煤矸石主要物理特性及在栽培基质中应用的可行性分析  

Major physical characteristics of gangue and feasible analysis for the application in cultivation matrix

作　　者：唐升引 蒋永吉 陈静[1] 王鑫鹏[1] 王益权[1] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨凌712100

出　　处：《干旱地区农业研究》2014年第3期209-213,共5页Agricultural Research in the Arid Areas

基　　金：大学生创新创业训练项目"煤矸石在人造土壤与低产土壤改良中应用研究"(1210712067)

摘　　要：针对煤矿区煤矸石堆积,污染环境,堵塞河道,易造成地质安全等问题,谋求将煤矸石用于栽培基质的主要物料和低产土壤的改良剂。基于煤矸石在栽培基质中应用的可行性为主要研究目标,分别以采自陕西彬县、神木煤矸石为材料,研究了煤矸石的比重、斥水特性及改良措施与效果,结果表明:彬县和神木两地的煤矸石比重分别为1.89g·cm-3和2.06g·cm-3;神木煤矸石具有轻微斥水性,掺混6.31%以上的农田耕层土壤就能达到消除斥水性的目的;而彬县煤矸石具有严重斥水性,需用0.2%的湿润剂溶液喷洒煤矸石,就能达到消除斥水性的障碍,且效果较为持久。由此得出结论是,就煤矸石的物理性状而言,尽管存在着不同的斥水性障碍,但通过一定的改良,就可具备在栽培基质中使用的可行性。： In view of the problems of gangue stacking ,environmental pollution ,blocking rivers and causing geologi-cal safety ,explored the gangue for the main material of cultivation matrix and low-yield soil amendment .Based on the main research goal of the feasibility for gangue being used in cultivation matrix ,collected gangue from Binxian and Shen-mu as for materials , has researched the specific gravity , water repellency , improving technology and effect for the gangue .The results showed that ：The specific gravity were 1 .89 g·cm^-3 and 2 .06 g·cm^-3 ,respectively ,for the gangue from Binxian and Shenmu .The Shenmu gangue had slight water repellency ,and the water repellency could be eliminated by mixed more than 6 .31% cultivated soil .However ,the Binxian gangue had serious water repellency ,and needed mix-ing 0 .2% wetting agent solution ,the water-repellence could be eliminated ,also had a longed lasting improving effect . Accordingly ,as for the physical characteristics of gangue ,it had feasibility to use gangue in the cultivation matrix by a certain improvement although it had various degree of water repellency .

关 键 词：煤矸石 比重 斥水性 栽培基质 可行性 

分 类 号：S316[农业科学—作物栽培与耕作技术] X752[农业科学—农艺学]