摘要
通过整地与栽植深度对林木生物量影响的分析研究,结果表明:大工程穴状整地(穴径100 cm、深60、80、100 cm)较一般小穴整地(穴径30 cm、深30 cm)之5年生林木径生长量分别提高7%、9.7%和11.3%;高生长量分别提高3.4%、7%和9.6%;林木根量可增加78.2%;栽植深度以40～50 cm为宜,这有助于降低生产成本.
The effect of soil preparation and planting depth on growth of stand was analyzed in this paper.Results showed that radial increment of 5 years stand of soil preparation in hole of big project (hole diameter was 100 cm,hole depth were 60,80,100 cm) increased 7%,9.7% and 11.3% respectively than that of soil preparation in small hole(hole diameter was 30cm,hole depth was 30 cm).Height accretion increased 3.4%,7% and 11.3% respectively.Amount of lateral root of stand could increase 78.2%.The optimal planting depth was 40~50 cm and it was conductive to minimize costs of production.
出处
《防护林科技》
2005年第3期30-31,共2页
Protection Forest Science and Technology
关键词
整地深度
栽植深度
林木生长量
soil preparation
planting depth
growth of stand
