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Forest Sciences

Michigan Tech Publications

Urban green space

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Full-Text Articles in Life Sciences

Comparing Human Activity Density And Green Space Supply Using The Baidu Heat Map In Zhengzhou, China, Shumei Zhang, Wenshi Zhang, Ying Wang, Xiaoyu Zhao, Peihao Song, Guohang Tian, Audrey L. Mayer Aug 2020

Comparing Human Activity Density And Green Space Supply Using The Baidu Heat Map In Zhengzhou, China, Shumei Zhang, Wenshi Zhang, Ying Wang, Xiaoyu Zhao, Peihao Song, Guohang Tian, Audrey L. Mayer

Michigan Tech Publications

Rapidly growing cities often struggle with insufficient green space, although information on when and where more green space is needed can be difficult to collect. Big data on the density of individuals in cities collected from mobile phones can estimate the usage intensity of urban green space. Taking Zhengzhou's central city as an example, we combine the real-time human movement data provided by the Baidu Heat Map, which indicates the density of mobile phones, with vector overlays of different kinds of green space. We used the geographically weighted regression (GWR) method to estimate differentials in green space usage between weekdays …


Hydrological Effects Of Urban Green Space On Stormwater Runoff Reduction In Luohe, China, Peihao Song, Jianhui Guo, Enkai Xu, Audrey L. Mayer, Chang Liu, Jing Huang, Guohang Tian, Gunwoo Kim Aug 2020

Hydrological Effects Of Urban Green Space On Stormwater Runoff Reduction In Luohe, China, Peihao Song, Jianhui Guo, Enkai Xu, Audrey L. Mayer, Chang Liu, Jing Huang, Guohang Tian, Gunwoo Kim

Michigan Tech Publications

This paper reveals the role of urban green space (UGS) in regulating runoff and hence on urban hydrological balance. The modeling software i-Tree Hydro was used to quantify the effects of UGS on surface runoff regulation and canopy interception capacity in four simulated land-cover scenarios. The results showed that the existing UGS could mitigate 15,871,900 m3 volume of runoff (accounting for 9.85% of total runoff) and intercept approximately 9.69% of total rainfall by the vegetation canopy. UGS in midterm goal and final goal scenarios could retain about 10.74% and 10.89% of total rainfall that falls onto the canopy layer, respectively. …


Assessing The Ecosystem Services Of Various Types Of Urban Green Spaces Based On I-Tree Eco, Peihao Song, Gunwoo Kim, Audrey L. Mayer, Ruizhen He, Guohang Tian Feb 2020

Assessing The Ecosystem Services Of Various Types Of Urban Green Spaces Based On I-Tree Eco, Peihao Song, Gunwoo Kim, Audrey L. Mayer, Ruizhen He, Guohang Tian

Michigan Tech Publications

Urban green spaces play a crucial role in maintaining urban ecosystem sustainability by providing numerous ecosystem services. How to quantify and evaluate the ecological benefits and services of urban green spaces remains a hot topic currently, while the evaluation is barely applied or implemented in urban design and planning. In this study, super-high-resolution aerial images were used to acquire the spatial distribution of urban green spaces; a modified pre-stratified random sampling method was applied to obtain the vegetation information of the four types of urban green spaces in Luohe, a common plain city in China; and i-Tree Eco model was …