فصلنامه مدیریت و برنامه ریزی محیط زیست
پیاپی 13 (پاییز 1393)

Investigation of land form characteristics of each region help to have a better recognition of its environmental attributes and such studies could help us in land evaluation and planning. Being familiar with process of these studies is one of the crucial information for each expert dealing with environment. In this paper the basic maps needed for physiographic studies are prepared in a region of Ilam province using topographical map (1:50000) and Arc view software. Then the maps were analyzed and land form parameters were compared with ecological model for urban, industrial and rural development. Results show that this region has suitable capability for development considering land form parameters.

Environmental Risk Assessment (ERA) is an important tool for management of environment and sustainable development achievement. With forecast and proper risk management, environmental damages will decrease. In this study, the environmental risk assessment of Taleghan dam by using Bayesian network (BN), with considering relations between variables and uncertainty, has been done. The main environmental risk factors for Taleghan dam based on the Delphi technique questionnaires and area features are selected. Based on these results, the distributions of the output node of the BN, including, changes in land use, effects on the population and erosion and sedimentation with the numbers of 0.350, 0.346 and 0.326 have the greatest effect and pollution, seismic, flooding, tourism and ecosensetivity with the numbers of 0.321, 0.312, 0.3071, 0.3070 and 0.296 are the next priorities. A developed BN can be used as a decision support system for solving multi-criteria decision problems. It also incorporates dependencies between nodes in modeling. In order to achieve a comprehensive solution to environmental risk of engineering projects such as construction of the dam, the integration of multi-criteria decision making methods and the Bayesian network has high performance.

With regard to the relationship between pollutants and meteorological parameters, in this study, we had studied preliminary on the daily, monthly and annual changes pollutants in the two stations and then we have studied on the meteorological parameters associated with the concentration of pollutants that we can be investigated the amount of type of relation and the relationship between pollutants and meteorological parameters. The effect of different daily meteorological parameters such as temperature, relative humidity, rainfall and the amount of pollutant concentrations were measured. Required data from the Shiraz Meteorological Bureau and pollution measurement stations affiliated with the Shiraz Environmental Protection Agency (Imam Hossein Square and Kazeroon gate) prepared and the data of period 2009 to 2013 are used. The results showed that there are two maximum levels for CO and NOX that could be happen in summer and winter. O3 maximum have been happen in spring and summer. All of pollutants have had two maximum levels except O3 that will be happen in early morning and late night. But about maximum and minimum O3will be happen at afternoon and night, respectively. The Maximum rate of CO in summer is higher than morning; however the Maximum rate of CO at winter in morning and night is the same.

Sustainable development in the world began in 1962 with the publication of the book "Silent Spring" by Rachel Carson, And in later years became a common word. In this way, important meetings at the level of heads of state was held on sustainable development in the world and decisions were adopted, included in the meeting of the 1992 a book contains 40 chapters named “Agenda 21” released by the United Nations as 21st century’s charter, and one of its chapters was devoted to water issues.Summit 2002 in Johannesburg also one of the priorities of countries to achieve sustainable development, water theme chosen.Water resources in the world use is in three major areas: agriculture, industry and urban consumption of course, much of it is used in agriculture.There are other requirements that is “environmental requirements”. This need is to support biodiversity and aquatic organisms life.Industry sector due to having access to technology and capital, in addition to meeting their needs for achieving sustainable development could be the subject of ecology and water needs of beneficiaries of its neighboring communities.United Nations Environment Programme in this regard, the experience gained and 20 samples from the water supply in the industrial sector for sustainable development in variouse countries has provided.

Environmental impact assessment of a project have consider on both positive and negative effects to predict and control methods to identify factors. This study was conducted to assessment the environmental impact Pareh-Sar, GUILAN combined cycle power plant. For this purpose, the method overlay evaluate the study area for the possible establishment of a combined cycle power plant using fuzzy logic in GIS environment and it has determined power. The environmental impact assessment of combined cycle power plant for construction and exploitation phases pareh-sar, GUILAN Iranian matrix was used. The effects of each of these phases on physical, biological and socio-economic environments was evaluated. Based on the results of the assessment of the project study area and numbers achieved from Iranian matrix effects during construction and exploitation actions showed that the negative effects of the project was,82.04% and 17.96% of the positive effects. The maximum amount of any activities on environmental in the range of moderate damage was about 46.67 percent. Also according to the environmental impact assessment of the project and the results of the Iranian matrix in less than fifty percent of the average ranking rows and columns less than(1.3); so considering improvement plans and corrective options should be the project implementation and operation. It also needs continuous monitoring and direct control over the properties of quantitative and qualitative indicators of changes in environmental standards and criteria.

Increasing human populations and thus increased human encroachment on nature and its resources in order to meet the needs of their future life creatures faced with serious challenges.Arasbaran Protected Area is located in northwestern Azerbaijan prouvince, Iran.An area of 80,650 hectares and is one of the most valuable natural areas over the country in terms of animal and plant species and one of the nine regions of the biosphere reserves in Iran.Unfortunately, the manipulation of man by building roads and human development, induced state of emergency activities in the region, this paper tries to study all factors affecting species in the area wildlife, habitat, human life using the strengths, weaknesses, opportunities, threats and may be somewhat improved area management problems.In order to achieve the objectives of this paper library research and field data collection process was carried out, to achieve long-term horizon habitat protection by examining the current situation it will attempt to reach the ideal situation.This practice by identifying strengths, weaknesses, threats and opportunities that we face in the study area is governed and to develop and analyze strategies for preserving habitats, sustainable use by local communities concerned, thus provide a practical model for the management of biosphere reserves Arasbaran suitable habitat and geographic conditions, the region's ecological potential.The objectives of the biosphere reserve in the sustainable utilization of the effective and continuous protection of local ecosystems, especially forests area, and the participation of local people and knowledge to provide area residents.It is recommended that included habitat management strategies Arasbaran be used by the Environmental Protection Agency

In the recent decades, Population growth and urbanization are causing Difficulties of social, economic and environmental, Such as the production of municipal solid waste and disposal have followed its principles.Now a day the disposal, location and proper management of solid waste sites as the city has become one of the environmental problems. So finding a suitable location for this important primary goal of urban development plans to achieve sustainable development.The aim of this study was to finding a suitable location city landfill Dehdez using information layer parameters, such as, land use, topography, layers of slope, Direction of slope, precipitation layer, waterways layer, fault, sensitive geological layers against erosion, away from the city and away from crowded villages through AHP model and GIS techniques are used.AHP is one of the most effective techniques is designed for decision-making with multiple criteria.