都會自然公園規劃─以二重疏洪道為例

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题名:	都會自然公園規劃─以二重疏洪道為例 Transforming flood discharge channel into metropolitan nature park, A case study in Erching Area
作者:	秦鈺惠 Chin, Yu-Hui
贡献者:	景觀學系
关键词:	河川廊道生態系統濕地復育都會型自然公園景觀生態結構棲地保育 River Corridor Wetland Restoration Urban Nature Park Landscape Ecological Structure Habitat Restoration
日期:	2013-01
上传时间:	2013-10-03 14:32:08 (UTC+8)
摘要:	近年來都市快速的發展，大幅度改變自然環境，使環境產生異常變化，此變化嚴重影響人類的生活品質，為此，以位於大台北都會區核心地帶的二重疏洪道為例，它歷經滄桑自洲仔尾溼地，變成農田再變成部分違建住宅聚落，再因洪氾因素變成「疏洪道」，相對地共生態結構，生物棲地與生態多樣性也產生劇變。在員山仔分洪設施完成後，本研究區洪氾機率降低，也因此造成逐漸轉型為「運動公園」之型式，怕對原來之生態棲地，並未增益，為此本研究探討是否有其它「發展定位」之可行性。在現行都市公園系統對於「自然公園」之定義未盡清楚，而民國99 年國家公園法修訂已增修了「自然公園」新類別，因此本研究擬以河川濕地為新的類型，探究如何用生態規劃方法提升都市河川廊道生態功能，並運用濕地營造手法將研究案例基地二重疏洪道規劃為都會型自然公園。本研究藉由了解生態結構之機能、公部門對改善河川生態機能的作法及政策、探討自然公園最佳空間規劃與土地利用模式，以及國外對此課題之作法與相關案例。瞭解提升河川生態機能之空間規劃手法，並將此做法運用於研究基地上。本研究成果發現「濕地復育」為提升都市生態機能之重要手段，利用濕地環境為主體，可建立都市生態環境研究基盤，並可將都市公園綠地系統之生態價值透過研究，建立合理規劃設計規範，以提升都市景觀生態多樣性。而在兼顧「防洪、生態、教育、休閒」之多功能下，期望「自然公園」之規劃能給予二重疏洪道更務實永續之發展願景！ In recent years, rapid changes in cities have posed significant and abnormal influences on natural environment. Human beings’ living quality has been severely impacted by the changes. Due to this, take Erching discharge channel, that is located the core of the megalopolitan Taipei City, the place used to be Chautsaiwei wetland, farmlands, then became a ground with unapproved constructions. Finally, serious because the flood risk, the discharge channel has been constructed here until now. For sure, the ecological structure here has been changing acutely. After finished building Yuanshantzu flood diversion channel, flood risk rate has reduced, and this area has become a sport park. Therefore, all changes here are probably destructive of habitat restoration. For this reason, this study would like to probe into that if Erchong has other feasibilities of developmental orientations. Existing urban park systems have no clear definition for “natural park” while in 2010 amendments to the National Park Act has added “Natural Park” as a new category; therefore, the present study aimed to use river wetland as a new category to investigate how to apply ecological planning method to facilitate ecological functions of urban river corridors and also how to apply wetland construction method to map out Erching flood discharge channel, the base of the case study, as an urban natural park. By means of understanding functions of ecological structure and public sectors’ ways and policies to improve ecological functions for rivers, discussing the optimal model of space planning and land uses for natural parks as well as other countries’ ways and related cases for this issue, the study attempted to propose a space planning method that improves ecological functions for rivers and applied it to the research base. The results showed that “wetland restoration” is an important measure to improve urban ecological functions. By using wetland environment as main body, infrastructure of urban ecological environment research can be established. Moreover, through the research suitable planning and design guidelines for ecological values of urban park green systems, diversification of urban landscape ecology can be enhanced. For giving consideration to flood prevention, ecology, education, and recreation, this study looks forward to that the planning of the "Natural Park" would help Erching flood discharge channel to be more sustainable development.
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