【摘要】 林牧复合经营突破了单一种植桉树的传统模式,实现了林业、牧业和草业有机结合。根据林牧复合生态系统模式的理论,充分利用林下空间等资源,发挥生物的资源潜能,在桉树林下种植适宜牧草,促进了桉树的生长,又缓解种植桉树带来的环境弊端。通过桉树林下种植的4种牧草的株高、叶长、叶宽、叶面积、存活率、生长率,茎叶的鲜质量和干质量等指标并统计对比,结果表明,苏丹草在株高、叶长、叶面积、存活率、生长率、茎叶的鲜质量和干质量指标中占明显优势;在4种牧草8项指标的显著性分析中,不同的牧草品种对各项指标皆产生了显著影响;据以牧草的8项指标为变量的聚类分析,紫花苜蓿不适合种植,黑麦草和高丹草为基本适合种植,苏丹草最适合种植。更多还原

【Abstract】 The silvopastoral system breaks the traditional pattern of Sorghum sudanense monocultureto to achieve the innovative models of combining the forestry, animal husbandry and prataculture organically. According to the principle and theory of the silvopastoral system and in order to maximize the ecological,economic and social benefits,making full use of various resources and forest space, playing the potential biological resources and choosing the appropriate grass to plant under Sorghum sudanense in promoting the growth of Sorghum sudanense and easing the environmental drawbacks.The height of the plant, the length,width and area of the leaf, the survival rate, the growth rate and the leaf fresh and dry weight are as indicators to analyze in order to compare Sorghum sudanense, Perennial ryegrass, Sorghum bicolor × Sorghum sudanense and Medicago sativa and choose the most optimal pasture of growing in Eucalyptus robusta.Result shows that Sorghum sudanense is dominant in plant height, leaf length, leaf area, survival rate, growth rate, stem and leaf fresh weight and dry weight;in the significant analysis of the eight indicators of forages,different forage species on indicators have significant effects.Using the eight in dicators of forage as varibables, Medicago sativa is not suitable for being planted, Lolium perenne and Sorghum-sudangrass hybrid( Sorghum bicolor × Sorghum sudanense) is suitable for being planted, Sorghum sudanense is the most suitable for being planted.更多还原