A study on growth characteristics of Eucalyptus urophylla×E.grandis plantation

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.