Extended Abstract
Introduction
In the current era, following the occurrence of environmental crises, the destruction of resources and the creation of obstacles on the way to sustainable development, it is necessary to carry out programs based on the recognition and assessment of ecological potential so that exploitation in It should be fed continuously from the environment and the natural values of the environment should be preserved. Therefore, after formulating development strategies and implementing social economic programs, geographical survey of the region and recognition of its environmental capabilities and then determining the ecological potential of the land for different uses with the aim of continuous exploitation with the least Destruction and preservation of the environment is an inevitable necessity. The ecological capacity of the land allows the planner to determine the direction and solutions of the region's development based on the region's capabilities, and provide a plan that fits the conditions of the region. Evaluation of the ecological potential is an effective step and a suitable tool to direct the current activities and uses in the land towards sustainable development. FAO defines "land suitability assessment" as an assessment process that considers the performance of land when used for a specific purpose. The assessment process is directed towards optimal land use by providing important information about the opportunities and constraints in using a given land.
Materials & Methods
According to the review of various library sources as well as the conditions of the region, 10 criteria of Elevation, slope, Aspect, distance to main roads, distance to waterways, distance to fault, distance to landslide points, distance to flood plains, Normalized Difference Vegetation Index (NDVI) and land use were investigated as different criteria for capacity measurement. To study the capacity of the studied area and to prepare suitable areas for the development of Ecotourism, the following steps were carried out; A): Assessment of land suitability to check the capacity of the region for tourism development using the MCE method: First step) defining the set of evaluation criteria (information layers),  The second step) standardizing the criteria, The third step) defining the weights of each criterion, Fourth step) preparation of the final map: in the last step, the obtained weights were multiplied in the required layers and then added together. The fifth step) using the final desirability layer produced at the end of the fourth step, places that have a higher value than other areas, using the location method based on suitability and area (ZLS) as suitable places. They are selected for the development of nature tourism. B): Selection of the most important socio-economic parameters and ranking of the spots: the values of these indicators were extracted for the selected spots and at the end, the rank of each spot was determined using the TOPSIS method.
Results & Discussion
The results of the AHP questionnaire show that the Criteria of slope, Elevation and NDVI are the most important Criteria affecting the development of Ecotourism in this region. The results obtained for the development of Ecotourism in the studied area show that 21,269 (8.63%) hectares of the area are without capacity, and 6634 (2.70%) hectares are of the area with very high capacity. Due to the fact that a minimum area is required for the development of concentrated Ecotourism, in this study, seven areas with areas of at least 100 hectares were selected from the very high capacity category. Based on the results obtained from the AHP method, respectively, the indicators of the diversity of the area, the amount of pristine, the distance to road, the total population within 5 kilometers of the area and the average suitable map have the most importance on the selection of the best area for the development of Ecotourism. The results of the TOPSIS method show that region 2 is the best place for the development of Ecotourism in this watershed with a score of 0.8188. Then regions 5 and 1 were selected as the second and third regions with scores of 0.7868 and 0.6506 respectively. The places with the lowest rank are regions No. 4 and 3 with a score of 0.3197 and 0.0464 respectively.
Conclusion
Among the different capabilities of each region, tourist attractions are one of the most important natural resources in each region, and are important factors in attracting tourists and attracting capital, and thus are the main basis for sustainable development for the region. The results of the survey show that all three selected final regions are in the central part of Noor city and region 2 has the largest area (370.759 hectares) in terms of area. Also, according to the average map, it is equal to 0.928 and in terms of access, it is 144 meters away from the main road, and its virginity is 80%. Various studies (Balist et al., 2019), (Zarei et al., 2013), (Pour Ahmed et al., 2013) in the world show the superiority of this model (the combination of AHP method and TOPSIS method) over other models confirmed in their studies.