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  • ACRS 2000


    Forest Resources
    Application of Ecosystem Management Decision Support System in selecting suitable site for Taiwania



    4. Discussion
    Though this study shows the value of EMDS in suitability analysis, there is still some problem with respect to the analysis units. The analysis units in the resulting map are complex, and the locations and boundaries are difficult to define in real world, which may cause the work difficult. The common units must be created in order to build the database for ecosystem decision support system.

    First order watershed unit and soil unit were used because the choice of species is a type of small scale ecosystem management. For incorporating the ecological issues at different scales in EMDS, all the units must be converted to match the corresponding watershed unit, which is used as the basic unit.

    5. Conclusion
    The following conclusions can be drawn from this study:
    • It is feasible to apply EMDS in species determination in Taiwan. As for large scale forest planning, more complex factors must be considered, and more perspectives such as economics, society, must be involved.
    • Topographic factors are too rough to determinate the species, because the species determination is a local forest programming. Data scale must be selected carefully to match the study issues.
    Reference
    • Cheng, CC. ,1995. GIS application in forest land classification. Taiwan Journal of Forest Science, 10(2), pp. 241-54 [in Chinese with English summary].
    • Densham, P.J. and M.F. Goodchild, 1989. Spatial decision support system : A research agenda. GIS/LIS Proceedings, Vol. 2. pp. 707-716.
    • Herrington, L.P. and D.E. Koten,1988. A GIS based decision support system for forest management. GIS/LIS'88 Proceedings, Vol. 2. pp. 825-831.
    • Jeng H. D., 1994. A Research on Spatial Decision Support System --Designing A System for Land Use Models Building Assistant Environment. [MSc thesis]. National Taiwan University, Taiwan. [in Chinese with English summary].
    • Keith M.Reynolds, EMDS User's Guide (Version 2.0)
    • Lai H.Y., 1995. DTM, GIS applications in planning water conservation protected forest [MSc thesis]. National Taiwan University, Taiwan. 131 p. [in Chinese with English summary]
    • Meulen, G..G.., 1992. Geographical information and decision support system, Computer, Environment and Urban Systems, 1(16), pp. 187-193.
    • Robert H.G. et al., 1987. Neutral models for the analysis of broad-scale landscape pattern. Landscape Ecology, 1(1), pp. 19-28.
    • Salwasser H, and R.D. Pfister, 1994. Ecosystem management: from theory to practice. In: US Department of Agriculture, Forest Service, editor. Sustainable ecological systems: implementing an ecological approach to land management. Gen.Tech.RM-247, Rocky Mountain Forest and Range Experiment Station, 363 p.
    • Shrestha,B.P. and Duckstein L., 1998. A Multiobjective Decision Support System Multiresource Forest Management. Group Decision and Negotiation, Vol.7. pp. 23-40.
    • Sharpe, D.M. and Yang, Z., 1991. Design of buffer zones for conservation areas and a prototype spatial decision support system(SDSS). GIS/LIS'91 Proceedings, Vol. 1. pp. 60-70

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