摘要
在探讨现存相关概念的基础上,明确了低产、低质、低效林的范畴和层次关系,并界定了低效林的概念;分析了林场低效成过熟林的现状和形成原因,并结合相关理论和实践经验提出了改造方法和具体技术措施。
On the basis of related concepts, the category and hierarchical relation of forest with low yield, low quality and inefficient were defined. The concept of inefficient over-aged forest was defined, and the status and forming reason were analyzed. According to the related theories and practical experiences, the methods and technical measures of transformation were proposed.
出处
《河北农业科学》
2008年第12期12-13,19,共3页
Journal of Hebei Agricultural Sciences
关键词
低效林
成过熟林
改造
更新
Low-efficiency forest
Over-aged forest
Transformation
Regeneration