ندارد
AbdolRasoul Salman Mahini
Salman Mahini
Gorgan University of Agricultural Sciences and Natural Resources
author
text
article
2017
per
Environmental Researches
انجمن ارزیابی محیط زیست ایران
2008-9597
7
v.
14
no.
2017
3
3
https://www.iraneiap.ir/article_99362_7458609f47b41c59691d7a00004bd738.pdf
The studying of the effect of Ammonium phosphate fertilizer on Acidity and salinity of calcareous soils and Arsenic bioavailability with soils columns (Case Study Qurveh region)
Babak
Souri
Faculty of Natural Resources, University of Kurdistan
author
Fouzeieh
Beig Mohammadi
دانشگاه پیام نور ایلام
author
text
article
2017
per
Soil has always been a factor in contamination of groundwater and the food chain in ecosystems. In soils contaminated with heavy metals, the most important factors in heavy metal bio-availability are pH and Ec. Therefore, studying the effective factors on pH and EC such as chemical fertilizers is important. We used four columns of sampled soil and filled them with calcareous soils of Ghorveh region.Two control columns were filled with twice distilled water and two treatment columns were filled with ammonium phosphate fertilizer dissolved in water, and monitored for six months in laboratory. At the end of leaching period, seven sampels each 10cm apart were taken from each soil column and analyzed. The results showed that the effects of depth and treatments are significant for phosphate, pH and EC. There was also a significant difference between soil pH at the 0 cm depth for control and treatment samples (p<0.01). Due to the inverse relationship between pH and heavy metals bio-avialability, we conclude that ammonium phosphate fertilizer reduces pH in soil columns, causing an increase in bio-accessibility of heavy metals including arsenic to plants. As a result, there could be more release of arsenic to the environment. Due to the use of these soils for farming, there is a hightened risk of contamination of agricultural products with heavy metals in the region that ultimately threatens human health and other living organisms.
Environmental Researches
انجمن ارزیابی محیط زیست ایران
2008-9597
7
v.
14
no.
2017
5
14
https://www.iraneiap.ir/article_81150_5d5f0e04bfc6f43840db49187b85bc99.pdf
Investigation of visitors' impact management approaches in recreational areas
Simayeh
Galdavi
Gorgan University of Agriculture Sciences and Natural Resources
author
Marjan
Mohammadzadeh
Gorgan University of Agriculture Sciences and Natural Resources
author
text
article
2017
per
Visitors' management approaches are necessary for proper utilization of recreational areas. Early researches for visitors' management in recreational areas led to the introduction of carrying capacity concept. However, failing to achieve the carrying capacity goals directed researchers to development of other management approaches, including Limits of Acceptable Change (LAC), Visitors Experience and Resource Conservation (VERP) and Visitor Impact Management (VIM). Application of these approaches for recreational areas has been described in the present study. These aproaches provide systematic, complex and sophisticated bases for management of natural resources and social conditions in the outdoor recreational and tourism areas. In these aproaches, the typical carrying capacity question of ‘‘how much use or impact is too much’’ is redefined as ‘‘how much use or impact is acceptable or should be allowed?’’. Investigation of these approaches showed that there is no difference between VERP, LAC and VIM in terms of the concept they use. The three approaches to manage recreational resources in a siutable manner. In addition, all address questions of carrying capacity, appropriate visitor use, and biophysical impacts caused by recreation use. While each framework calls for its own steps and general procedures, they address both environmental and social conditions and also formulate management directions for future. Therefore, managers of recreational areas can use these approaches towards sustainability of these places.
Environmental Researches
انجمن ارزیابی محیط زیست ایران
2008-9597
7
v.
14
no.
2017
15
30
https://www.iraneiap.ir/article_81184_20a3fe7957c0dbb1957255ecc9156269.pdf
Prioritization options of waste separation from the source using TOPSIS method (Case Study, Shahid Rajaei residential town of Tehran)
Mona
Batouei
Malek Ashtar University of Technology
author
Jafar
Gheidar-Kheljani
Malek Ashtar University of Technology
author
text
article
2017
per
Modern societies are faced with the growth of urbanization which cause a lot of problems to the environment. One of the leading problems, especially in urban communities, is increasing waste that has elevated the importance of waste management in these societies. From the perspective of urban planners and researchers, waste separation at sourcehas received more attentionin comparison to other solutions, so that a variety of options and solutions for waste separation at source have been presented in articles, reports and studies. Some of these strategies have failed in practice, and some are still running despite low return. In this regard, the aim of the this study is to prioritize options for waste separation at source with regard to existing solutions offered in the relevant researches. The Shahid Rajaei residential town of Tehran, comprised the statistical population of this study. Based on Krejcie and Morgan table, the sample size was determined at 278 households, sampling was carried out randomly and data was collected through questionnaire. The options were prioritized based on proximity to the ideal solution (TOPSIS). According to the results, priorities were distinguished and introduced for better urban planning by the managers. The prioritization shows that in the area under study, methods that prodivde more material benefits to the citizens are of higher priority.
Environmental Researches
انجمن ارزیابی محیط زیست ایران
2008-9597
7
v.
14
no.
2017
31
42
https://www.iraneiap.ir/article_81186_ce05ceadf422ec1eb33d058c6f4ce55d.pdf
Identifying, Quantifying and Predicting of Landscape Patterns in Space and Time
Ehsan
Rahimi
Gorgan University of
Agricultural Sciences and Natural Resources
author
AbdolRasoul
Salman Mahini
Gorgan University of
Agricultural Sciences and Natural Resources
author
text
article
2017
per
In landscape ecology, approaches to identify and quantify landscape patterns are well developed for discrete landscape representations. Discretization is often seen as a form of generalization and simplification. Landscape patterns however are shaped by complex dynamic processes acting at various spatial and temporal scales. Thus, standard landscape metrics that quantify static, discrete overall landscape pattern or individual patch properties may not suffice when viewing landscapes as gradients or when quantifying spatially dynamic response surfaces resulting from model simulations of landscapes. As such, this study aimed to identify and provide an understanding of the applied approaches for describing spatial heterogeneity of ecosystems in landscape ecology. Different approaches were evaluated including landscape metrics, surface metrics, wavelength and spectral analysis, geostatic indices and Markova chains in quantifying changes of temporal– spatial patterns. Existence of different approaches and methods in identifying, quantifying and predicting of landscape patterns shows that landscape patterns may not be quantified using only one index or metric, rather, quantifications methods should be selected with regards to the aim when revealing the desired landscape patterns and ecological processes.
Environmental Researches
انجمن ارزیابی محیط زیست ایران
2008-9597
7
v.
14
no.
2017
43
60
https://www.iraneiap.ir/article_81187_258efb023218cda7e9b58a46c63f8801.pdf
Urban Resilience Zoning Against Earthquakes Using Fuzzy Logic and FAHP (Case Study: Region 12 of Tehran)
Hamideh
Heidarzadeh
University of Tehran
author
Jahanbakhsh
Balist
University of Tehran
author
Saeed
Karimi
University of Tehran
author
Hamid Reza
Jafari
University of Tehran
author
text
article
2017
per
Regarding the tectonic condition of Iran, this country faces a high risk of earthquake and there is virtually no place in this territory which can be called safe in terms of earthquake. Uncontrolled growth in Tehran metropolis has caused appearance of heterogeneous vulnerable textures. According to the possibility of earthquake and the necessity of planning ahead for this disaster, this study looked at zoning resilience of urban textures in district 12 of Tehran as a case. Among natural disasters, the earthquake can cause vast damages, hence the necessity to investigate its dimensions to reduce the damages. In this study, the FAHP technique was used to derive the importance of factors deemed relevant in resilience against earthquake. Then, the criteria were mapped and combined in GIS using weighted linear methid which showed the vulnerability of various parts of the textures. The results showed the model is not only applicable for determination of resiliency in district 12of Tehran, but also the possibility of calculating the level of resiliency against earthquake for the whole city.
Environmental Researches
انجمن ارزیابی محیط زیست ایران
2008-9597
7
v.
14
no.
2017
61
72
https://www.iraneiap.ir/article_81188_4b95645def1de3ff784ff0af473d6918.pdf
Gap Analysis Approach for Prioritization and Selection of Protected Areas
Ateieh
Farkhani
Gorgan University of
Agriculture Science and Natural Resources
author
Abdolrasoul
Salman Mahini
Gorgan University of
Agriculture Science and Natural Resources
author
Hamed
Karimi
Gorgan University of
Agriculture Science and Natural Resources
author
Ali Reza
Mikaeeli Tabrizi
Gorgan University of
Agriculture Science and Natural Resources
author
text
article
2017
per
Human population growth and the required infrastructure without regard to the principles of sustainable development may cause biodiversity loss, among other consequences. Nations have thus taken steps to establish protected areas to combat nature’s downgrading and biodiversity loss. The economic and political implications can be serious and reserves can be selected from low grade areas or even lose their protected status when they prove to be economically valuable. As a result, reserves tend to be concentrated on land that, at least at the time of establishment, had not been important economically. Another reason for the inappropriate location of reserves is simultaneous consideration of many reasons for reserve establishement. Therefore, the selection of protected areas requires a systematic method that considers important aspects of nature protection and selects the best set of areas towards ensuring integrity of the selected ecosystems. In Iran, in some cases the selection of the protected areas has been based on unsystematic methods relying heavily on expert judgements. Different software tools have been developed for the systematic conservation planning in the past twenty years. Analysis of protection gaps is one such method of systematic selection of conservation areas that is used for large areas and defines the current gaps in protection. In this method, distribution of plant communities and habitat requirements are used to complete and improve animal distribution maps. Then, the predicted distribution is compared with existing protected areas and sites located outside the established areas are identified and suggested for inclusion. In the present paper we demonstrate the application and analysis of deficiencies to prioritize and select appropriate areas for protection using zonation software.
Environmental Researches
انجمن ارزیابی محیط زیست ایران
2008-9597
7
v.
14
no.
2017
73
83
https://www.iraneiap.ir/article_81189_42f53ab494777de1d68055bfb9df9112.pdf