摘要
采用随机抽样方法对山东泰山普照寺-红门附近的侧柏林天然下种更新特性进行了研究。结果表明:山坡中部苗木45.5株/m2,山坡上部和下部分别为36株/m2和33.7株/m2;厚土层上的更新苗总干重比薄土层上的增长60.83%,苗木高度增长6.60%;单株侧柏母树落种量3.6万粒,苗木存活数46.38株。侧柏天然更新苗的年存活率为0.128 8%。天然下种更新苗的生长与立地条件有关,更新苗株数与其生长地的微环境有关。
By random sampling, the regeneration characteristics of the natural seedlings of P. orientalis were studied at the Puzhao Temple-Hongmen in Mountain Tai of Shandong province in this paper. The results showed that the number of seedlings reached to 45.5 per m^2 in the middle hillside, while in the upper and lower hillside it was 36 and 33.7 per m^2 respectively. The total dry weight and the height of regeneration seedlings in the thick soils were increased by 60. 83% and 6. 60% compared with that in the thin soils. The annual average dropped seeds of individual P. orientalis parent tree were 36 000 and the amount of survival seedlings was 46.38, only 0. 128 8% of survive rate. The number of natural regeneration P. orientalis seedlings and its growth were related to the site conditions and the local microenvironment.
出处
《林业科技开发》
2009年第1期52-54,共3页
China Forestry Science and Technology
基金
山东省农业良种工程项目“优良抗逆、专用林木品种选育”(编号:200599,200690)
关键词
侧柏
天然更新苗
生长特性
Platycladus orientalis
Natural regeneration seedling
Growth characteristics
