让尺对杉木材积及经济效益的影响

Impacts of yield scaling on timber volumes and economic benefits

通过调查 4m长且直径为 4～ 18cm的杉原木 113 5 8株 ,分别统计国标及不同让尺程度的材积 ,并与实际材积进行比较 ,以及经济效益分析 ,认为国标检尺作为木材交易的尺度是准确的、公平的。让尺检尺、选材既损失大量木材也降低单位经济效益 ,同时容易滋生行业不正之风和以尺谋私等问题。

Wood volumes by using of national standards and yield scale in various degrees are counted after investigating 11348 China fir with 4 m length and 4～18 cm diameter.Compared to wood volume in fact,the way of national standards as a measure of woods trade is accuracy,fair and reasonable.Yield measure not only lose lots of woods and reduce economic benefit,but also lead to some questions such as unhealthy tendency .