توان اکولوژیک

Chitgar park with an area of 54000 hectares including heights is limited to the chitgar land to the north, from the south to the Tehran-karaj freeway, from the west to azadshahr and pykanshahr and from the east to the rabbit area of the valley is limited and with an area of about 950 hectares of land plowed, of the largest forest parks and tourist hub of Tehran province is considered. Evaluating the ecological capability of areas for ecotourism known as a means to achieve this goal.

Regarding the ecological characteristics of the area, environmental assessment of Chitgar Park for a central outing using a hierarchical analysis process was performed. First by reviewing various sources criteria and sub criteria are selected, then, using the paired comparison questionnaire weigth of criteria and sub-criteria were determined and used from the hierarchical analysis process to measure the criteria.

Maps were prepared for the specified factors and according to the given weights in the paired comparision questionnaire weight maps were also prepared, then the map of concentrated recreation entertainment was classified and the area of each floor was determined.

Power assessment was made according to the weigth assigned to the central recreation expertchoice 11 were used to weigth the criteria and ArcGIS 10.5 software was used to analyze the layers. Based on the results, about 80% of the area is concentrated on the central reflexion.

The aim of this study is to investigate the ecological potential of the land in order to increase the level of afforestation.

Initially, gradient maps, altitudes above sea level, geographical directions, temperature, rainfall, humidity, soil, canopy percentage with digitizing data received from relevant organizations and agencies. To evaluate ecological capability, fuzzy membership functions were standardized. In the following, the criteria used in the evaluation were prioritized based on multi-criteria evaluation and analytical hierarchy process and using the Expert selection software, the final weight was determined for each criterion.

The criterion of altitude from the sea level has the highest value in the criteria and the criterion of gradient has the lowest value in the criteria. The results of this study showed that ecological power is directly related to ecological factors, especially climatic and physiographic factors. The results of the ecological capability assessment for afforestation operations with AND activated show that 5566 hectares of land are located in a very high class. The results of ecological capability assessment for afforestation with gamma activated show that 3098 hectares from the area are very large in class.

Finally, considering that about 60% of the area of the study area is covered with forest, according to the results of ecological power assessment for forestry, this study can be effective in recognizing the forestry potential and as a result of forestry development in this region.

Present status of cities emphasizes on the creation of an extensive and planned green space, with highlighting green spaces in order to establish ecological balance against the built environment. In this context, ecological parks that have been raised at the end of the last century, can be as an important factor to solve this problem. The overall objective of this study is to enhance the urban environmental conditions in order to promote the environmental sustainability through ecological designing and connecting the built environment with the existing natural virgin lands such as mountains in the cities. In this way, a suitable condition can be introduced as the scientific-economic support for education and developing a proper environmental culture.
The method used in the present study is based on descriptive and analytical practices. In this study, the southwest mountains of Mashhadhave been studied. After fundamental studies, the case study examples, feasibility and evaluation of the ecological capability of the study area were conducted. Finally, based on Makhdom’s model, the results were presented as solutions.
The findings show that only 35% of the study area have a potential for future use and activities and the rest should be considered as a virgin natural area. In potential activity zones, zoning is done in a way that in the edges with a lower slope connected to the city, there is greater utilization of land and with penetrating into the site and higher slopes, utilization of land is reduced.
The results show that in the process of eco-park designing as an ecological design sample, those criteria and activities which distinguish eco-parks from other types of parks are taken into account. Also in the designing process with ecological assessment, with respect to the environmental layers and localization of ecological models for determining the value of land use, the highest efficiency and minimum environmental impact can be achieved.

Land use planning is the only rational way to avoid environmental crisis and attain sustainable development. The aim of this study is to develop a land use plan for sustainable development in the Chehl-Chai watershed in Golestan province. With the identification of the ecological resources in the watershed, using word national land use planning models, which is calibrated for Iran, land use mapping and classification were conducted. The environmental units map was overlayed with several thematic maps to obtain ecological capability for conventional land uses. Priority setting was then carried out by comparative- quantitative method to choose more suitable alternatives in the assessment units. In order to increase income and decrease conflicts between agriculture and range management, aquaculture, indoor recreation, and conservation alternatives, the land use allocation was finalized based on their acceptable ecological conditions. The results show that according to the capability models, land allocation to forestry, agriculture and range management, aquaculture, outdoor recreation, residential development and conservation is at a percentage of 64.29%, 5.57%, 0.24%, 1.01%, 15.41%, 6.75% and 6.72%, respectively. The Kappa index was then used to estimate the conformity of the future and the current land uses; the index calculated to be 0.18 which shows slight agreement between the two.

In this research common methods of ecological capability evaluation of forests were reviewed and limitations for performance were analysed. Ecological capability of forests is an index that show site. potential in several role of wood production, soil conservation, flood control, biodiversity, conservation and water supply. This index is related to ecological characteristics of land, such as soil, microclimate, elevation, slope and aspect that affect potential of sites. Suitable method of ecological capability evaluation must be chosen according to the objective of forestry. Common methods for ecological capability evaluation include plant and animal diversity, site index curve, soil and landform, interbranches, index plants, leave analyses, analyses regeneration and ecological mapping