ICS65.020.40 CCSB64 21 辽宁省地方标准 DB21/T3922—2024 杨树大径级用材林全周期复合经营技术规 程 Technicalregulationsforfull-cyclecompoundcultivationoflarge-diametertimber poplarforests 2024-01-30发布 2024-03-01实施 辽宁省市场监督管理局  发布 DB21/T3922—2024 I目次 前言..................................................................................II 1范围.................................................................................1 2规范性引用文件.......................................................................1 3术语和定义...........................................................................1 4大径材培育品种选择...................................................................2 5苗木选择.............................................................................2 6造林技术.............................................................................2 7全周期复合经营.......................................................................2 8林木及林地管理.......................................................................3 9病虫害防治...........................................................................3 10档案管理............................................................................3 附录A................................................................................4