|
A Study of finding Sites for Ecological Villages, Using Multi Criteria Evaluation
   Figure 3: Macro modeler Results In all, four factors and five constraints were identified. The factors included agriculture, job, wetland and aquifer. Beach, nature reserve, radon-gas risk, technical accessibility and slope were the possible constraints considered for this project. The factor maps created from the data provided consisted of fragments of plots scattered all over. The maps showing only areas higher than the preset threshold indicated all the areas capable of supporting eco-village. But when the weights were assigned to the factors the areas were limited to those that are more suitable. In the first weights, agriculture is noted to be more important than the other factors and that resulted in five suitable sites. When the robustness of the decision rule was tested by altering the weights, the results showed 4 sites but did not deviate greatly from the original weights results. This can be visually assessed in the images below:  Figure 4: The two outcomes of the MCE and MCE_2(altered) Final map created from the combination of the suitable sites and the land use map composes of different land use types. Among the suitable sites, there are areas that are more recommended than the others. This is due to their geographical extent and average scores. The suitable sites have therefore, been ranked from best to good. They are indicated on the map by arrows. From Figure 5, the relatively best sites for ecological village are mostly located far away from the highly exploited areas whiles the least good ones are quite close to these areas. |