摘要
研究了不同栽植密度对沙棘幼苗的苗高、地径、生物量以及热值的影响。结果表明,6种栽植密度下,沙棘幼苗的的苗高、地径、生物量、热值均表现出明显的差别。在栽植密度为75 cm×100 cm及100 cm×100 cm时沙棘幼苗的苗高、地径、生物量都高于其他密度;在密度为30 cm×30 cm时的苗高生长量、地径生长量、生物量最低。苗高最高达95.8 cm,最低为61.4 cm。地径最高达13.79 mm,最低为11.63 mm。生物量最高达163.36 g,最低为105.85 g;不同密度下,各器官热值大小变化规律基本一致,其大小顺序为叶>干>枝。同一密度不同器官间的热值差异显著,不同密度之间相同器官热值差异较小。
Field experiments were carried out to investigate the influences of different planting densities on the plant height and the ground diameter and the biomass and the gross caloric value of Hippophae rhamnoides seedlings.The results showed that there were significant differences in plant height,ground diameter and biomass and gross caloric value between plant densities（P0.05）.The average plant height,ground diameter and biomass in the planting densities of 75 cm×100 cm and 100 cm×100 cm were higher than in other planting densities,while they were the lowest in plant density of 30 cm×30 cm in six plant densities.The highest height of H.rhamnoides seedlings could reach 95.8 cm,and the lowest was 61.4 cm.The highest biomass reached 163.36 g,the lowest was 105.85 g.The gross calorific value of various organs changed same in six planting densities with the order of leafstembranch.There were significant differences among the different organs in the same density,while there were no significant differences among the same organ of various densities.
出处
《河北林果研究》
2011年第1期1-5,共5页
Hebei Journal of Forestry and Orchard Research
基金
高等学校科技创新工程重大项目培育资金(708007)
十一五林业科技支撑计划专题刺槐等能源林培育技术(2006BAD18B0103)
关键词
沙棘
密度
苗高
地径
生物量
热值
Hippophae rhamnoides
density
plant height
ground diameter
biomass
gross caloric value
