【摘要】 在福建三明对临近的、土壤肥力相近的33年生福建柏与杉木人工纯林生长特性进行比较分析,结果表明:密度、平均胸径、平均高、林分蓄积量福建柏人工林分别为975株/hm2,21.6cm,21.37m,420.7m3/hm2;而杉木则分别为1117株/hm2,23.3cm,21.89m,488.7m3/hm2.33年生福建柏人工林的生产力低于杉木.福建柏在幼林阶段生长慢,但在成林阶段连年生长量超过杉木.福建柏10年生前树高、胸径、单株材积的总生长量均显著小于杉木,10年生后连年生长量逐渐增加,树高、胸径和材积连年生长量分别在15,18,19年生时超过杉木,33年生时树高、胸径和材积连年生长量分别是杉木的1.20,1.35和1.50倍.更多还原

【Abstract】 Growth processes of 33-year-old Cunninghamia lanceolata plantation and its neighboring plantation of Fokienia hodginsii with the same age and similar soil fertility were studied in Sanming, Fujian, China. The results showed that tree density, mean diameter at breast height (DBH), mean tree height and growing stock were 975 stem/hm~2, 21.6 cm, 21.37 m and 420.7 m~3/hm~2, respectively, for the F.hodginsii plantation and 1 117 stem/hm~2, (23.3 cm,)21.89 m and 488.7 m~3/hm~2, respectively, for the Cunninghamia lanceolata plantation. The productivity of 33-year-old F. hodginsii plantation was lower than that of Cunninghamia lanceolataplantation. F. hodginsii plantation grew slower in the juvenile period, but faster in mature period than Cunninghamia lanceolata. The total increment of tree height, DBH and stem volume of F. hodginsii were remarkably lower than those of Cunninghamia lanceolata within the first 10 years of age. The current annual increment of each index of F. hodginsii plantation accelerated gradually after 10 years old, and its current annual increments of tree height, DBH and stem volume exceeded those of Cunninghamia lanceolata plantation at 15, 18 and 19 years old respectively, and were 1.20, 1.35 and (1.50) times greater, individually, than those of Chinese fir plantation by 33 years old.更多还原