Peiyi Yin , Xuecao Li , Janne Heiskanen , Petri Pellikka
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引用次数: 0
Abstract
Urban vegetation phenology is a sensitive indicator of environmental changes and ecosystem responses to urbanization. Limited temporal coverage poses challenges to exploring the urbanization effect on vegetation phenology. In this paper, we adopt the double logistic model to characterize the decadal vegetation phenology dynamics of cities in the mid-high latitude Northern Hemisphere using composited images from Landsat satellites. We observe an advanced trend of the start of the season (SOS), delayed end of the season (EOS), and extended growing season length (GSL) of urban vegetation along with rapidly increased impervious surface area percentage (ISA%) over the past three decades (1991–2000, 2001–2010, and 2011–2020). The changes in LSP caused by urbanization were most pronounced in North America, followed by Europe and Asia. Globally, vegetation exhibited a consistent trend of earlier SOS along the urbanization gradients, with an average advancement of approximately 2.14 days per 5 % increase in ISA. EOS showed a delayed trend along the urbanization gradients, with an average delay of about 0.74 days per 5 % ISA. The advanced SOS and delayed EOS consequently contributed to a prolonged GSL with an overall extension rate of 2.87 days per 5 % ISA. Our results provide valuable insights into urbanization influences on vegetation phenology dynamics in cities over a long period and highlight the importance of considering the mechanisms driving the changes in vegetation phenology in response to urbanization.
期刊介绍:
Urban Forestry and Urban Greening is a refereed, international journal aimed at presenting high-quality research with urban and peri-urban woody and non-woody vegetation and its use, planning, design, establishment and management as its main topics. Urban Forestry and Urban Greening concentrates on all tree-dominated (as joint together in the urban forest) as well as other green resources in and around urban areas, such as woodlands, public and private urban parks and gardens, urban nature areas, street tree and square plantations, botanical gardens and cemeteries.
The journal welcomes basic and applied research papers, as well as review papers and short communications. Contributions should focus on one or more of the following aspects:
-Form and functions of urban forests and other vegetation, including aspects of urban ecology.
-Policy-making, planning and design related to urban forests and other vegetation.
-Selection and establishment of tree resources and other vegetation for urban environments.
-Management of urban forests and other vegetation.
Original contributions of a high academic standard are invited from a wide range of disciplines and fields, including forestry, biology, horticulture, arboriculture, landscape ecology, pathology, soil science, hydrology, landscape architecture, landscape planning, urban planning and design, economics, sociology, environmental psychology, public health, and education.