Impact of Peri-urbanization on Ecosystem Services – A Case Study of Tainan

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Abstract Summary
According to the United Nations Population Division, 55% of the world's population lives in cities in 2018 and is estimated to increase to 68% by 2050(United Nations, 2018). The growing urban population drives land demand for residential and other activities. The continuous expansion of the urban area blurs the urban and rural borders in the past and breaks the urban-rural duality. Therefore, it forms a rapidly changing transition zone between urban and rural areas, called peri-urban areas(Woods, 2009). Peri-urban areas are areas directly affected by urban growth, land development, and pollution, as well as areas with agricultural and natural resource(Phillips et al., 1999). The role and importance of peri-urban areas in the urban region include controlling urban expansion, ensuring food security, mitigating and regulating climate change, and providing many services for the urban region(Lwasa et al., 2014; Rothwell et al., 2015; Salvati et al., 2016). Therefore, good planning and management of peri-urban areas, making them function properly and providing many services in the urban region is the key to achieving regional sustainable development(United Nations, 2012). However, under the rapid and unplanned urban growth, the rapidly changing characteristics of peri-urban areas often appear in the changes in population, land use, etc., which in turn triggers a series of impacts, including a lack of community cohesion(Munton, 2009), inadequate infrastructure supply(Singh & Maheshwari, 2014), impacts on agricultural and natural resource ecosystem services(McDowell et al., 2018), etc. In particular, the impact on the ecosystem services may involve many issues such as food security, urban heat island effects, air pollution, and flood disasters. Therefore, we must face up to the impact of the development of peri-urban areas on the environment. The planning and management of peri-urban areas cannot simply use the tools and methods used in the past for urban or rural areas. On the contrary, some new methods must be adapted to respond to the uniqueness of peri-urban areas(Allen, 2003; Toro Vasco et al., 2005). Most of the research discussed urban and rural issues from the perspective of urban or rural areas. However, the research on peri-urban areas can provide a very important message for the sustainable management of land(Duvernoy et al., 2018). Therefore, this research selects Tainan City in Taiwan as the research field. Tainan has many population and economic activities and is also an important agricultural production area in Taiwan. It should fully reveal the impact of urbanization on the environmental system in peri-urban areas. First, taking the peri-urban areas of Tainan as the research area. According to the characteristics of changes in peri-urban areas, select the change and development indicators of peri-urban areas and observe the spatial and temporal trends of various indicators. Second, representing the function of the environmental system with the concept of ecosystem services. After assessing and spatializing the value of its ecosystem services in each period, conducting a spatial and temporal comparative analysis with development indicators to explore the impact of developmental changes on the environmental system in peri-urban areas. In response to the importance of ecological resources in peri-urban areas and their role in the urban region. It also provides useful information for the planning and management of peri-urban areas in the future.
Abstract ID :
ISO429
Submission Type
Department of Urban Planning, National Cheng Kung University

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