Sensitivity analysis of land unit suitability for conservation using a knowledge-based system.

Environmental Management
Hope C HumphriesKeith M Reynolds

Abstract

The availability of spatially continuous data layers can have a strong impact on selection of land units for conservation purposes. The suitability of ecological conditions for sustaining the targets of conservation is an important consideration in evaluating candidate conservation sites. We constructed two fuzzy logic-based knowledge bases to determine the conservation suitability of land units in the interior Columbia River basin using NetWeaver software in the Ecosystem Management Decision Support application framework. Our objective was to assess the sensitivity of suitability ratings, derived from evaluating the knowledge bases, to fuzzy logic function parameters and to the removal of data layers (land use condition, road density, disturbance regime change index, vegetation change index, land unit size, cover type size, and cover type change index). The amount and geographic distribution of suitable land polygons was most strongly altered by the removal of land use condition, road density, and land polygon size. Removal of land use condition changed suitability primarily on private or intensively-used public land. Removal of either road density or land polygon size most strongly affected suitability on higher-elevation US ...Continue Reading

References

Apr 1, 1990·Microbial Pathogenesis·M P Jackson
Feb 12, 2000·Proceedings. Biological Sciences·A S RodriguesK J Gaston
Jun 20, 2002·Environmental Management·David M StomsFrank W Davis

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