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当前位置: 首页 > 文章 > 湿地松纸浆原料林密度控制与管理技术研究 中南林业科技大学学报 2009,29 (3) 45-48
Position: Home > Articles > Density Control of Slash-pine Pulpwood Forest and Its Management Journal of Central South University of Forestry & Technology 2009,29 (3) 45-48

湿地松纸浆原料林密度控制与管理技术研究

作  者：
童方平;徐艳平;龙应忠;宋庆安;易霭琴
单  位：
湖南省林业科学院
关键词：
密度控制;间伐;纸浆材;湿地松
摘  要：
为探索湿地松优质高产纸浆原料林密度控制与管理技术,进行了不同初植密度造林与间伐试验,试验结果表明:8a生、12a生密度试验林不同密度林分胸径、树高、蓄积量和总产量有极显著差异,8a生密度试验林不同密度林分木材性有极显著差异.林分在8a生时,平均树高生长效应是林分越密树高越高,林分平均胸径生长效应是林分密度越小胸径越大,蓄积量的生长效应是林分越密蓄积越大,木材材性是以中等林分密度质量最好.营造湿地松高产优质纸浆原料林适宜初植模式为2 m×2 m、2 m×2.5 m,即初植密度分别为2 505株/hm2和1995株/hm2,此时2 505株/hm2林分按下层间伐方式间伐25%、1995株/hm2林分按下层间伐方式间伐20%后4 a(林分年龄为12 a),这二种密度林分蓄积分别为224.08 m3.hm-2和206.64 m3.hm-2,蓄积加间伐材材积的总产量分别为244.56 m3.hm-2和218.72 m3.hm-2.为培育出质量和产量兼优的湿地松纸浆原料林,当林分生长到8 a生时,应及时地进行一次抚育间伐,间伐强度为20%~25%.
译  名：
Density Control of Slash-pine Pulpwood Forest and Its Management
作  者：
TONG Fang-ping,XU Yan-ping,LONG Ying-zhong,SONG Qing-an,YI Ai-qin(Hunan Forestry Academy,Changsha 410004,Hunan,China)
关键词：
density control;thinning;pulpwood;slash pine
摘  要：
An experiment was conducted on different types of thinning and planting density to explore a density control over slash-pine pulpwood forest and its management technology.Results show that there are significant differences in breast-diameter,height,volume and total yield with 8-year-old and 12-year-old stands, and obvious differences in wood property with 8-year-old stands of different densities;and that the growth of height,breast-diameter,volume and wood property of 8-year-old corresponds to stand density: the more trees,the higher the height;the less trees,the bigger the breast-diameter;the more trees,the greater the volume,and the density of a medium size,the best the property.Results also show that the suitable initial planting space is 2 m×2 m and 2 m×2.5 m;so the planting density is 2 505 trees /hm2 and 1995 trees /hm2;and that after 4 years of thinning,when 2 505 treess/hm2 stand undergoes a reduction of 25% and 1995 trees/hm2 stand does 20%,the volume reaches 224.08 m3·hm-2 and 206.64 m3·hm-2 and the total yield including the thinning volume reaches 244.56 m3·hm-2 and 218.72 m3·hm-2.In order to cultivate slash-pine pulpwood forest with good quality and high yield,8-year-old stands should undergo a thinning of 20 to 25% reduction.

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