查詢結果分析
來源資料
頁籤選單縮合
| 題 名 | 臺中都會公園開發前後綠覆率與保水功能之研究=A Study of Vegetation Coverage and Water Storage Capacity at Taichung Metropolitan Park before and after Development |
|---|---|
| 作 者 | 林昭遠; 鐘澤平; 林家榮; | 書刊名 | 水土保持學報 |
| 卷 期 | 41:1 2009.03[民98.03] |
| 頁 次 | 頁31-43 |
| 分類號 | 434.273 |
| 關鍵詞 | 綠覆率; 截蓄保水; 洪水減量; Vegetation coverage; Water interception and storage; Flood reduction; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 台中都會公園位於台中縣市交界之都會區邊際地帶,具有休憩、淨化空氣、調節氣候、涵 養水源、及兼具都市與非都市區的緩衝綠帶等多功能大型都市森林公園。本研究以台中都會公 園開發前、開發後衛星影像光譜值,採用公園草坪區作為判釋綠覆率門檻值進行綠覆率評估, 雖然所得開發後之綠覆率比開發前減少5.97%,總保水量也比開發前少了1,885,415 m3,而洪 峰總流量則增加27.73 cms,但整體公園在開發所配置之截蓄保水設施、滯洪池發揮作用下, 開發後之保水指標不但比開發中增加,亦超出綠建築法規規定值,洪峰總流量開發後比開發中 也減少24.42 cms,同時在台中都會公園未曾發生水患情形,顯示截蓄保水設施、滯洪池只要 配置得當,不但小雨時可增加雨水的入滲,暴雨時則可容納瞬間之暴雨量減少水患,達到截蓄 保水設施與洪水減量之預期成效。 |
| 英文摘要 | Taichung Metropolitan Park is located at the land of city and county’s borders. It is a large metropolitan forest park with multi-functions such as recreation, air purification, climate modification, water resources conservation, and buffer vegetation strip between urban and suburban boundary. In this study, the remotely sensed data for grassland before and after park development are used to evaluate the vegetation coverage benefits by the established threshold for land cover discrimination. The derived vegetation coverage percentage and total water storage capacity decrease by 5.97% and 1,885,415 m3, respectively, and the simulated peak flow increases 27.73 cms comparing with the before development stage. However, the water storage index increases comparing with during park development stage and is higher than the requirement in the green architecture regulations. The simulated peak flow for after development stage is 24.42 cms lower than during development stage. In the meantime, Taichung Metropolitan Park has never suffered by flood events. It represents the infiltration capacity may be increased and heavy precipitation may be intercepted simultaneously with appropriate placement of storage facilities and detention tanks. The anticipated benefits for flood reduction by water storage facilities may be also received. |
本系統中英文摘要資訊取自各篇刊載內容。