辽东地区高羊茅和早熟禾公路护坡特性研究  

Study on Slope Protection Characteristics of Festuca elata and Bluegrass Highways in Eastern Liaoning Province

作　　者：韩超 Han Chao(Liaoning Forestry Investigation,Planning and Monitoring Institute,Shenyang 110122,Liaoning,China)

机构地区：[1]辽宁省林业调查规划监测院,辽宁沈阳110122

出　　处：《绿色科技》2024年第4期131-136,共6页Journal of Green Science and Technology

摘　　要：中国公路迅猛发展,开发出的边坡需要种植相应的草种防止水土流失。通过对高羊茅和早熟禾的盖度、生长量、抗旱性、抗瘠薄性、土体崩解性、根系生物量和滞尘量来对草种的护坡特性进行试验分析。两个草种的盖度8-9月份分别达到最大值98%和99%,生长量在70~100 d达到最大值,抗旱性和抗瘠薄性均较强,根系总生物量分别为84.06 g和52.96 g,滞尘量和土体抗崩解性高羊茅优于早熟禾。两个草种盖度、生长量、根系生物量和根系生物量对水土保持起到了明显的作用,其抗旱性和抗瘠薄性使得草种能够更易栽植于边坡,滞尘特性能够明显改善周围空气质量。草本植物护坡具有明显的优势,边坡防护应尽可能选用两种草本植物护坡,单一草本植物护坡选用高羊茅更为适合。With the rapid development of highways in China,the developed slopes need the corresponding grass seed to prevent soil erosion and environmental protection.In this paper,the slope protection characteristics of Festuca elata and bluegrass were analyzed through the coverage,growth amount,drought resistance,barren resistance,soil disintegration,root biomass and dust retention.The maximum coverage of the two grasses was 98%and 99%from August to September,and the maximum growth rate was 70~100 d.The drought resistance and barren resistance were both strong,and the total root biomass was 84.06g and 52.96g,respectively.The dust retention and soil collapse resistance of the Festuca elata were better than that of bluegrass.The coverage,growth,root biomass and root biomass of the two grasses play an obvious role in soil and water conservation.Their drought resistance and barren resistance make the grasses more easily planted on the slope,and the dust retention characteristics can significantly improve the surrounding air quality.Herbaceous slope protection has obvious advantages.Slope protection should be as far as possible to choose two kinds of herb slope protection;single herb slope protection should choose Festuca elata more suitable.

关 键 词：公路边坡 高羊茅 早熟禾 护坡特性 

分 类 号：P642[天文地球—工程地质学]