矿井中水灌溉及土壤改良对早熟禾种子萌发和幼苗生长的影响  

Effects of Coal Mining Wastewater and Soil Amendments on Seed Germination and Seedling Growth of Kentucky Bluegrass

作　　者：闫利军[1] 米福贵[1] 郭郁频[2] 王晓龙[1] 郭跃武[1] 刘伟伟[1] 于洁[1] 

机构地区：[1]内蒙古农业大学生态环境学院,呼和浩特010019 [2]河北北方学院动物科技学院,河北张家口075000

出　　处：《农业环境科学学报》2014年第5期1016-1023,共8页Journal of Agro-Environment Science

基　　金：国家科技支撑项目(2011BAD17B05);中国神华集团科技公关项目(SHIL07443)

摘　　要：采用培养皿种子暴露试验方法,研究了草地早熟禾2个常用绿化草种——新歌来德和奖品在不同水质浇灌和不同土壤改良方式下(石膏改良、碳粉改良、污泥改良)的种子萌发及幼苗生长的反应。结果表明:矿井中水灌溉以及2∶1混合灌溉显著抑制了早熟禾种子的萌发和幼苗的生长,与矿井中水灌溉和2∶1混合灌溉相比,1∶1混合灌溉对早熟禾种子萌发和幼苗生长具有明显的促进作用;1∶1混合灌溉草种的发芽率、发芽势、发芽指数和种子活力指数与清水对照处理没有显著差异,2个品种根长、苗长与对照相比均有所增加,其中新歌来德的根伸长更为显著(P<0.05),增加了0.83 cm。说明矿井中水与清水1∶1混合浇灌是可行的。此外,土壤的几种改良方式在一定程度上对草种的萌发及其幼苗的生长有积极的作用。总的来说矿井中水与清水2∶1和1∶1混合灌溉土壤在石膏改良方式下效果最好。In laboratory, petri dish exposure test was adopted to study seed germination and seedling growth of two common Kentucky bluegrass, Nuglade and Award, as influenced by coal mining wastewater and different soil amendments （gypsum, coal powder and sewage sludge ）. Seed germination and seedling growth were negatively influenced by reclaimed mining wastewater and 2：1 mixture of wastewater and clean water, however, irrigation with 1：1 wastewater and clean water had no significant influence on germination percentage, germination tendency, germination index and seed vigor index, and promoted root length and shoot length, compared with the control. In amendment treatments, seed germination and seedling growth were best in gypsum irrigated with 2：1 and 1：1 mixture of reclaimed wastewater and clean water.

关 键 词：矿井中水 土壤改良 种子萌发 幼苗生长 

分 类 号：X703[环境科学与工程—环境工程]