摘要
本文推证出适合我国南北方林区不同采伐作业制度的森林资源消长预测公式、森林年采伐量计算公式和资源档案数据更新计算公式。并将文中推导的公式汇集成一览表,便于综合分析和实际选用。
Calculation formulae including predictor formulae for growth and deline of forest resources, the formulae for annual cut and filing data replacement of forest resources suitable fordifferent operation systems in North and South China are inferred and demonstrated. Thesededuced formulae have been summed up in a table and it is convenient to use them for comprehensive analysis.
出处
《西北林学院学报》
CSCD
1995年第4期58-63,共6页
Journal of Northwest Forestry University
关键词
森林资源
消长预测
年采伐量
prediction of growth and decline of forest resources
annual cut
filing data replacement of forest resources