After the main cutting and selective cutting of mature coniferous pure plantation stands, the afforestation effects of using the 2-year-old non-woven nutrient bag seedlings of Cyclobalanopsis glauca and Castanopsis carlesii under the canopy of 20 trees/mu（A）, 30 trees/mu（B） and 40 trees/mu（C） with different conservation densities were compared. The results of the 2-year growth survey showed that the survival rate, ground diameter, height and crown width of the intercropped Cyclobalanopsis carlesii and Castanopsis carlesii under the forests with different conservation densities were the highest in A. The average survival rate of afforestation is 96.4%.The average ground diameter of Cyclobalanopsis glauca is 2.21 cm; the average height is 177.7 cm, and the average crown width is 106.0 cm; The average ground diameter of Castanopsis carlesii is 2.07 cm; the average height is 224.6 cm, and the average crown diameter is 133.6 cm; The order of four indicators from high to low is A＞B＞C.

对宁化国有林场7年生杉木和10年生杉木进行了定株经营措施对比试验,结果表明:进行定株经营措施对杉木生长具有显著影响,有进行扩穴、修枝、施肥处理的样地,定株目标树和样地总的平均胸径生长、平均树高生长及蓄积量增长均优于对照样地,定株目标树平均胸径增长从高到低为A-2>A-1>对照,平均树高增长从高到低为A-1>A-2>对照,定株目标树蓄积量增长从高到低为A-1>A-2>对照.不同修枝强度对杉木生长具有显著影响,其中B-1处理(修枝30％)杉木平均胸径、平均树高、蓄积量增长最大,其次是B-2处理(修枝40％),B-3处理(修枝50)杉木增长最小,杉木平均胸径、平均树高、蓄积量增长从高到低依次是B-1>B-2>对照>B-3,说明适当修枝对杉木生长有促进作用,强度应控制在30％ ～40％ 之间为好.

采用一年生格氏栲无纺布营养袋苗进行了格氏栲与杉木行状混交造林试验,比较了不同坡向、坡位的格氏栲造林成活率及生长量.结果表明:不同坡向、坡位对格氏栲造林成活率及当年生长量的影响极为显著,阴坡和下坡的格氏栲造林成活率及当年生长量最高,其中:阴坡格氏栲的平均成活率、平均地径、平均高、平均冠幅分别达94.4％、1.07 cm、82.5 cm、56.1 cm,下坡的平均成活率、平均地径、平均高、平均冠幅分别88.0％、1.06 cm、82.0 cm、55.7 cm.

通过试验,研究了26个半枫荷优良家系造林在福建省宁化县的生长情况.结果表明:峡阳1号、井10号、上坪头A-1号、天23号、LC3号、天22号、井A-1号、H4号部分家系生长表现较好.这对半枫荷在福建省宁化县拓展栽培有重要的指导意义.

本文通过开展对比试验研究施基肥对杉木当年生长效果的影响.结果表明,施基肥对杉木当年生长具有极显著影响.与不施基肥相比,施基肥处理对杉木栽植当年的地径与树高生长、成活率都有极显著影响,其中施有机肥1.50 kg/穴处理的地径、树高生长情况最好,平均地径2.5 cm,平均树高145.0 cm,平均抽高98.3 cm;地径生长大小依次是处理A(施有机肥1.50 kg/穴)>处理B(施钙镁磷0.25 kg/穴)>处理C(施复合肥0.25 kg/穴)>对照(不施基肥),树高和抽高高低依次是处理A>处理C>处理B>对照,成活率是处理B最好,高低依次是处理B>处理C>处理A>对照.

精选优质的鳞苞锥种子进行沙藏,选择圃地,在种子的胚芽刚露头时直接点播到装好配置营养土的无纺布容器中进行了育苗技术试验,苗期加强水肥管理、除草与补苗、病虫害防治、炼苗等.结果 表明:鳞苞锥无纺布营养土容器苗当年出圃时平均苗高可达30 cm,平均地径0.3 cm,合格苗出圃率达80％,上山造林成活率可达95％以上.

Taking Ninghua State-Owned Forest Farm's Phyllostachys pubescens forest base as the research object,by six years of taking effective tending and culturing measures,the bamboo forest with small amount,unreasonable age structure,small average DBH,big bamboo coarse degree,and uneven distribution in forest changed into that with the structure of highyield forest used for bamboo shoots and bamboo,this paper summed up the most important Phyllostachys pubescens management measures were chopping hills and clearing sundry brushes and grass,reclamation,fertilization,age structure adjustment and pests control.