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100 _aZhang, Tong
_957591
245 _aExploring the relationships between urban form metrics and the vegetation biomass loss under urban expansion in China/
260 _bSage,
_c2020.
300 _aVol. 47, Issue 3, 2020, ( 363–380 p.)
520 _aCompact urban form has been applied as a strategy to reduce the loss of green space that occurs from development, but the impact of this policy on the provision of green space still presents many uncertainties. This research investigated the statistical relationship between urban form indicators and the loss of vegetation biomass to understand the response of quality green space provision to changes in urban morphology. A methodology combining multi-source data assimilation, statistical analysis, and spatial analysis was adopted for the Yangtze River Delta cities of China. First, six urban metrics were selected to describe the shape and layout of urban patches in each city, and the total biomass loss index was then introduced as a parameter. The values of urban metrics and total biomass loss index were calculated for the 50 Yangtze River Delta cities. Second, ordinary least squares regression and geographically weighted regression analyses were then used to establish a quantitative relationship between total biomass loss index and urban form indicators. The results revealed an extremely negative correlation between total biomass loss index and the three urban variables of Richard compactness, density gradient, and the Gini coefficient; moreover, the parameter estimates for the three variables in the geographically weighted regression model were local and varied over space. Third, the mechanisms by which the urban form influences biomass loss were discussed and different urban form planning strategies for particular urban areas were suggested. In conclusion, compact urban form in a clustered layout of urban areas with a dense central agglomeration was verified to be ecologically superior and conducive to green space protection. For the physical interpretation of the statistical relationship between urban morphology and vegetation loss, the interface effect of urban agglomeration on vegetation merits further study.
700 _aChen, Sophia Shuang
_957592
700 _aGuangyu Li
_957593
773 0 _08876
_917104
_dLondon Pion Ltd. 2010
_tEnvironment and planning B: planning and design (Urban Analytics and City Science)
_x1472-3417
856 _uhttps://doi.org/10.1177/2399808318816993
942 _2ddc
_cEJR
999 _c14513
_d14513