نتایج جستجو برای: ecological potential
تعداد نتایج: 1153885 فیلتر نتایج به سال:
Background and Objective: Soils and sediments contamination with trace and toxic elements lead to potential ecological risk and adverse effects on human health and so have been the cause of increasing concern worldwide. Therefore, this study was carried out to potential ecological risk assessment of As, Cd, Ni and V in surface sediments of Khazar Abad, southern parts of Caspian Sea in 2019. M...
in order to have a sustainable and valuable development, land planning is an essential issue and the potential assessment of the environment is the most important part of this subject. jiroft county has an acceptable potential for agricultural use, so the evaluation of its environmental potential for agricultural potential expansion is considered in this paper. in order to perform this research...
Background and Aim : Contamination of the surface soils of the urban ecosystem with heavy metals poses potential ecological risks. In this research, a preliminary investigation was carried out to evaluate the potential ecological risk of cadmium and lead contamination in urban park soils in Assadabed City, Iran. Materials and Methods : Soil samples were taken from the urban parks of Asad...
The toxicity of heavy metals in sediments of the Nayband Bay and Asaluyeh region and potential ecological risk to sediment organisms assessed. Three stations with different degrees of vulnerability of South Pars Oil and Gas Activities (1: Control - 2: medium affected and 3: severely affected) were selected in the study area. Sediment sampling at each station in both cold and hot seasons (2010) ...
one of the problems in forest park management, planning, and design is the tendency to consider recreation independent from aesthetic preferences and ecological objectives. this paper presents the findings of an examination of recreational activities in relation to aesthetics and ecological potentials in siangtan forest park in iran. although protected areas constitute most of this 591 ha park,...
Since forest parks have high importance in urban environment, evaluation of outdoor recreation potential and identification of the suitable regions for outdoor recreation usage in forest parks is necessary . In this research, the suitable areas for intensive and extensive outdoor recreation, their various degrees and outdoor recreation potential of Sorkhehesar forest park was identified using...
Background and Objective: The aim of the present study was to investigate the concentration, enrichment factor, Nemrow integrated pollution index, and potential ecological risk of heavy metals including (Pb, Ni, Cu, Zn, Cd, V and Cr) in surface soils of Ahvaz oil filed. Materials and Methods: For this purpose, 49 soil samples with a systematic scheme from Ahvaz oil field were analyzed by atomi...
in order to evaluate the ecological potential for assessing the ecotourism application a region was confined to dez river. mcharg method and networks method were applied. according to makhdoum’s method, to determine environmental units, the ecological resources of the region were surveyed. then evaluation of the ecological potential was carried out on the basis of ecotourism and qualified regio...
Four heavy metals were measured in forty-nine topsoil samples collected fromagricultural areas in Siakh-Darengoun, Iran. The goals were to investigate soil spatialdistribution patterns of metals; their potential ecological risk; and sources. The Hakansonpotential ecological risk index and index of geo-accumulation (Igeo) were used forevaluating t...
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