聚丙烯酰胺与瓜尔胶复配改良水电站剥离表土用于渣场生态修复的现场效果研究

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关键词：水电站；渣场；聚丙烯酰胺（PAM）；瓜尔胶（GG）

中图分类号：X773 文献标识码：A 文章编号：1008-9500（2025）07-0193-04

DOI：10.3969/j.issn.1008-9500.2025.07.057

Study on the Site Effect of Using PAM and GG Compound to Improve the Stripping Surface Soil of Hydropower Stations for Ecological Restoration of Slag Yards

LIUZhendong'，LIANGJuntaol，LIWenbo’，WUYuxi²，CAOZhihua² （1.Xizang Datang Zhala Hydropower Development Co.，Ltd.，Changdu854Oo0， China; 2.BeijingNormal University，Beijing 1OO875，China）

Abstract：Inorder tosolvetheproblemsofloosesurface structureandlackof nutrients intheslagyardof hydropower stations，this study took the slag yardof Zhala Hydropower Stationasanexample，and thecombinationof anionic Polyacrylamide（PAM）andGuarGum（GG）was used toamend the stripped topsoilof Zhala HydropowerStationat150and 300g/m2 ，respectively.The slag yard surface was covered with theamended topsoil.The organic fertilizer was thenadded at 1.5kg/m2 .Thenutrientretentionabilityof thereconstructedslag yard topsoil was investigated，togetherwith itsinfluence onthegrowthofnative plants.Theresultsshowedthatthe matrix constructedbythecombinationofPAMandGGincreased thecontentofrganicmater，totalrogen，totalphosphorusndtotalotassuminthetopsoil.Teutrientcoetofthe topsoilitheearlyandlatestagesofsoilcoverwasmuchhigherthanthebackgroundvalue，anditalsohadasignificant improvementefectontheavailablenitrogen，phosphorus，andpotassiumcontent.Thereconstructionoftopsoil intheslag yardhaspromotedthegrowthofplantssuchstallescue，alkaligass，arlymaturinggrasndstargrass，andiased vegetation coverage.

Keywords： hydropower station; slag yard; Polyacrylamide （PAM）; Guar Gum （GG）

随着我国基础设施建设的快速发展，生产建设项目中产生的大量弃土弃渣已成为一个不容忽视的环境问题。（剩余4374字）