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題 名 | 以作物需水量為基礎之氣象分區研究=Climate Zoning for Taiwan Based on Irrigation Demand |
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作 者 | 洪媖琳; 蘇明道; 葉一隆; | 書刊名 | 臺灣水利 |
卷 期 | 46:3=183 1998.09[民87.09] |
頁 次 | 頁35-49 |
分類號 | 443.52 |
關鍵詞 | 氣候分區; 多變量分析; 作物需水量; Climate zoning; Multivariate analysis; Consumptive use; |
語 文 | 中文(Chinese) |
中文摘要 | 在農業生產過程中,農作物所需水分之多寡決定於作物種類及種植期間之氣象因 子,氣象條件是影響作物需水量重要的因子之一,常用的蒸發散量估算式大部分都依據溫度 、溼度、蒸發皿蒸發量、日照、降雨量等各種氣候因子建立。臺灣地區雖有不少氣象站,但 分佈之密度各地不一且並非全都有完整的儀器設備,若能將臺灣地區根據作物需水量的因子 做適當的分區,讓沒有完整氣象資料的地區可以找到一個氣候狀況與其相類似的地區再沿用 其氣象資料,對區域性作物需水量推估將相當有助益。本研究先對影響作物需水量推估的氣 候因子以多變量統計方法分析,檢驗各因子的影響程度及各因子間之相關程度,再進行集群 分析選出適當的集群數。分群確定後並求出各分區內氣象因子之統計特性,供做區域性灌溉 用水量規劃時推估作物蒸發散量之參考。研究中以溫度及溼度為分析之變量將全年分為六季 進行分區,與以往文獻中以溫度、溼度及降雨量為分析變量的結果有明顯差異。分區結果將 臺灣分為東部沿海、花東縱谷、南部及西南沿海、西北沿海等區域,並在分區完成後對溫、 溼度做分佈套配後,產生各分區之溫、溼度統計特性值,供做日後農業用水規劃之參考。 |
英文摘要 | The yield and quality of agricultural production are affected by the proper control of water during each growth stage. The crop water consumption demand depends on the crop varieties and climatic factors during the growing period. Although there are many meteorological stations around Taiwan, it is sometime a problem to get proper climatic data for evapor-transpiration (ET) estimation. The objective of this study is to construct climatic zoning for Taiwan using multivariate statistical techniques such as principle component and cluster analysis. Statistical estimations for different climate factors under different probability are found for each zone through distribution fitting. The results are useful for regional water demand planning. This zoning study is different from other related studies done by meteorologists. Because the zoning is foucused more on the demand side, the precipitation is excluded in the analysis. The island of Taiwan are classified into four climatic zones:the Eastern coast, the Southern and Southwest coast, the Northwest coast, and the East Coastal valley. The area covered by each zone is a bit different for each of the six climatic periods. Statistical feature values are also found for each zone in each period for temperature and humidity for use in agricultural water demand planning. |
本系統中英文摘要資訊取自各篇刊載內容。