Application of biocementation technique using Bacillus sphaericus for stabilization of soil surface and dust storm control

作     者：Davood NAMDAR-KHOJASTEH Masoud BAZGIR Seyed Abdollah HASHEMI BABAHEIDARI Akwasi B ASUMADU-SAKYI Davood NAMDAR-KHOJASTEH;Masoud BAZGIR;Seyed Abdollah HASHEMI BABAHEIDARI;Akwasi B ASUMADU-SAKYI

作者机构：Department of Soil ScienceFaculty of AgricultureShahed UniversityTehran ***Iran Department of Soil and Water EngineeringFaculty of AgricultureIlam UniversityIlam ***Iran Department of Plant ProtectionFaculty of AgricultureShahed UniversityTehran ***Iran International Laboratory for Air Quality and HealthSchool of ChemistryPhysics and Mechanical EngineeringQueensland University of TechnologyBrisbaneQueensland 4000Australia 

出 版 物：《Journal of Arid Land》 (干旱区科学（英文版）)

年 卷 期：2022年第14卷第5期

页      面：537-549页

核心收录：

学科分类：082802[工学-农业水土工程] 090707[农学-水土保持与荒漠化防治] 0907[农学-林学] 08[工学] 0828[工学-农业工程] 09[农学] 0815[工学-水利工程] 

基　　金：funded by an approved research project of the Shahed University,Iran(9710/97) the Vice President of Science and Technology–Iran National Science Foundation(INSF,97003753) 

主　　题：soil stabilization microbial cementation calcium carbonate bacteria penetration resistance 

摘      要：Dust emission and wind erosion are widespread phenomena in arid and semi-arid regions,which have far-reaching harmful effects to the *** study aimed to use microbial induced carbonate precipitation(MICP)method with Bacillus sphaericus to reduce soil losses that occur in a dust-producing area due to wind erosion in the Ilam Province,*** samples at the 0-30 cm depth were used and sterilized in an autoclave for 2 h at 121℃ and 103 *** 3 kg soils were weighed and poured in the 35 cm×35 cm×3 cm *** treatments included two levels of ***(0.0 and 0.5 OD),three levels of suspension volume(123,264,and 369 mL),two levels of urea-chloride cementation solution(0.0 and 0.5 M),and two levels of bacterial spray(once and twice spray).After 28 d,soil properties such as soil mass loss,penetration resistance,and aggregate stability were *** results showed a low soil mass loss(1 g)in F_(14)formulation(twice bacterial spray+264 mL suspension volume+without cementation solution)and a high soil mass loss(246 g)in F_(5) formulation(without bacteria+264 mL suspension volume+0.5 M cementation solution).The highest(42.55%)and the lowest(19.47%)aggregate stabilities were observed in F_(16)and F_(7)formulations,respectively,and the highest penetration resistance(3.328 kg/cm^(2))was observed in F_(18) *** to the final results,we recommended the formulation with twice bacterial spray,0.5 M cementation solution,and 269 mL suspension volume as the best combination for soil surface ***,this method is environmentally friendly because it has no adverse effects on soil,water,and plants,thus,it would be an efficient approach to stabilize soil surface.