黔东南州低产低效林现状、成因及改造模式

Status quo and Reasons for Low-yield & Low-effect Forest in Southeast Prefecture of Guizhou Province and the Model for Improving Purpose

介绍贵州省黔东南州低产低效林界定标准及界定的低产低效林各林种、树种面积.分析了低产低效林单位面积蓄积量低,年生长量低,径级结构偏小等具体表现,认为导致林分低产低效的原因是多年来林地重采轻予,"灭荒"时只图数量不重质量、"拔大毛"的传统经营方式等.藉此提出了改造原则及改造模式.

The paper introduced the status quo of low-yield and low-effect forest in Southeast Prefecture Guizhou Province,such as the criteria for the definition,defined forest classification and area,and analyzed the reasons for low stock volume per unit with the unsatisfied performances including low growth amount and too small diameter structure.It concerned that the reasons for low-yield and low-effect stand were quantity over quality as well as outdated traditional method,then proposed the principle and model on the purpose of the improvement.