| 摘要: | 都市綠地系統，應提供休閒、娛樂與教育等文化服務，亦包括供應、調節與支持等生態系統服務。然而，建成環境中公園綠地的面積小、數量少，再加上綠地通常個別進行設計及施做。使得「綠地系統」應提供的完整生態系統服務受到限制本研究以信義區為研究範圍，是其為臺北市中街道規劃最為完善、土地使用性質多元之行政區。區位緊鄰象山淺山地區，綠地種類多樣。
從景觀專業的面向討論綠地系統，使用景觀生態指數，不僅能體現出不同景觀格局對生態指數，以及生態系統服務造成的不同影響，還能體現出不同生態系統服務功能之間的影響。
本研究共進行8 項現地分析，結合13 種對於綠地、喬木多複層植栽數的景觀生態指數計算。對照生態服務功能之相關之分析項目，進行疊加分析，並且討論現地指數優缺點之成因。
分析結果顯示，信義區整體之生態指數，分別表現出各區域對應之生態系統服務功能的強弱，且其指數優劣與分布、成因皆不同。因此，針對不同區域分別對於四項生態系統服務功能，分別提出課題，並提出行之實際可操作之對策。
再者，從整體系統的角度提出規劃構想，構建出一個完整綠地系統，達到都市生態系統的有序平衡。根據不同的土地利用中綠地，其功能之優劣，分別提出設計原則。
然而，現有都市計劃、植栽相關法規、公私建案程序及相關產業，不僅形塑了現有大型街廓，且不斷有高效能的產品和方法出現。但同時又衍生出都市綠地生態功能單一、審核人員不具備生態專業之能力，以及新技術無法廣泛推廣等問題。鑒於本研究中所遇到的各種議題，建議相關研究若使用生態指數，分析景觀格局時，應以大尺度基地為佳，並且採用適宜尺度之網格，能藉此清楚分析、正確表達出景觀指數之分布狀態。
Green space system in urban environment should not only provide cultural services including leisure, entertainment, education in urban area, but also offer services with supply, regulation and support. However, in the reason of small size and quality in the existing parks, and the green space usually designed and constructed in the form of individual and single, "Green Space System" is restricted in the role of the integrity of the ecosystem services. Hsinyi District was chosen as the research scope of this study, which is perfect in street planning, multivariate in land use in Taipei. Hsinyi District is adjacent to Xiang mountain and diverse in green space types.
From landscape architecture perspective, the discussion of green space system with landscape ecology index can not only reflect different effects caused by diverse landscape patterns on the ecosystem services according to the ecological index, but also shows the mutual influence between different ecosystem services.
The research takes 8 site analysis in total, combining 13 landscape ecological index calculations of green lands and multi-layer tree planting. Compared to the analysis of the connection between ecological service functions, it discusses the reason of the advantages and disadvantages of the site.
The outcome indicates that the overall ecological index of Hsinyi District shows shows the ecological system service ability of different districts, and it differs in index, distribution and reasons. Therefore, it is put forward the topics and given practical solutions according to these 4 ecological system service functions respectively.
Moreover, it is proposed an integrated green system from the whole system perspective to balance the city eco-system. The design principals would be raised according to the land use and the function of the green land.
However, the existing urban planning, related planting laws, public and private property form the outline of the city and roads. Also, it continuously comes out products and methods with high productivity. This leads to the single ecological function of green lands, the lack of ability in ecological knowledge of the workers, and the new technology not being widely promoted. In the reason of the topics in this research, it is advised to study with large scale and suitable grid scale when ecological index used in landscape analysis. In this way can figure out and indicate the distribution of landscape index clearly. |
