山地杉木人工林择伐环境效益价值动态变化  

Dynamic Change of Value of Forest Environmental Benefit with Selective Cutting of Chinese Fir Plantation in the Mountain

作　　者：巫志龙 周成军[1,2] 周新年 郑丽凤[1,2] 林海明 蔡瑞添[4] 刘富万 赖阿红[1] Wu Zhilong;Zhou Chengjun;Zhou Xinnian;Zheng Lifeng;Lin Haiming;Cai Ruitian;Liu Fuwan;Lai Ahong(College of Transportation and Civil Engineering,Fujian Agriculture and Forestry University,Fuzhou 350002,China;State Forestry Administration Engineering Research Center of Chinese Fir,Fuzhou 350002,China;Fujian Jian’ou Furen Forestry Co. ,Ltd. ,Jian’ou 353100,China;Jian’ou Forestry Bureau,Jian’ou 353100,China)

机构地区：[1]福建农林大学交通与土木工程学院,福建福州350002 [2]国家林业局杉木工程技术研究中心,福建福州350002 [3]福建省建瓯福人林业有限公司,福建建瓯353100 [4]福建省建瓯市林业局,福建建瓯353100

出　　处：《北华大学学报（自然科学版）》2017年第6期796-801,共6页Journal of Beihua University（Natural Science）

基　　金：国家自然科学基金项目(30972359;31070567);福建农林大学部级创新平台资助(ptjh13002);福建农林大学高水平森林工程特色重点学科建设项目(612014018);福建农林大学科技创新专项基金项目(CXZX2016036);福建省自然科学基金计划项目(2013J01072);福建省中青年教师教育科研A类科技项目(JA14124);福建省林业厅科学基金项目(闽林科[2012]2号;[2013]5号)

摘　　要：以33 a生杉木(Cunninghamia lanceolata(Lamb.)Hook.)人工纯林为研究对象,研究择伐强度对森林环境效益的影响.设置弱度(12.5%)、中度(22.9%)、强度(49.3%)和极强度(62.7%)4种不同择伐强度,跟踪调查试验样地5 a和8 a后土壤及凋落物持水、保肥及林分固碳释氧的价值变化,分析不同择伐强度对生态环境效益的影响.结果表明:随着择伐强度的增大,生态环境效益总价值呈先增大后减小的变化趋势;弱度和中度择伐5 a和8a后,可产生环境收益463.5~804.2元/hm2;强度择伐5 a后,导致环境成本23.7元/hm2,但8 a后可产生环境收益747.4元/hm2;极强度择伐5 a和8 a后,导致环境成本488.6和48.1元/hm2.因此,杉木人工林弱度、中度和强度择伐,能较好地促进其发挥涵养水源、保肥和固碳释氧3方面的生态服务功能,建议类似林分择伐强度不超过强度择伐.The effect of selective cutting intensity on forest environmental benefits was conducted in33-year-old pure Chinese fir plantations.Plots of different selective cutting intensities,including low intensity(12.5%),moderate intensity(22.9%),high intensity(49.3%)and extra-high intensity(62.7%)were set up.The ecological value change of water and fertilizer conservation of the soil and litter,and carbon fixation and oxygen release of the stand were surveyed.Basing on them,the impact of selective cutting intensity on forest environmental benefits5and8years later was analyzed.The results showed that the value of forest environmental benefit increased at first,then decreased with the selective cutting intensity increasing.It could produce the environmental income(463.5~804.2Yuan/hm2)under selective cutting of low and medium intensity5and8years later.Selective cutting of high intensity led to the environmental cost(23.7Yuan/hm2)5years later,but it could produce the environmental income(747.4Yuan/hm2)8years later.Selective cutting of extra-high intensity led to the environmental cost5and8years later,respectively488.6Yuan/hm2and48.1Yuan/hm2.So,selective cutting of low,moderate and high intensity can effectively promote ecological service function of Chinese fir plantation,including water and fertilizer conservation,carbon fixation,and oxygen release.It is recommended that selective cutting is not more than high intensity for the similar stand.

关 键 词：择伐强度 生态服务价值 环境成本 杉木人工林 

分 类 号：S751[农业科学—森林经理学]