8431

7812

كارشناسي ارشد

مرتعداري

اصفهان: دانشگاه صنعتي اصفهان، دانشكده منابع طبيعي

1392

سيزده،78ص.: مصور،جدول،نمودار

ص.ع.به فارسي و انگليسي

محمدرضا وهابي، مصطفي تركش اصفهاني

رضا جعفري، سعيد پورمنافي

25/10/92

عليرضا سفيانيان، محمودرضا همامي

مهندسي منابع طبيعي

ID7812

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Modelling the habitat suidtability of Fritillaria imperialis L Using Ecological Niche Factor Analysis ENFA Esfahan province Mehdi Najafi Email Address Mehdi Najafi@na iut ac ir 21 Sep 2013 Department Of Natural Resources Isfahan University Of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisors Mohammadreza Vahabi Vahabi@cc iut ac ir M Tarkesh esfahani tarkesh es@yahoo com Abstract Central Zagros has the richest genetic reservoirs in Iran and Fritillaria imperialis L sites originates from there Over the last few years for various reasons including drought industrial development urban and rural development and grazing unethical livestock has destroyed its origin and this valuable plant has been seriously threatened Today with the advancement of the science of statistics and GIS habitat modeling of the potential geographical distribution of plant species is possible This study aims to evaluate the potential sites of Fritillaria imperialis L which is located in Western ranges of Isfahan province For this purpose Ecological niche factor analysis ENFA were used that has found many applications for the modeling utility sites in recent years Ecological niche factor analysis ENFA just focus on the data that are known as predictive habitat models or model profiles The combination of GIS and statistical analysis It maps the geographic distribution of the species using species occurrence data and environmental layers In this regard spatial data of occurrence of the species were used as the actual locations for the plant species In addition the environmental climate soil and physiographic conditions were studied This area was used to identify environmental needs Soils data were converted to the maps using previous studies and interpolation of the points to the related to the soil profiles Climatic and physiographic maps have also been prepared using geostatistical methods and were ready to enter the final model After reviewing the biological and environmental data layers to ensure normality and lack of correlation between them Ecological niche factor analysis was applied BIOMAPPER software The distance of the plants was converted to potential site map using the harmonic mean distance transform algorithm in the province Profiles of specialization pluralism and tolerance margin equal to 1 547 6 325 and the 0 158 were calculated In order to assess the validity of this method the profile bovis were considered the value of this index for drawings produced by ENFA equivalent to0 92 percent were the whole is acceptable Generally layer of the environment of potassium Mqdarfsfr absorbent DEM slope and annual rainfall in this area was reversed as the most important factors affecting the habitat of the species tulips Based on potential habitat maps the suitable areas for tulip are elevation of 2500 2300 m annual rainfall of 300 600 mm meters annual temperature of 9 12 C in the north and northeast potassium than ppm 196 medium textured to moderately heavy 31 to 43 clay slope moderate 18 to 25 percent soils with low salinity less from 1 22 to 1 80 dS m phosphorus ppm 11 17 saturated soil moisture content between 38 to 58 and pH of 7 86 is 7 99 Potential distribution modeling of plant species can be helpful in locating the suitable areas for potential habitat restoration of species such as Fritillaria imperialis and managing plans and protecting endangered species Keywords modeling geographical distribution of plant species Fritillaria imperialis L Ecological niche factor analysis geostatistics GIS Isfahan PDF created with pdfFactory trial version www pdffactory com

محمدرضا وهابي، مصطفي تركش اصفهاني

رضا جعفري، سعيد پورمنافي

عليرضا سفيانيان، محمودرضا همامي