贵州16种野生草本植物坪用性状评价

对贵州不同生态条件下的16种野生草本植物进行引种试验。通过对其生育期、生长特性、适应性和抗逆性等性状观测,初步筛选出综合性状较好,适宜高等级公路生物护坡建植的野生植物9种。其中：百喜草、扁穗牛鞭草、高羊茅、白三叶4种草本植物,具有再生性、覆盖能力、适应性和抗逆性较强的特点,可作为高等级公路生物护坡的优选草种;假俭草、狗牙根、毛花雀稗等5种野生植物,具有青绿期长,侵占性和抗逆性较强的特点,可作为高等级公路护坡的一般草种。

Characteristic evaluation for 16 naturally found herbaceous plants in Guizhou

Sixteen herbaceous plants from different ecological environments in Guizhou were collected, and their growth and development period, growth characteristics, adaptability and stress resistance etc. evaluated. It was found that Paspalum notatum, Hemarthria compressa, Festuca arundinacea and Trifolium repens were particularly suitable for biological protection of highway slopes, because they had quite strong regeneration performance, covering ability, adaptability, and stress resistance. Five other varieties including Eremochloa ophiuroides, Cynodon dactylon and Paspalum dilatatum were also suitable for biological protection of highway slopes with quite strong stress resistance and invasive activity, and long green periods.