摘要
杨树林分所发生的病虫害,不仅影响木材产量和质量,同时,还会降低林分的生态防护功能。通过对不同类型杨树林分的调查,结果表明:选择抗病虫害强的优良树种造林,及时防治或控制林分病虫害的发生和彻底清除林木各种病虫害的根源,持久保持林分良好卫生状况,是避免和减少杨树林分发生病虫害的重要措施。
Plant diseases and insect pess which damaed poplar not only affect timber production ＆ quality ,but also reduce ecological protection effect of stand .Different types of poplar were investigated .Result shows that ：selecting stronger pest-resistant fine species for reforestation ,preventing or controlling timely the occurrence of forest pests and completely remove various causes of forest pests ＆ diseases ,maintaining persistently good health of stand ,are important measures to avoid ＆ reduce occurrence of pests and diseases of poplar .
出处
《防护林科技》
2013年第11期41-42,共2页
Protection Forest Science and Technology
关键词
杨树林分
病虫害
经济效益
生态效益
poplar stand
plant diseases and insect pests
economic benefit
ecological benefit
