【摘要】 根据历史资料、野外调查数据及栽培试验,对野生洽草的生态适应特性进行了研究,对其利用现状进行了分析.结果表明:洽草(Koeleria cristata)的生态适应范围十分广泛,几乎遍及内蒙古除荒漠、草原化荒漠和寒温带针叶林区以外的其它各植物州.洽草生态适应性较强,可以适应腐殖质含量1~17%,C/N5~20,pH5.6~9.0的土壤;要求大气年降水150~500mm,≥10℃活动积温1600~3200的水热条件;海拔分布范围为820 m~3000m;具有良好的耐寒性.洽草是典型草原中优良的补充牧草,能够有效地补充牲畜对微量元素Fe、Ca、Mn等的需求.野生洽草叶型、叶色独特,具有春季返青早、成坪快、绿期长、草群低矮、密丛生、分蘖能力强、春秋两季坪用价值高等优良的地被植物特性,作为干旱半干旱地区城市雨养草坪品种具有巨大的开发潜力.更多还原

【Abstract】 Based on Historical data,field survey data and cultivated test,studied the ecological adaptability characters of Koeleria cristata,analyzed its present situation of research. The results showed that: the ecological adaptability range of K. cristata is broad,it can distribute in the plant state except desert,steppe desert and cold temperate coniferous forest region in inner Mongolia. K. cristata can live in the soil with content of humus 1~17%,C/N5~20,pH5.6~9.0, require the precipitation of atmosphere 150~500mm each year,≥10℃active accumulated temperature1600~3200,it can endure the cold well,its range of height is 820 m ~3000m.As a supplementary forage grass,K. cristata can effectively supply Fe,Ca,Mn to livestock.K. cristata has its own special leaf model and leaf color,it has well characteristics of groundcover plant with re-green early in spring,fast covering the base,long greening period,low turf clump, thick clump,strong ability of tillering,high lawn-value in spring and fall,it can be exploited as lawn which only live on rain in the arid and semi-arid region.更多还原