湖南杉木人工林近自然经营问题探讨  

Discussion on the near natural forestry business of Chinese fir plantation in Hunan Province

作　　者：许忠坤[1] 邓鹰鸿[2] 彭晖 

机构地区：[1]湖南省林业科学院,湖南长沙410004 [2]湖南省林业厅,湖南长沙410004 [3]湘西自治州林业勘测设计院,湖南吉首416000

出　　处：《湖南林业科技》2014年第1期117-120,共4页Hunan Forestry Science & Technology

基　　金：中德财政合作湖南小农户造林项目(BMZ-2002 65 702)

摘　　要：德国人工林在19世纪,与湖南杉木人工林有相似之处,采用单一树种营造大面积人工林,造成地力消耗很大,无法实现林木的可持续利用。本文从杉木经营历史,分析了现有栽培制度下的炼山、幼林抚育、轮伐期短、林分结构单一等现状所导致的杉木人工林生产力下降、林地地力衰退。本研究引进德国森林近自然经营理念及原则改造杉木人工林,分别对杉木幼林、中林、成林进行第1代目标树经营,为第2代目标树形成创造有利条件,使林地地力得到恢复,达到可持续经营的目的,同时获得较大经济效益。There are similarities with Hunan Chinese fir plantations in Germany in the 19th century, it was creating a large area of application of a single species plantations, and causing fertility consume large, impossible to achieve the sus- tainable use of forests. Based on the Chinese fir operating history, analysis of existing refining cultivation system under the mountain, tending method, short rotation, stand structure of a single Chinese fir plantation productivity as a result of a decline in forest soil fertility recession. We introduced the natural forest near philosophy and principles to transformation Chinese fir plantation. In order to make the young forest; middle-age forest, establishment forest for the first generation of operating goals respectively, and objectives for the second generation to create favorable conditions for the formation of a tree, so that forest soil fertility is restored to achieve the objective of sustainable management, as well as a larger econom- ic benefits.

关 键 词：杉木 近自然经营 目标树 幼林 中林 成林 

分 类 号：S791.27[农业科学—林木遗传育种]