生態系經營決策支援系統之建立，可有效協助林業經營者從事森林生態系經營之工作。以往所建立之地理資料庫，由於並非以地景為資料庫建立單元，因此無法適用於現今生態系經營以地景為經營單元之實務應用。本研究為建立生態系經營決策支援系統之先驅研究，以六龜試驗林為試區，應用數值地形模型萃取出不同河川級序之多尺度生態單元，並以所萃取出之生態單元為基礎，提出地理資料庫之規劃與整合之方法，包含複合式邊界之訂定、資料庫建立與彙整、以及圖幅空間對位等。所建立之多尺度生態單元地理資料庫，共分為基本圖層類、向量圖層類、網格圖層類以及衛星影像資料類等四大類，同時並將所建立的資料庫整合於美國林務署所開發之生態系經營決策支援系統EMDS軟體中，以供後續研究分析使用。
Ecosystem management decision support system (EMDS) is a useful tool for forest management. The establishment of an EMDS allows integrated knowledge-based ecosystem analysis using landscape classification as the primary database unit. Therefore, it is superior to a traditional geographic database which does not employ landscape data. This report is an EMDS pilot study implemented at the Liukuei Experimental Forest of the Taiwan Forestry Research Institute. The procedure involved 3 main tasks: 1) extraction of multi-scale ecological units from a digital terrain model based on different stream orders; 2) planning and integration of a geographic database, including delineation of composite boundaries, compilation of the database, and spatial matching of the data layers; and 3) establishment of a multi-scale geographic database which relates base maps, vector maps, raster maps, and satellite images. Meanwhile, the established geographic database has been integrated into the EMDS and will be used in further analyses.
