西南喀斯特地区构树生态经营技术体系初析  

Analysis on Ecological Management Techniques for Broussonetia papyrifera in the Southwest Karst Region

作　　者：魏媛[1,2] 喻理飞[2] 

机构地区：[1]贵州财经学院资源与环境管理学院,贵州贵阳550004 [2]贵州大学林学院,贵州贵阳550025

出　　处：《浙江林业科技》2010年第3期29-33,共5页Journal of Zhejiang Forestry Science and Technology

基　　金：国家"十一五"科技支撑计划项目"喀斯特高原生态综合整治技术与示范"(2006BAC01A09);国家"十一五"科技支撑计划项目"林业生态建设关键技术研究"(2006BAD03A1006);国家重点基础研究发展规划项目(973项目)"喀斯特生物适应对策及物种优化配置"(2006CB403206)资助

摘　　要：提出西南喀斯特地区构树采种、育苗、造林以及枝、皮、叶的生态经营技术：采种应选10~15年生以上健壮无病虫植株作母树,8-9月果实成熟时采收;种子成活率与贮藏方式和时间相关,宜随采随播;播种应保持土壤水势在0~0.4 MPa;构树为喜光树种,造林地宜选择阳坡裸地,整地造林在秋末冬初苗木休眠萌动前进行,坑宽×深40 cm×40 cm,株行距1.2 m×1.3 m;构树叶采集,一年中在4月和8月用剪截的方法采集所有成熟叶片,每月2次;构树皮经营时,采用去顶芽的物理干扰方式或使用50 mg/L的6BA喷洒芽,能使构树芽种群数量大大增加,进而获得大量的枝,然后每两年进行一次全伐,或者一年一次,选择直径大于1 cm的进行择伐。Analysis resulted ecological management techniques for branches,barks and leaves of Broussonetia papyrifera in the southwest Karst region.10-15-year healthy mother trees were better for seed collection and sowing soon later on August and September.Water stress of the nursery was better at 0-0.4Mpa and plantation at sunny slope by the end of autumn and early winter.Leaf collection was conducted twice respectively on April and August.Removal apical bud or spraying 50mg/L of 6BA was implemented for more barks.Clear cutting was once two years,or selection cutting once a year.

关 键 词：构树 苗木 构件种群 生态特征 经营技术 

分 类 号：S750[农业科学—森林经理学]