林业科学
林業科學
임업과학
SCIENTIA SILVAE SINICAE
2001年
1期
141-144
,共4页
周志翔%高方彬%徐有明%庄尔奇%洪信谱
週誌翔%高方彬%徐有明%莊爾奇%洪信譜
주지상%고방빈%서유명%장이기%홍신보
马尾松%纸浆原料林%间伐强度%生长反应
馬尾鬆%紙漿原料林%間伐彊度%生長反應
마미송%지장원료림%간벌강도%생장반응
The growth responses of Gaozhou masson pine pulpwood to 4 thinning intensities were studied by comparative analysis.The results indicate d that,under the identical characteristics of soil profile and ground vegefation in different thinning intensities,the variations of DBH and height under branch have significant differences with the maximum accretion of DBH and the lowest a ccretion of height under branch in 1.5m×2.0m stand,while the average incr ements of tree height and crown diameter were not obviously different.The aboveg round biomass increments of 1.5m×1.5m and 1.5m×2.0m stands were higher than those of other stands by thinning within 3 years.Under the comprehe nsive survey of the growth responses of pulpwood to thinning intensity and the w ood property for papermaking,the proper density of Gaozhou masson pine pulpwood should be 1.5m×2.0m with 15 years cutting period of return on hilly land of central Hubei Province.
