森林资源二类调查数据下的大水沟林区公益林健康评价  

Health Evaluation of Public Welfare Forest in Dashuigou Forest Area Based on Second-Class Survey Data of Forest Resources

作　　者：尹信忠 金樱 Yin Xinzhong;Jin Ying(Baiyun Mountain State-Owned Forest Farm,Gejiu,661000,Yunnan,China;Gejiu Forestry and Grassland Survey and Design Teams,Gejiu 661000,Yunnan,China)

机构地区：[1]个旧市白云山国有林场,云南个旧661000 [2]个旧市林业和草原勘察设计队,云南个旧661000

出　　处：《绿色科技》2024年第9期155-158,162,共5页Journal of Green Science and Technology

摘　　要：在森林资源二类调查数据基础上分析个旧市白云山国有林场大水沟林区的公益林健康度。以个旧市白云山国有林场大水沟林区为研究区,基于2020年森林资源二类调查小班数据,构建生态公益林健康评价指标体系,对公益林进行健康评价和空间分析,结合分析结果提出符合要求的经营管理对策。结果表明:①阔叶混交林的森林健康指数最高,针叶纯林的森林健康指数最低;②阔叶混交林、针叶混交林和阔叶相对纯林处于亚健康状态,森林健康水平比较高,针叶混交林、针叶相对纯林处于亚健康和中健康状态,森林健康处于中等水平、阔叶纯林处于不健康状态,森林健康水平较低;③大水沟林区阔叶林、针叶林较多,树种结构以优良为主,树种结构等级较高;森林灾害等级和森林系统更新等级处中等水平;林木平均胸径属中等范畴;林下植被覆盖度处中等水平;林木郁闭度高,林龄以中龄林、近熟林和成熟林为主,林龄结构合理;④天然林健康和亚健康占比均高于人工林,不健康和中健康占比低于人工林。指出了个旧市白云山国有林场大水沟林区公益林资源质量为优,林区覆盖率高,林区整体发展处中高等水平,呈向上可持续发展态势,但存在成熟林占比过高的情况,需适当调整林龄结构。The health degree of public forest in Dashuigou forest area of Baiyun Mountain State-Owned Forest Farm in Gejiu City was analyzed on the basis of the second-class survey data of forest resources.Taking Dashuigou forest area of Baiyun Mountain State-Owned Forest Farm in Gejiu City as the research area,based on the data of the second-class survey of forest resources in 2020,the health evaluation index system of ecological public forest was constructed,and the health evaluation and spatial analysis were carried out for the public forest.Results:①the forest health index of broadleaf mixed forest was the highest,and that of coniferous pure forest was the lowest.②mixed broad-leaved forest,mixed coniferous forest and relatively pure broad-leaved forest are in sub-health state,and the forest health level is relatively high;mixed coniferous forest and relatively pure coniferous forest are in sub-health and medium health state;forest health is in medium level,and pure broad-leaved forest is in unhealthy state,and forest health level is low;③there are more broad-leaved forests and coniferous forests in Dashuigou Forest area,and the tree species structure is mainly excellent,and the tree species structure grade is higher;The forest disaster level and forest system renewal level are medium.The average DBH of trees belongs to the medium category.The vegetation coverage of understory is medium level.With high canopy closure,the age of forest is mainly middle-aged forest,near mature forest and mature forest,and the age structure of forest is reasonable.④the proportion of natural forest health and sub-health is higher than that of plantation,and the proportion of unhealthy and moderate health is lower than that of plantation.The quality of non-commercial forest resources in Dashuigou Forest area of Baiyun Mountain State-Owned Forest Farm in Gejiu City is excellent;the coverage rate of forest area is high;the overall development of forest area is medium and high,showing a trend of upward sustainable development,but the pro

关 键 词：森林资源 二类调查 质量评价 公益林 健康度 

分 类 号：S7[农业科学—林学]