Envrionmental impact assessment of urban development plan by vulnerability model application
Journal Title: International Journal of Environmental Science and Technology - Year 2004, Vol 1, Issue 1
Abstract
Urban development plans have significant potential impacts on affected environment according to the various activities and due to their different construction and operation phases. Establishment and development of the new-established Municipality of Tehran District-22, with about 10,000 hectares area has been planned as the last limit of continuous extension of Great Tehran and as the largest urban city of the country. It is based on the general lay out of Tehran master development plan, ratified in 1970 and 1991. In terms of current facilities, it has been anticipated necessary spaces to establish various activities including residential, commercial and urban services, establishing green spaces, man-made lake and other necessary infrastructures of urban development. Griding method was used in order to determine the environment vulnerability of the development plan of the region. In this method, the studied district has been divided into 1 to 10 square kilometers grids. To improve the accuracy of the study, the grids dimension is smaller than the common size. After griding, the most appropriate layers out of the required layers have been used to determine the vulnerability. These layers are, land slope, geographical aspect, pedology, geology, plant density and ground water vulnerability. The limited codes of each layer have also been defined. Summary of the above-mentioned layers results have been analyzed in the map form 1:50,000 scale by Arc-View software in GIS system in order to determine the specification of impact units. After the determination of limitation, the most prevailing limited code of each grid was selected. The obtained results were transferred to excel program and the final amount of vulnerability were then calculated by using equation Ε =∑ (a-b)/4. The final vulnerability was substitute by each grid code as a new data and the last map of vulnerability was set. Regarding to this map at the studied region affected by current limitation of environmental condition, the north part of the district especially A9, B10, B11, B12, C9, C11, C18, D12 and E14 showed the highest amount of vulnerability. According to the final vulnerability map, it is distinguished that the north parts of the district mainly in parts 1 or 2 vulnerability codes have had high vulnerability.
Authors and Affiliations
J. Nouri , S. Malmasi
Keywords
Related Articles
- EP ID EP149585
- DOI -
- Views 98
- Downloads 0
Kinetics of copper desorption from soils as affected by different organic ligands
Desorption of Cu and low molecular weight dissolved organics are the primary factors that impact fate and transport of Cu in soils. To improve predictions of the toxicity and threat from Cu contaminated soil, it is criti...
Kinetics and thermodynamics study of lead adsorption on to activated carbons from coconut and seed hull of the palm tree
The kinetic and thermodynamic of the bath sorption of lead (Pb) on to activated carbon from Coconut (CA) and Seed hull of the Palm tree (GA) have been investigated. The effects of initial Pb concentration, contact time a...
Design of an Environmental Assessment Model on The Effect of Vehicle Emission in Greater Tehran on Air Pollution With Economic Sensitivity<br />
Air pollution is the presence of pollutants in the atmosphere from anthropogenic or natural substances in quantities likely to harm human, plant or animal life; to damage human-made materials and structures; to bring abo...
Long term scenarios and options for sustainable energy systems and for climate protection: A short overview<br />
Within one decade a fundamental choice will have to be made: Should the energy system follow the historical trends of risky and unsustainable energy use patterns? Or should it take the course towards sustainable developm...
Use of horizontal flow roughing filtration in drinking water treatment
In order to evaluate the feasibility of implementation of horizontal-flow roughing filtration for drinking water treatment a pilot was designed and run at the bank of Zayandehroud river near the village of Chamkhalifeh....