国家级森林资源清查地面样地设计

A Review on Ground Plot Design for National Forest Inventory in the World

对世界主要国家森林资源清查地面样地设计进行了述评,包括样本单元的构成、样地大小、形状、样本单元中树木的选择方法、调查因子和调查周期。发现样本单元多采用群团样地或样地群,圆形样地应用较多,调查因子除森林资源外,还包括森林健康、生物多样性、碳和土壤等。结合我国森林资源清查在样地设计方面的问题,提出了相应的对策和建议。

Ground Plot Design techniques for National Forest Inventory（NFI） of major countries in the world are reviewed. They cover sample unit, plot configuration, plot size, selection of trees in sample unit, and investigation variables and interval. Clustered circular plots are commonly adapted. Forest health, biomass, biodiversity and soil carbon are also included in the investigation variables besides normal ones. The authors put forward corresponding suggestions on ground plot design of NFI in China based on existing problems.