頁籤選單縮合
題 名 | 國有林事業區分群之研究=A Study on Establishing the Scheme of the Working Circles on the National Forest Land |
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作 者 | 邱祈榮; | 書刊名 | 國立臺灣大學農學院實驗林研究報告 |
卷 期 | 11:3=217 1997.09[民86.09] |
頁 次 | 頁53-77 |
分類號 | 436.74 |
關鍵詞 | 事業區; 地理資訊系統; 數值地形模型; 相似性係數; 矩陣群團分析; 自然度; Work circle; Geographic information system; Digital terrain model; Coefficient of similarity; Matrix cluster analysis; Degree of nature; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究係利用國有林事業區邊界、數值地形資料及土地利用型之地理資訊系統資 料, 經由三個主要分析步驟:重疊分析、矩陣群團分析與綜合評估,將現有國有林地的 37 事業區與 3 個實驗林依其高程、坡率及土地利用型分佈之特性予以分群。 首先由重疊分析 建立各事業區於高程、坡率與土地利用型的相對分佈百分率,再計算兩事業區彼此間的相似 性,進而建立所有事業區間的相似性係數矩陣,再經由矩陣群團分析,依相似性之高低,逐 一將事業區事業區聯結,導出樹枝圖。於樹枝圖中的事業區軸上,相似之事業區必互相靠近 ;其另一軸則為相似性係數值以表示其相似程度。最後在樹枝圖上,利用適當的相似性臨界 值予以切分,便可將各事業區予以分類。將 40 個區域區分成 6 種高程型群或 5 種坡率型 群或 5 種土地利用型群,最後經綜合評估分成 7 個綜合型群。由於各項結果均能獲得合理 的生態解釋,充份顯示出所發展分群模式頗具實用性,值得未來應用於相關之分群工作。 |
英文摘要 | In order to have better understanding of the characteristics of working circles, a classification scheme, based on elevation, slope, and land use information, was developed for classifying the working circles into groups. Three steps are included in the classification procedure. They are overlay operation, matrix cluster analysis, and integrated evaluation. Fist, the relative distribution functions of elevation, slope, or land use were generated by overlay operation. Next, based on the relative distribution function, the matrix of coefficient of similarity was established. Thus, using matrix cluster analysis of coefficient of similarity, 40 areas were classified into 6 elevation groups, 5 slope groups, or 5 land use groups. At last, 6 integrated groups were integrated from elevation, slope, and land use groups. The results indicated the scheme of work circles could be interpreted ecologically very well. |
本系統中英文摘要資訊取自各篇刊載內容。