甘肃小陇山次生林经营技术

Management Techniques on Secondary Forest in Xiaolong Mountains in Gansu Province

小陇山林区是我国主要的次生林分布区,次生林是小陇山森林资源的主体,可持续经营直接关系区域林业可持续发展。小陇山次生林从经营角度划分为针阔混交林和栎类阔叶混交林两大类,针阔混交林占75%、栎类阔叶混交林占25%;次生林经营需要从技术与管理层面上建立森林经营管理技术操作系统和森林经营管理支撑系统,采用可抚育(间伐、择伐)、改造、造林、采伐、封育、封禁等综合经营技术措施,抚育经营的技术要点包括林分调查,抚育时间、方式、强度、目标树确定,以及抚育采伐技术等,最根本的技术是实现由次生林经营向次生林发展转变。

The secondary forest is the main forest resources of the Xiaolong Mountains, one of the most important areas of secondary forest distribution in China, and sustainability of secondary forest has a direct relationship with the sustainable development of forestry in the Xiaolong Mountains. From the perspective of management, the secondary forest in Xiaolong Mountains can be divided into two kinds; mixture of coniferous ＆ broad-leaved forest accounting for 75 %. mixture of oak and broad - leaved forest accounting for 25 %. Management of secondary forest needs to be based on the operation system and support system. Comprehensive technical measures, such as tending （include thinning and selection cutting）, reforming, planting,cutting and closure for regeneration. The main points of tending management included stand surveying, time for tending, approach of tending, intensity, determination of crop trees and cutting technique. The most important was to realize the transformation from secondary forest management to secondary forest development.