Incorporating Ecological Constraints into the Simulations of Tropical Urban Growth Boundaries: A Case Study of Sanya City on Hainan Island, China
The rapid expansion of cities in tropical regions has triggered a series of problems such as the destruction of rare natural resources and decreases in the environmental resource carrying capacity and ecological security, which seriously threaten the sustainable development of tropical cities. In th...
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MDPI AG
2022-06-01
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Online Access: | https://www.mdpi.com/2076-3417/12/13/6409 |
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author | Nianlong Han Ke Hu Miao Yu Peihong Jia Yiqing Zhang |
author_facet | Nianlong Han Ke Hu Miao Yu Peihong Jia Yiqing Zhang |
author_sort | Nianlong Han |
collection | DOAJ |
description | The rapid expansion of cities in tropical regions has triggered a series of problems such as the destruction of rare natural resources and decreases in the environmental resource carrying capacity and ecological security, which seriously threaten the sustainable development of tropical cities. In this study, the city of Sanya, Hainan, China, is taken as an example. A bottom-line ecological security pattern is constructed based on the remote sensing ecological index (RSEI) and the patch-generating land use simulation (PLUS) for urban growth boundary (UGB) delineation. The results show that Sanya has a good ecological background, but the overall ecological quality decreased from 2014 to 2018 due to the expansion of construction in hot spot areas. Under the natural growth scenario, the urban built-up area in Sanya in 2030 will be 73.81% greater than in 2018, mainly occupying a large amount of agricultural and ecological space, and urban expansion will not be effectively suppressed. Delineation of the UGBs combined with the ecological constraints can effectively protect the regional ecological security and control the urban sprawl, which is relatively consistent with the current planning. The results of this study demonstrate that the RSEI-PLUS-based UGB delineation perspective has a high scientific and applicability, and they provide a reference for the coordinated ecological–economic sustainable development of ecologically fragile cities in tropical areas. |
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language | English |
last_indexed | 2024-03-09T22:08:43Z |
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spelling | doaj.art-b30e1a280d384b3297691a76770c59412023-11-23T19:36:09ZengMDPI AGApplied Sciences2076-34172022-06-011213640910.3390/app12136409Incorporating Ecological Constraints into the Simulations of Tropical Urban Growth Boundaries: A Case Study of Sanya City on Hainan Island, ChinaNianlong Han0Ke Hu1Miao Yu2Peihong Jia3Yiqing Zhang4School of Geography and Tourism, Huizhou University, Huizhou 516007, ChinaSchool of Public Administration, Hainan University, Haikou 570228, ChinaSchool of Public Administration, Hainan University, Haikou 570228, ChinaSchool of Public Administration, Hainan University, Haikou 570228, ChinaSchool of Resource and Environmental Science, Wuhan University, Wuhan 430072, ChinaThe rapid expansion of cities in tropical regions has triggered a series of problems such as the destruction of rare natural resources and decreases in the environmental resource carrying capacity and ecological security, which seriously threaten the sustainable development of tropical cities. In this study, the city of Sanya, Hainan, China, is taken as an example. A bottom-line ecological security pattern is constructed based on the remote sensing ecological index (RSEI) and the patch-generating land use simulation (PLUS) for urban growth boundary (UGB) delineation. The results show that Sanya has a good ecological background, but the overall ecological quality decreased from 2014 to 2018 due to the expansion of construction in hot spot areas. Under the natural growth scenario, the urban built-up area in Sanya in 2030 will be 73.81% greater than in 2018, mainly occupying a large amount of agricultural and ecological space, and urban expansion will not be effectively suppressed. Delineation of the UGBs combined with the ecological constraints can effectively protect the regional ecological security and control the urban sprawl, which is relatively consistent with the current planning. The results of this study demonstrate that the RSEI-PLUS-based UGB delineation perspective has a high scientific and applicability, and they provide a reference for the coordinated ecological–economic sustainable development of ecologically fragile cities in tropical areas.https://www.mdpi.com/2076-3417/12/13/6409ecological constraintsPLUSurban growth boundarytropical city |
spellingShingle | Nianlong Han Ke Hu Miao Yu Peihong Jia Yiqing Zhang Incorporating Ecological Constraints into the Simulations of Tropical Urban Growth Boundaries: A Case Study of Sanya City on Hainan Island, China Applied Sciences ecological constraints PLUS urban growth boundary tropical city |
title | Incorporating Ecological Constraints into the Simulations of Tropical Urban Growth Boundaries: A Case Study of Sanya City on Hainan Island, China |
title_full | Incorporating Ecological Constraints into the Simulations of Tropical Urban Growth Boundaries: A Case Study of Sanya City on Hainan Island, China |
title_fullStr | Incorporating Ecological Constraints into the Simulations of Tropical Urban Growth Boundaries: A Case Study of Sanya City on Hainan Island, China |
title_full_unstemmed | Incorporating Ecological Constraints into the Simulations of Tropical Urban Growth Boundaries: A Case Study of Sanya City on Hainan Island, China |
title_short | Incorporating Ecological Constraints into the Simulations of Tropical Urban Growth Boundaries: A Case Study of Sanya City on Hainan Island, China |
title_sort | incorporating ecological constraints into the simulations of tropical urban growth boundaries a case study of sanya city on hainan island china |
topic | ecological constraints PLUS urban growth boundary tropical city |
url | https://www.mdpi.com/2076-3417/12/13/6409 |
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