摘要
采用盆栽试验法,以高寒地区常见植物羊草为供试材料,内蒙古阿荣旗至博克图段高速公路示范工程采用的厚层基质为基质原材料,对比研究不同配方基质在15℃、20℃、25℃恒温和室温条件下羊草的出苗及生长情况。结果表明:羊草的出苗率及平均株高均表现为随温度升高而增加的趋势,不同配方在4个温度水平下羊草平均出苗率为配方2>客土>配方3>配方1;平均株高整体上表现为配方2>配方1>配方3>客土,且温度越高,配方2平均株高与其他配方差距越明显。因此,配方2能显著增加植物出苗率及平均株高,是适应温度变化最优的基质配方,即客土与泥炭土的比例为4∶6的基质配方是高寒地区厚层基质护坡最理想的基质。
The seedling emergency rate and average plant height of Leymus chinensis which is the common plant in cold regions were observed by using apot experiment in greenhouse.The seeds of L.chinensis were sowed in different mixed media from a thick-layer matrix used in a demonstration project of highway from Arong Qi to Bork Chart in Inner Mongolia,and cultured at 15℃,20℃,25℃and room temperature,respectively.Results are as follows：the seedling emergency rate and average plant height of L.chinensis increase with temperature rise.The order of seedling emergency rate from high to low in different mixed medias is Mixed 2,Control,Mixed 3and Mixed 1（P0.05）,and average plant height is the sequences of Mixed 2Mixed 1Mixed 3Control（P0.05）.Furthermore,the difference between average plant height of Mixed2and others will be more significant when temperature increases,so Mixed 2or the media of the ratio of foreign-soils and peat soil（4∶6）can significantly increase seedling emergency rate and average plant height,and make plant better adapt to temperature change.In a word,the Mixed 2is optimal medium for slope protection in cold regions.
出处
《水土保持研究》
CSCD
北大核心
2013年第6期44-47,共4页
Research of Soil and Water Conservation
基金
西部交通建设科技项目(2009318000010)
关键词
控温
喷播基质
羊草
生长特征
set temperature
spraying sowing media
Leymus chinensis
growth characteristics
