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作 者:王楠[1]
机构地区:[1]三亚学院艺术学院
出 处:《林业科技情报》2015年第2期27-29,共3页Forestry Science and Technology Information
摘 要:为了更好的了解影响树木生长的因素,本文以哈尔滨实验林场内的蒙古栎、水曲柳和胡桃楸为研究对象,研究了胸径和蓄积量的林龄差异和树种差异。结果表明:3个树种胸径和单位面积蓄积量均随着树龄的增大而增大,胸径、胸径增长率和单位面积蓄积量增长率均表现为胡桃楸最大、蒙古栎最小的种间差异。这是树木自身生物学特性和外界生长环境共同作用的结果。To understand the factors influencing tree growth,the DBH and stand volume were examined for three temperate forest species in Haerbin experimental forest farm. The species were mongolian oak( Quercus mongolica),ash( Fraxinus mandshurica) and walnut( Juglans mandshurica). The results showed that DBH and stand volume per area for three species all increased with increasing stand age. The walnut trees had the highest DBH,increasing rates of DBH and stand volume per area than other two species. These findings suggested that the growth of these temperate trees controlled by both inherent biological characteristics and external environment.
分 类 号:S758.1[农业科学—森林经理学]
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