摘要
在12a生密度为2505株/hm2杉木林和火力楠木下栽培红豆杉,经过6a的经营管理,其林木生长良好。调查结果显示:火力楠林下南方红豆杉平均树高、胸径、冠幅、枝条长度、枝下高,分别比杉木林下套种生长的南方红豆杉高6.70%、8.24%、10.11%、8.89%、19.35%;郁密度提高12.50%,单株材积增加25%;火力楠枝下枯枝落叶层比杉木林下厚,土壤养分含量火力楠林高于杉木林,有机质、全N、全P、全K、速效N、速效P、速效K,分别提高2.37%、2.72%、3.64%、5.71%、1.8%、2.32%、2.86%。
Born in 12 a density of 2505 plants/hm2 planting Taxus chinensis under cunninghamia lanceolata and firepower nanmu Lin. after 6a management, the trees grow well. Results showed： that fire nanmu stocking under the average tree height,diameter at breast height,crown breadth,branch length,under branch height,respectively,than the growth of the Chinese fir forests interplanting stocking high of 6.70%,8.24%,10.11%,8.89%,10.11%; Yu density increased by 12.50%,individual volume increased by 25%; Under fire nan branch litter layer thicker than the cedar forests,soil nutrient content is higher than that of Chinese fir forest fire nanmu, organic matter, total N, total P, total K, available N, available P,available K,respectively increased by 2.37%,2.72%,3.64%,2.72%,1.8%,2.32%,2.86%.
出处
《河北林业科技》
2016年第4期27-29,共3页
Journal of Hebei Forestry Science and Technology
关键词
杉木林
火力楠林
南方红豆杉
混交造林
生长效果
土壤养分
Chinese fir forest
Fire nanmu
Taxus chinensis var
mairei Mixed forests
Growth status
Soil nutrients
