千岛湖萌芽杉木与地带性阔叶树种混交试验  

Mixed Experiment of Sprouting Cunninghamia lanceolata and Zonal Broad-leaved Tree Species in Thousand Island Lake

作　　者：徐邓幸 邵建兵 蒋科毅 徐高福 毛显锋 王志平 Xu Dengxing;Shao Jianbing;Jiang Keyi;Xu Gaofu;Mao Xianfeng;Wang Zhiping(Chun’an Xin’an River Ecological Development Group Co.,Ltd.,Hangzhou 311700,China;Zhejiang Provincial Public Welfare Forest and State-owned Forest Farm Management Station,Hangzhou 311700,China;Hangzhou Chunlin Forestry Development Co.,Ltd.,Hangzhou 311700,China)

机构地区：[1]淳安县新安江生态开发集团有限公司,浙江杭州311700 [2]浙江省公益林和国有林场管理总站,浙江杭州311700 [3]杭州淳林林业发展有限公司,浙江杭州311700

出　　处：《防护林科技》2025年第2期64-67,71,共5页Protection Forest Science and Technology

基　　金：浙江省林业科技项目“杉木林林下更新模式的碳汇能力分析及增汇技术研究”(2024GYLZ04);杭州市农业与社会发展科技计划项目“淳安县特别生态功能区森林健康经营及碳汇精准培育技术研究与示范”(2022NS13)。

摘　　要：萌芽杉木与地带性阔叶树种混交是解决地力衰退、提高林地生产力、增强森林生态服务功能的重要途径。千岛湖界首林场于2004年度皆伐一片杉木人工林进行萌芽更新,2005年开展补植苦槠(Castanopsis sclerophylla)、青冈(Cyclobalanopsis glauca)、石栎(Lithocarpus glaber)、木荷(Schima superba)和枫香(Liquidambar formosana)等地带性阔叶树种混交试验。结果表明:2020年进行间伐,萌芽杉木与阔叶树混交林间伐308株·hm^(-2),间伐蓄积41.3262 m^(3)·hm^(-2),分别比萌芽杉木低29.87%、34.17%。2024年7月调查,萌芽杉木与阔叶树混交林中的地带性阔叶树种重要值高达69.26%,林分密度、林分蓄积分别比萌芽杉木增加45.51%、24.68%;地上部分生物量提高55.20%。萌芽杉木与阔叶树混交林的土壤有机质、速效氮、速效磷和速效钾分别比萌芽杉木提高13.85%、11.18%、7.14%和137.74%。混交林内气温较萌芽杉木林内低1.1℃,比林外空地低2.1℃;混交林内湿度较萌芽杉木林内高7.2个百分点,比林外空地高11.5个百分点。萌芽杉木引入地带性阔叶树种是杉木人工林结构优化、林分质量提升、实施可持续经营的有效措施。The mixed planting of sprouting Cunninghamia lanceolata and zonal broad-leaved tree species is an important way to solve the decline of soil fertility,improve forest land productivity,and enhance the ecological service functions of forests.In 2004,a Cunninghamia lanceolata artificial forest in Jieshou Forest Farm of Thousand Island Lake was clear-cut for seedling sprout renewal.In 2005,a mixed experiment of replanting zonal broad-leaved tree species,such as Castanopsis sclerophylla,Cyclobalanopsis glauca,Lithocarpus glaber,Schima superba,and Liquidambar formosana,was carried out.The results showed that the thinning was carried out in 2020,with 308 trees·hm^(-2)thinning and 41.3262 m^(3)·hm^(-2)thinning accumulation in the mixed forest of sprouting Cunninghamia lanceolata and broad-leaved trees,which were 29.87% and 34.17%lower than those of sprouting Cunninghamia lanceolata,respectively.In July 2024,the investigation showed that the importance value of zonal broad-leaved tree species in the mixed forest of sprouting Cunninghamia lanceolata and broad-leaved trees reached 69.26%,with an increase of 45.51%in stand density and 24.68%in stand volume compared to the sprouting Cunninghamia lanceolata.The aboveground biomass increased by 55.20%.The soil organic matter,available nitrogen,available phosphorus and available potassium in the mixed forest of sprouting Cunninghamia lanceolata and broad-leaved trees were 13.85%,11.18%,7.14%and 137.74%higher than those of sprouting Cunninghamia lanceolata.The temperature in the mixed forest was 1.1℃ lower than that in the sprouting Cunninghamia lanceolata forest and 2.1℃ lower than that in the open space outside the forest.The humidity in the mixed forest was 7.2 percentage points higher than that in the sprouting Cunninghamia lanceolata forest and 11.5 percentage points higher than that in the open space outside the forest.The introduction of zonal broad-leaved tree species into sprouting Cunninghamia lanceolata is an effective measure to optimize the structure of Cunning

关 键 词：萌芽杉木 地带性阔叶树种 混交林 千岛湖 

分 类 号：S791.27[农业科学—林木遗传育种]