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在科学性、整体性、代表性和可操作性原则的指导下,从二类调查等数据中选取13个评价指标,构建了杉木速生丰产林健康评价指标体系,并确定了其健康等级划分标准;评价了湖南黄丰桥林场817个杉木小班的健康状况。结果表明:该林场处于不健康、亚健康和健康状态的杉木小班数分别占总体小班数的24.7%、57.3%和18.0%;幼龄林健康状态较差,中龄林稍好,过熟林普遍处在亚健康状态下,而近成熟林和成熟林健康状况相对较好。该评价结果可为该林场展开相关的健康经营措施提供参考。
Under the guidance of the principles of science, integrity, representativeness and maneuverability, thirteen evaluation indexes were selected from the data of the second type of survey to establish the index system of health evaluation of fast growing high-yield forests of Chinese fir, and the criteria for classification of health grade The health status of 817 Chinese fir small classes in Huangfengqiao Forest Farm was evaluated. The results showed that the small classes of Cunninghamia lanceolata in the unhealthy, sub-healthy and healthy state accounted for 24.7%, 57.3% and 18.0% of the total number of small classes respectively. The young ones were in poor health condition, In the sub-healthy state, and near mature and mature forest health is relatively good. The results of the evaluation can provide references for the related health management measures of the forest farm.