亚热带典型森林植物源挥发性有机物动态特征及其与环境因子的关系OA
Dynamic characteristics of biogenic volatile organic compounds in typical subtropical forests and it's relationship with environmental factors
[目的]探究亚热带地区 4 种典型森林类型植物挥发性有机物(BVOCs)的时序变化特征,为森林康养资源开发提供理论支撑.[方法]选取阔叶混交林、楠木林、杉木林和毛竹林为研究对象,分析了 5 月、8 月和 10 月主要BVOCs的种类与相对质量浓度变化规律,并探讨其与温度、湿度、空气负离子的相关性.[结果]BVOCs组分多样性以阔叶混交林最高(79 种),其余林分均为 69 种.4 种森林类型释放的BVOCs组分大致相同,主要以烷烃类、萜烯类和醛类最丰富(11～19 种),释放量则以芳香烃和醛类为主(占比15%～35%).4个林分中共检测出19种萜烯类化合物,其中α-蒎烯为优势组分.阔叶混交林释放的萜烯类相对质量浓度显著高于其他林分,且在5月达到峰值.BVOCs的组分丰富度和相对质量浓度呈现明显的季节性差异:阔叶混交林、楠木林和杉木林的组分数在5月最丰富,8月最少,毛竹林则相反;相对质量浓度表现为阔叶混交林和楠木林在5月和10月释放量最多,杉木林和毛竹林则在8月和10月更显著.此外,BVOCs与温度、湿度和空气负离子的关系均以负相关为主.[结论]亚热带地区的4种森林类型中,阔叶混交林的BVOCs组分最丰富,且对人体有益的萜烯类物质相对质量浓度最高,尤其在5月达到峰值,此时期开展森林康养活动可获得最佳效果.
[Objective]This study aimed to investigate the temporal dynamics of biogenic volatile organic compounds(BVOCs)in four typical subtropical forest types,and to provide theoretical support for the development of forest therapy resources.[Method]Mixed broadleaved forest,Phoebe forest,Chinese fir plantation,and Moso bamboo plantation were selected as study objects,and the composition and relative mass concentrations of major BVOCs were analyzed in May,August,and October,and their correlations with temperature,relative humidity,and air negative ions were examined.[Result]The results showed that BVOCs exhibited the highest diversity in mixed broadleaved forest(79 species),compared to 69 species in other forest types.All four forest types released similar BVOCs components,predominantly alkanes,terpenes,and aldehydes(11-19 species each),with aromatic hydrocarbons and aldehydes being the most abundant(15%-35%of total emissions).Among the 19 terpenoid compounds detected,α-pinene was the dominant component.The mixed broadleaved forest showed significantly higher relative mass concentrations of terpenes than other forests,peaking in May.Both BVOCs diversity and relative mass concentrations displayed distinct seasonal patterns:the mixed broadleaved forest,Phoebe forest,and Chinese fir plantation showed maximum component richness in May and minimum in August,while the opposite trend was observed in moso bamboo plantation.Peak relative mass concentrations occurred in May and October for mixed broadleaved forest and Phoebe forest,but in August and October for Chinese fir plantation and moso bamboo plantation.Additionally,BVOCs emissions were primarily negatively correlated with temperature,relative humidity,and air negative ions.[Conclusion]Among the four subtropical forest types,the mixed broadleaved forest had the richest BVOCs composition and the highest relative concentrations of health-beneficial terpenes,particularly peaking in May.Therefore,forest therapy activities during this period may yield optimal therapeutic effects.
王小倩;黄润霞;夏俊勇;陈继来;李爱博;赵紫晴;吕惠飞;周本智
中国林业科学研究院 亚热带林业研究所,浙江 杭州 311400||国家林业和草原局 钱江源森林生态系统定位观测研究站,浙江 杭州 311400||东北林业大学 生态学院,黑龙江 哈尔滨 150040中国林业科学研究院 速生树木研究所,广东 湛江 524022淳安县新安江生态开发集团有限公司,浙江 杭州 311799中国林业科学研究院 亚热带林业研究所,浙江 杭州 311400||国家林业和草原局 钱江源森林生态系统定位观测研究站,浙江 杭州 311400||东北林业大学 生态学院,黑龙江 哈尔滨 150040中国林业科学研究院 亚热带林业研究所,浙江 杭州 311400||国家林业和草原局 钱江源森林生态系统定位观测研究站,浙江 杭州 311400中国林业科学研究院 亚热带林业研究所,浙江 杭州 311400||国家林业和草原局 钱江源森林生态系统定位观测研究站,浙江 杭州 311400浙江省建德市林业总场,浙江 建德 311600中国林业科学研究院 亚热带林业研究所,浙江 杭州 311400||国家林业和草原局 钱江源森林生态系统定位观测研究站,浙江 杭州 311400
农业科技
亚热带森林类型BVOCs组分相对质量浓度季节变化规律环境因子
subtropical forest typesBVOCs component relative mass concentrationseasonal variation patternsenvironmental factors
《中南林业科技大学学报》 2026 (3)
33-44,12
"十四五"国家重点研发计划项目(2024YFD2200900)浙江省重点研发计划项目(2021C02005).
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