environmental degradation model is one of the environmental impact assessment (eia) methods in which ecological cumulative effects of human activities on his surrounding nature could be evaluated and quantified. as a special trait of landscape ecological metrics is the ability of rapid assess and recognize of human activities in the shortest time. thus in this study, we used a landscape degrada...

the present study was conducted in the rangeland of glandrood watershed in the province of mazandaran. the objective of this study was to compare between the ecological amplitude of festuca ovina l., and poa bulbosa l., using the function hof along the gradient of the environmental variables. for this purpose 150 plots of 1m2 were established along the altitude gradient. the sampling method was...

Objectives : Since the risk of pollutants in soil environment may vary depending on characteristics, functions, and environmental conditions soil, site-specific ecological assessment (SERA) should be conducted to protect ecosystem from pollutants. It has been confirmed that each country is conducting SERAs based guidelines suitable for their own conditions. However, Korea, there a lack basis in...

in this study, sustainable management of saravan park of gilan was planned in the form a decision support system model in 3 periods of 10 years for different states of park and considering the economics, ecological and social criteria. in the first, using fuzzy analytic hierarchy programming, desirable level of economics, ecological and social criteria in their composite utility value in differ...