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作 者:张超 Zhang Chao(Central South Inventory and Planning Institute of State Forestry and Grassland Administration,Changsha Hunan 410014)
机构地区:[1]国家林业和草原局中南调查规划院,湖南长沙410014
出 处:《热带林业》2022年第1期68-72,共5页Tropical Forestry
摘 要:该研究通过主成分分析法、SOM神经网络模型等方法对海南热带雨林国家公园开展了森林健康评价,并研究了其森林经营优化措施。研究结果表明:(1)热带雨林国家公园的森林健康状况理想,优质健康等级的森林面积最大,处于Ⅳ级(健康)以上(包括健康、优质健康)的森林占森林总面积的62.45%。(2)国家公园内的森林健康度呈现西高东低的趋势,而且海拔相对较高的区域,森林健康度较高,人类的经营活动是对森林健康度造成影响的重要因素。(3)国家公园内经营作业法面积为保育修复作业法,其目的是为了进一步修复退化林和受灾林,使其森林健康程度提升,从而增强海南热带雨林国家公园森林的生态服务功能。This study carried out the forest health evaluation of Hainan Tropical Rainforest National Park through principal component analysis,SOM neural network model and other methods,and studied its forest management optimization measures.The results show that:(1)The forest health status is ideal,and the forest area of high-quality health grade is the largest,and the forests above grade Ⅳ(healthy)(including healthy and high-quality health)account for 62.45%of the total forest area.(2)The forest health degree in the national park shows a trend of high in the west and low in the east,and the area with relatively high altitude has a higher forest health degree.Human management activities are an important factor affecting the forest health degree.(3)The area of management operation in the national park is the conservation and restoration operation method.The purpose is to further restore degraded forests and disaster-stricken forests,improve the forest health,and thus enhance the ecological service function of the Hainan Tropical Rainforest National Park.
关 键 词:森林健康 森林经营 SOM神经网络模型 海南热带雨林国家公园
分 类 号:S759.91[农业科学—森林经理学]
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