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:: Volume 28, Issue 4 (2014) ::
GeoRes 2014, 28(4): 83-94 Back to browse issues page
Monte Carlo Reiterations to Decrease Uncertainty in Pair Wise Comparison of Desertification Indicators
Adel Sepehr *
Ferdowsi University of Mashhad, Faculty of Natural and Environmental Sciences
Abstract:   (3145 Views)
Monte Carlo methods designed base on stochastic reiterations and can be useful in uncertainty conditions. The purpose of this research was investigation of uncertainty to rank desertification indicators. In order to decrease uncertainty have been applied Monte Carlo reiterations for each value of indicator، if rank of Xi is higher than rank of Xk constantly. Using multi dimension integrals the Monte Carlo program was run on JAVA environment. The results of simulation indicated that with increasing Monte Carlo reiterations the standard deviation of alternatives was decreasing. Also results showed that wind erosion، water erosion، land use alterations، biomass loss، canopy decreasing، grazing density and loss of rangelands quality were main indicators affecting desertification process.
Keywords: Monte Carlo, Uncertainty, Desertification Indicators, Pair wise index
Full-Text [PDF 369 kb]   (816 Downloads)    
Article Type: Original Research | Subject: Special
Received: 2018/04/22 | Accepted: 2018/04/22 | Published: 2018/04/22
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Sepehr A. Monte Carlo Reiterations to Decrease Uncertainty in Pair Wise Comparison of Desertification Indicators . GeoRes 2014; 28 (4) :83-94
URL: http://georesearch.ir/article-1-435-en.html


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Volume 28, Issue 4 (2014) Back to browse issues page
تحقیقات جغرافیایی Geographical Researches
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