عنوان :
بررسي تغييرات مكاني آرسنيك ، سلنيوم و واناديوم در اراضي صنعتي ، كشاورزي و شهري منطقه اصفهان
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي
صفحه شمار :
هجده، 155، [II] ص.: مصور، جدول، نمودار، نقشه
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
مجيد افيوني، نادر فتحيان پور
استاد مشاور :
محمود كلباسي
توصيفگر ها :
ژئوشيميايي , خاكسازي , انتقالات اتمسفري , واريوگرام , كريجينگ , كوكريجينگ
تاريخ نمايه سازي :
25/4/86
استاد داور :
حسين شريعتمداري، جهانگير عابدي كوپايي
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتال
چكيده انگليسي :
AbstractThe industrial agricultural and urban activities have caused pollution of heavy metals insoil that can also increase concentration of the metals in food chains Because of theheavy agricultural and industrial activities in province of Isfahan we need to determinethe concentration of heavy metals in the soil The purpose of this study was to determinespatial variability of Arsenic As Selenium Se and Vanadium V in Isfahan soils Inthis research the topsoil samples 0 20 cm were collected in a stratified randomsampling system at about 4 Km intervals in a study area of 6800 Km2 The positions ofsamples were recorded using a GPS After preparing in laboratory the soil samples weremeasured for total As Se and V by a XRF soil pH organic mater OM sand silt andclay contents soil electrical conductivity EC Spatial structures of variables weredetermined by variograms Variograms were prepared in directional form for all thevariables The results show lack of suitable structure for pH and strong structure for As Se V OM clay content and soil EC Spherical model was the best model to describespatial variability of the variables Mean square error MSE and correlation coefficientwere used to determine validation of the variograms The result showed the greatestaccuracy of estimation was for soil EC Distribution map for the heavy metals wereprepared using the obtained information from elements by point kriging method and byusing of Surfer software Interpolation in blocks by dimensions of 1000 1000 m wasmade The mine effective factors in high concentration of As are black shall formationand erosion of igneous rock formation of Karkas mountains branches Agricultural andindustrial activities are probably effective factors causing increase the V concentration inthe region Metallic industry near Mobarakeh area is effective factor on highconcentration of Se in soil of this area Direction of dominant wind have affected inspread of Vanadium and Selenium
استاد راهنما :
مجيد افيوني، نادر فتحيان پور
استاد مشاور :
محمود كلباسي
استاد داور :
حسين شريعتمداري، جهانگير عابدي كوپايي
