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Altering urban greenspace patterns and heat stress risk in Hanoi city during Master Plan 2030 implementation

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  • Liou, Yuei-An
  • Nguyen, Kim-Anh
  • Ho, Le-Thu

Abstract

Hanoi City has been greatly reshaped owing to its “Master Plan by 2030 and a vision to 2050 by Decision 1259/QD-TTg of Vietnam” (called Hanoi Master Plan thereafter). This Hanoi Master Plan results in multi-challenges for the Hanoi City in terms of conserving urban greenspace (UGS). This study pursues to (1) investigate the changing environmental spatial patterns of UGS, (2) identity the areas at high risk due to heat stress based on abnormal land surface temperature (LST) distribution and demographic vulnerability, and (3) suggest mitigation strategies to the authorities by using the proposed UGS management platform. Sentinel-2 multispectral instrument (MSI) data was used to examine the evolution of UGS in relation to LST derived from Landsat 8 OLI thermal band that was subsequently utilized to create heat stress risk patterns. The study region is the inner Hanoi City. The UGS was investigated during the timeframe from Oct. 2016 to Oct. 2018. Accuracy assessment was performed by using Google Earth and field survey data. Results showed that UGS in inner Hanoi City is much declined by 1.3% for woodland and by 4.4% for shrub land, while grass-cover is increased by 2.4% in recent 2 years. Overall accuracies are of 96% and 88% with Kappa coefficients of 0.92 and 0.78 for land cover classification in 2018 and 2016, respectively. Urban heat stress index patterns showed a higher risk in the central inner-city areas of dense residential regions characterized by dense built-up. The identification of environmental heat stress risk patterns provides useful information for calling more attention of urban planners, authorities and health organizations.

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  • Liou, Yuei-An & Nguyen, Kim-Anh & Ho, Le-Thu, 2021. "Altering urban greenspace patterns and heat stress risk in Hanoi city during Master Plan 2030 implementation," Land Use Policy, Elsevier, vol. 105(C).
    • Handle: RePEc:eee:lauspo:v:105:y:2021:i:c:s0264837721001289
    DOI: 10.1016/j.landusepol.2021.105405
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    References listed on IDEAS

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    1. He, Bao-Jie & Zhu, Jin & Zhao, Dong-Xue & Gou, Zhong-Hua & Qi, Jin-Da & Wang, Junsong, 2019. "Co-benefits approach: Opportunities for implementing sponge city and urban heat island mitigation," Land Use Policy, Elsevier, vol. 86(C), pages 147-157.
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    Cited by:

    1. Kumar, Pankaj & Kumar, Parveen & Garg, Ramesh Kumar, 2021. "A study on farmers' satisfaction and happiness after the land sale for urban expansion in India," Land Use Policy, Elsevier, vol. 109(C).
    2. Doan, Quang Cuong, 2024. "The spatiotemporal trends of urban-rural green spaces and their heterogeneous relationships with population and economic vitality: Evidence from the Red River Delta, Vietnam," Socio-Economic Planning Sciences, Elsevier, vol. 93(C).
    3. Ling Qin & Han Liu & Guofei Shang & Huicai Yang & Haiming Yan, 2022. "Thermal Environment Effects of Built-Up Land Expansion in Shijiazhuang," Land, MDPI, vol. 11(7), pages 1-15, June.
    4. Fei Li & Tan Yigitcanlar & Madhav Nepal & Kien Nguyen Thanh & Fatih Dur, 2022. "Understanding Urban Heat Vulnerability Assessment Methods: A PRISMA Review," Energies, MDPI, vol. 15(19), pages 1-34, September.

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