The impact of Persian oak (Quercus brantii Lindl.) on soil characteristics in a declining forest

作     者：Reza Soleimani Ahmad Hosseini Reza Soleimani;Ahmad Hosseini

作者机构：Crop and Horticultural Science Research DepartmentIlam Agricultural and Natural Resources Research and Education CenterAREEOIlamIran Forests and Rangelands Research DepartmentIlam Agricultural and Natural Resources Research and Education CenterAREEOIlamIran 

出 版 物：《Journal of Forestry Research》 (林业研究（英文版）)

年 卷 期：2020年第31卷第6期

页      面：2359-2366页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

基　　金：The managing director of Ilam Agricultural and Natural Resources Research and Education Center is highly appreciated for their cooperation in conducting this investigation 

主　　题：Declining forest Persian oak Rhizosphere Soil horizons 

摘      要：Root activity has an important impact on soil development but we have little knowledge of the interaction of the root zone and soil genetic *** aim of this investigation was to study the interactions between soil chemical characteristics and root zone processes in a declining Persian oak forest(Quercus brantii Lindl.).A randomized complete block design was used to investigate the long-term eff ect of Persian oak on soil horizons,and the chemical and biological properties in two soil zones(under and outside the canopy).Results indicate that the rhizosphere zone had signifi cantly higher total organic carbon(TOC)than outside the canopy soil in the upper soil *** subsurface horizons,water-extractable organic carbon values were signifi cantly higher in rhizosphere than in non-rhizospheric *** biomass carbon(MBC)values in the rhizospheric zone decreased from the fi rst to the second *** MBC/TOC ratio indicated signifi-cant diff erences between the rhizosphere and soils outside of the canopy,with the exception of the subsurface *** the subsurface horizon of the rhizosphere,there was greater respiration of organic carbon(ΣCO 2/TOC)than in outside of canopy *** addition,root processes infl uenced pH,nitrogen fractions,and availability of phosphorus,potassium,iron,zinc and *** erences in soil characteristics between rhizospheric and non-rhizospheric zones were signifi cant in surface horizons due to higher root density than in deeper soil *** fi ndings indicate that Persian oak(Quercus brantii Lindl.)roots infl uenced the main soil chemical properties,even in calcareous soils.