摘要
通过对位于广西南宁市北郊的尾巨桉人工林进行生长特性研究。结果表明,尾巨桉人工林林分胸径、树高和蓄积量均随着林龄的增长而明显增加,其中0.5、1.5、2.5、3.5和4.5年生尾巨桉人工林林分蓄积量分别达到2.02、45.59、98.87、134.58和152.57 m3/hm2,表现出早期快速生长的特性。随着林龄的增加,尾巨桉人工林树高、胸径、蓄积的总生长量并没有出现下降的趋势,但其连年生长量已开始出现较明显的下降现象。
The growth charateristics of Eucalyptus urophylla×E.grandis plantation were studied in northern suburb of Nanning city in Guangxi.The results showed that the stand DBH,height and volume of E.urophylla×E.grandis plantation significantly increased with increasing stand age.The stand volume of E.urophylla×E.grandis plantation of 1.5,2.5,3.5 and 4.5 years old were 2.02,45.59,98.87,134.58 and 152.57 m3/hm2 respectively,showing the characteristic of early rapid growth.With increasing of stand age,the total increment of height,DBH and volume of E.urophylla×E.grandis plantation did not decline,but their annual increment had an obviously decreasing trend.
出处
《林业科技开发》
2011年第6期68-70,共3页
China Forestry Science and Technology
基金
国家自然科学基金项目(编号:31160152)
广西自然科学基金项目(编号:桂科自0640018)
广西大学实验室建设与实验教学项目(编号:20111602)
关键词
尾巨桉
人工林
生长特性
Eucalyptus urophylla×E.grandis
plantation
growth charateristic
