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題 名 | 運用ArcMap區域統計法及遙測影像分析農地利用及灌溉需水量=Application of ArcMap Zonal Statistic Method and Remote Sensing Imagery to Analyze Agriculture Land Uses and Irrigation Water Needs |
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作 者 | 盧建成; 詹錢登; | 書刊名 | 農業工程學報 |
卷 期 | 57:2 2011.06[民100.06] |
頁 次 | 頁1-15 |
分類號 | 440.98 |
關鍵詞 | 福衛二號影像; 地理資訊系統; 正規化差異植生指數; 逐像元式法; 區域統計法; FORMOSAT-II satellite image; Geographic information system; GIS; NDVI; Pixel-by-pixel method; Zonal statistics method; |
語 文 | 中文(Chinese) |
中文摘要 | 本文以高雄農田水利會中壇工作站轄區農地為研究範圍,使用福衛二號多時段 衛星影像及地理資訊系統,以逐像元式法及ArcMap 區域統計法來判釋農地使用情 形,將農地地表覆蓋區分為稻作、非稻作、水體及裸露土壤等四類型。搭配正規化 差異植生指數(NDVI 值),先以逐像元式法判釋各時段衛星影像,進行土地利用分 類,再運用ArcMap 的區域統計(Zonal Statistics)功能進行土地利用區域式分類, 藉以探討使用不同時段影像及其NDVI 值是否有助於提升農地分類判釋之精確度, 並比較逐像元式法與ArcMap 區域統計法對農地利用判釋分類結果的差異性。研究 結果顯示,使用二時段影像及其NDVI 值確實有助於提升農地利用判釋之精確度, 而且使用ArcMap 區域統計法影像判釋分類結果優於逐像元式影像判釋分類結果。 準確的農地利用分類結果將有助於提升估算農業灌溉需水量及作物生產量。 |
英文摘要 | Fousing on the agricultural lands controlled and managed by the Zhangtan Station of the Kaohsiung Irrigation Association, this study used FORMOSAT-II images and GIS system to differentiate and recognize the spatial and temporal usages of the agricultural lands through the pixel-by-pixel method as well as the zonal statistics method in ArcMap. With the use of the satellite images as well as their spectral responses, the agricultural land uses were classified into rice paddies, non-rice paddies, water bodies, and barren areas. The result shows that the use of NDVI can improve the accuracy of land-use classification from satellite images. The accuracy of land-use recognization by the ArcMap zonal statistics method is better than that by the pixel-by-pixel method. Effective and accurative classification of agricultural land uses is very helpful in effectively estimating the irrigation water requirements and the production of crops. |
本系統中英文摘要資訊取自各篇刊載內容。