摘要
盆栽条件下,将2种保水剂黑金子和旱露植宝分别以质量比0.4%、0.6%及0.8%的用量应用于铁尾矿植物(香葱)复垦中,研究其对于植物(香葱)生长及铁尾矿性质的影响。结果表明:香葱在铁尾矿中培养30 d后,黑金子保水剂处理下香葱根系干重依次比对照增加了30.00%、25.00%及-10.00%,0.4%和0.6%处理与对照之间差异显著(P<0.05)。旱露植宝处理下的根系干重则比对照依次增加了17.94%、16.18%及6.91%,且0.4%处理的单株香葱的总干重最大,差异显著(P<0.05)。2种保水剂可以有效提高铁尾矿的含水率和总孔隙度,降低铁尾矿容重。总之,在铁尾矿植被复垦中保水剂黑金子可选择0.6%、旱露植宝选择0.4%的添加量效果最优。
Influences of two water retaining-agents on chives growth and iron tailing characteristics were tested by pot experiment under in greenhouse during iron tailing vegetation restoration. Three levels, 0.4%, 0.6% and 0.8%, were designed in experiment. Data showed that chives root dry weight with 0.4%, 0.6% and 0.8% Heijinzi water retaining-agent were significantly higher by 30.00%, 25.00% and-10.00% than control only containing iron tailing, respectively（P0.05）. Root dry weight of chives grown in iron tailing containing Hanluzhibao water retaining-agent were higher by 17.94 %, 16.18% and6.91% in sequence, respectively, and the difference at 0.4% and 0.6% levels were significant（P0.05）. The dry weight of plant with 0.4% Hanluzhibao water retaining-agent was the most one among treatments. Two water retaining-agents increased soil moisture content and total porosity, reduced soil bulk density. In short, 0.6% level of Heijinzi and 0.4% of Hluzhibao were choices for plant restoration of iron tailing.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2016年第2期143-147,共5页
Environmental Science & Technology
基金
河北省科技支撑计划(14234202D)
华北理工大学博士科研启动项目
关键词
保水剂
铁尾矿
香葱
容重
总孔隙度
water retaining-agent
iron tailing
chives
bulk density
total porosity
