摘要
在分析罗田县板栗低产林现状的基础上,总结了5种低产林类型及分类改造试验结果。改造试验结果得出,低产林用良种穗条嫁接换种后,第4~5 a能达到丰产水平,经济效益增加最高;密林疏伐改造将栗林密度控制在30~45株/667 m^2,恢复产量见效快;整形修剪增产明显,能有效调节板栗大小年,实现稳产。生产中低产林因其不同的形成原因,成为多种类型的综合体,需各种改造技术组合使用,达到效益最大化。
In this paper low production chestnut forest in Luotian county was divided into 5 types, the improvement tests results showed that： After grafting improved varieties, the forest can reach to high level yield in the 4th to 5th year, which increased the most economic benefit; The density thinning in jungle should be controlled in 30 to 45 plants per 667 m^2 ; pruning can also increase production, and adjust alternate bearing effectively. Every low production forest of chestnut caused of its different forming reason is a complex of several types, and it need the combination of those reconstruction technology to maximizing the benefit.
出处
《湖北林业科技》
2016年第6期25-28,共4页
Hubei Forestry Science and Technology
基金
中央财政林业科技推广示范资金项目:"八月红"等板栗新品种及高效栽培技术推广示范
省林业厅重点科技项目:大别山区板栗低产低效林改造与可持续经营技术研究
关键词
板栗
低产林
改造
Castanea mollissima
low production forest
improvement
