森林采伐管理—森林成熟龄（森林资源经营管理）.pptx

PowerPointPres;PowerPointPres;PowerPointPres;PowerPointPres;（一）防护成熟;2.防护成熟的确定;PowerPointPres;PowerPointPres;PowerPointPres;PowerPointPres;PowerPointPres;（二）自然成熟;PowerPointPres;3.自然成熟的确定;PowerPointPres;PowerPointPres;PowerPointPres;PowerPointPres;（三）经济成熟;小结;PowerPointPres;PowerPointPres;PowerPointPres;PowerPointPres;（二）工艺成熟;PowerPointPres;PowerPointPres;PowerPointPres;2.工艺成熟与数量成熟的关系;云南松不同立地林分数量成熟龄与;第二、出现的条件不同;PowerPointPres;（1）材种规格;（2）立地条件;PowerPointPres;（1）生长过程表加材种出材量表;其查定因子及计算步骤：;落叶松出材量表（Ⅰ地位级）;PowerPointPres;PowerPointPres;（2）标准地法;用标准地法求工艺成熟龄的主要步;PowerPointPres;（3）目的直径法;PowerPointPres;树干生长过程图;PowerPointPres;PowerPointPres;PowerPointPres;PowerPointPres;1.森林成熟的概念;PowerPointPres;2.森林成熟的含义;PowerPointPres;4.研究森林成熟的意义;5.森林成熟的种类;PowerPointPres;PowerPointPres;PowerPointPres;（一）数量成熟;PowerPointPres;PowerPointPres;PowerPointPres;PowerPointPres;PowerPointPres;2.数量成熟的确定方法;PowerPointPres;PowerPointPres;伐倒林木区分求积示意图;杉木丰产林Ⅰ地位级生长过程表;问题：请问下列表湿地松的数量成;(1)树种特性;（2）确定范围;PowerPointPres;（3）立地条件;(4)林分起源;大兴安岭主要树种各龄级的主林木;PowerPointPres;（5）经营措施;4.数量成熟龄的意义;PowerPointPres;PowerPointPres;PowerPointPres;PowerPointPres;（三）经济林成熟;PowerPointPres;PowerPointPres;PowerPointPres;PowerPointPres;（四）竹林成熟;PowerPointPres;PowerPointPres;PowerPointPres;（1）标号法;（2）龄痕法;（3）相秆法;PowerPointPres;（五）更新成熟;PowerPointPres;PowerPointPres;PowerPointPres