摘要
采用室内盆栽试验研究水基废弃钻井泥浆、岩屑等钻井废弃物配合腐植酸、木本泥炭等外源有机物质在风沙土中的施用效果,并分析其对菠菜生长的影响,以期为钻井废弃物资源化利用和风沙土改良提供参考。共设3组室内盆栽试验:基础组共4个处理,以风沙土为对照(CK),将风沙土与岩屑按质量比1∶1混合后分别添加0、2%、4%含量水基废弃钻井泥浆(干基);基础组处理分别添加1%腐植酸、1%腐植酸+3%木本泥炭混合物,作为腐植酸组和木本泥炭组。结果表明:基础组中,与CK相比,施用钻井废弃物显著增加了土壤有机质含量,pH和电导率上升,2%含量水基废弃钻井泥浆显著促进菠菜生长。腐植酸和木本泥炭使土壤pH降低,有机质含量显著增加,电导率上升,腐植酸组株高、总叶面积、鲜重、干重等植物生长指标均高于基础组中对应处理,混合添加腐植酸和木本泥炭后对植物生长促进效果不显著。最佳处理为腐植酸组添加2%含量水基废弃钻井泥浆,土壤有机质含量为13.1 g·kg^(-1),播种40 d后菠菜株高、总叶面积、鲜重和干重分别比CK显著增加49.7%、93.4%、83.3%、34.6%。钻井废弃物配合有机物质施用可以显著增加土壤有机质含量,促进菠菜生长,风沙土+岩屑+水基废弃钻井泥浆(2%)+腐植酸(1%)是最佳组合模式。
An indoor potted experiment was carried out to study the application effects of water-based waste drilling mud(WBDM)and drill cuttings combined with humic acid and woody peat in aeolian sandy soil.We analyze their effects on the growth of spinach,in order to provide a reference for the resource utilization of drilling waste and the improvement of aeolian sandy soil.A total of three individual experiments were set up:4 treatments in the basic group,taking aeolian sandy soil as the control(CK),mixing aeolian sandy soil and drill cuttings at a mass ratio of 1:1,then added with 0,2%,and 4%WBDM(dry basis)respectively.The basic group treatment was added with 1%humic acid,1%humic acid+3%woody peat mixture respectively,as the humic acid group and woody peat group.The results showed that in the basic group,drilling waste application significantly increased soil organic matter content(SOM),pH and electrical conductivity,the 2%WBDM significantly promoted the growth of spinach.Humic acid and woody peat reduced soil pH and increased SOM content and electrical conductivity.Plant growth indicators such as plant height,total leaf area,fresh weight and dry weight of the humic acid group were higher than the corresponding treatments in the basic group.The mixed addition of humic acid and woody peat did not affect plant growth.The treatment with the best performance was to add 2%WBDM to the humic acid group,and the SOM was 13.1 g·kg^(-1),spinach’s plant height,total leaf area,fresh weight and dry weight significantly increased by 49.7%,93.4%,83.3%,and 34.6%than CK after 40 days of sowing.The application of drilling waste with organic matter could significantly increase SOM content and promote spinach growth.Aeolian sandy soil+drill cuttings+WBDM(2%)+humic acid(1%)was the best combination mode.
作者
王茜
樊军
周谷
付威
WANG Xi;FAN Jun;ZHOU Gu;FU Wei(College of Urban and Environment Science,Northwest University,Xi'an 710127,China;State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,Northwest A&F University,Yangling 712100,Shaanxi,China)
出处
《应用生态学报》
CAS
CSCD
北大核心
2022年第4期887-893,共7页
Chinese Journal of Applied Ecology
基金
陕西省重点研发计划项目(2020NY-158)
榆林市科技计划项目(2019-131)资助。
关键词
风沙土
水基废弃钻井泥浆
岩屑
腐植酸
木本泥炭
aeolian sandy soil
water-based waste drilling mud
drill cuttings
humic acid
woody peat
