, built, and bioecological interactions. The findings from this study will inform and guide urban environmental management and policy decisions associated with the public-private space of the right-of-way. Research results will be presented in formats useful to local and national urban forest practitioners and through outreach efforts such as presentations and symposia with residents, neighborhood associations, elected officials and public agencies in the local municipalities. Through these channels, this project will increase knowledge and understanding of factors influencing urban forest sustainability and broadly extend societal impacts beyond the academic community.

行道树存在于模糊的私人-公共空间的道路权，并代表了高度管理的城市社会生态系统的景观特征。虽然它们是城市森林景观的重要组成部分，并提供宝贵的生态系统服务，但道路权的生物物理特性以及人类和非人类管理机构的行动，导致许多城市内行道树的空间分布不均衡。在我们对公共道路中的社会、建筑和生物生态相互作用如何影响城市环境变化的理解方面，仍然存在知识差距。博士生Shawn Landry在南佛罗里达大学地理系教授Jayajit Chakraborty的指导下，将调查城市居民区行道树分布的社会生态决定因素，以了解家庭决策和多标量管理代理如何塑造城市森林变化和道路权公私空间内的环境。这项研究解决了三个主要问题：最近的变化，以解释社会人口家庭和邻里特征的行道树的空间分布？哪些管理代理人是最强的预测最近的变化，以街道树木分布和这些代理人的贡献如何变化的关系，在一个城市的社会生态模式？在何种程度上是家庭行道树管理决策相关的建成和生物生态材料特性的公共权利的方式？将在佛罗里达的坦帕及其周围的一个研究区域进行多方法实证分析，该研究区域包括典型阳光地带城市的单户住宅区。城市遥感和土地覆盖变化分析，结合地理空间分析技术，将用于研究与最近的变化，以街道树木分布更广泛的社会人口模式。住户调查和半结构化访谈技术，结合生物物理生长条件的评估，将被用来审查的相对贡献，街道树木分布的具体代理人和家庭公共道路景观决策的社会空间决定因素。这项研究将扩展一个旨在捕捉人类生态系统复杂性的研究框架，以揭示城市森林变化的鲜为人知的方面，例如历史遗产如何影响与路权相关的适应性管理选择。该研究项目综合了城市林业，空间科学，环境公平和城市生态学的理论和方法，为与复杂的社会，建筑和生物生态相互作用相关的空间环境变化提供新的见解。这项研究的结果将为城市环境管理和与公共-私人通行权空间相关的政策决策提供信息和指导。研究结果将以有益于地方和国家城市森林从业人员的形式，并通过与居民、邻里协会、民选官员和地方市政公共机构的介绍会和研讨会等外联工作进行介绍。通过这些渠道，该项目将增加对影响城市森林可持续性的因素的了解和理解，并将社会影响广泛扩展到学术界之外。