3957

3735

كارشناسي ارشد

بيابان زدايي

اصفهان: دانشگاه صنعتي اصفهان، دانشكده منابع طبيعي

1386

ده، 113، [II]ص.: مصور، جدول، نمودار

ص.ع. به: فارسي و انگليسي

جمال الدين خواجه الدين، حميدرضا كريم زاده

عبدالرضا مهاجري

26/03/87

محمد رضا وهابي، رضا جعفري

مهندسي منابع طبيعي

ID3735

به فارسي و انگليسي: قابل رؤيت در نسخه ديجيتال

AbstractFrom a management point of view it is important to determine the effect of environmentalfactors especially soil on vegetation cover in desert regions In order to investigation ofspecies habitat of Halocnemum strobilaceum Tamarix pesserinoides and Limoniumiranicum was used ordination method in Sejzi region that located in east of Esfahan city asa critical region environmental problems in Esfahan province Study area was separated in6 sites on basis of mentioned species including 1 species habitat of Halocnemumstrobilaceum 2 weakened oriented habitat of species of Halocnemum strobilaceum 3 species habitat of Limonium iranicum 4 weakened oriented habitat of species ofLimonium iranicum 5 species habitat of Tamarix pesserinoides 6 bareland area as acontrol area For investigation of vegetation cover was used 1 hectare plots and wasmeasured density canopy cover root system and age of some species in all sites In orderto investigation of soil in mentioned sites was dug 9 profiles in all over of study area andwas measured 21 characteristics of physical and chemical of soil belongs to 45 samplessuch as pH ECe total soluble Ca2 and Mg2 Na K ESP Cl CO3 HCO3 CEC SO4 CaCO3 CaSO4 O M P3 b Sand Silt Clay and T N Data wasanalyzed by factor analysis method and then by ordination method using RDA techniqueand was achieved final relationships Using of extracted graphs of ordination method wasinvestigated interaction relationship between of important edaphic factors and studiedspecies habitat Results showed that some properties of soil such as CaSO4 clay silt salinity and alkalinity K and SO4 have most effect on habitat of Halocnemumstrobilaceum species and parameters such as O M total soluble Ca2 and Mg2 Na andHCO3 have most effect on habitat of Tamarix pesserinoides species too According tomentioned studied about of habitat property of Limonium iranicum was distinguished thatfactors such as CaCO3 CO3 salinity and alkalinity have most effect on habitat of thisspecies Key words Habitat soil properties ordination method factor analysis Halocnemumstrobilaceum Limonium iranicum Tamarix pesserinoides Sejzi Esfahan Desert regions

جمال الدين خواجه الدين، حميدرضا كريم زاده

عبدالرضا مهاجري

محمد رضا وهابي، رضا جعفري