摘要
植物挥发性有机物是植物体内次生代谢合成的化合物,在大气环境、植物信息传递中发挥着重要作用。本研究综述了植物挥发性有机物(BVOCs)的组成、释放时空变化规律及其影响释放的因素。结果表明,关于植物挥发性有机物时间变化规律的研究大多聚焦于季节尺度,其中夏季释放种类最多、浓度最大,日变化则会因为不同树种及其他因素影响而不同;其空间变化规律为:南部地区BVOCs排放量和排放速率整体大于北方地区,西北地区相关研究较为缺乏;影响植物挥发性有机物的因素包括树种、树龄和光照、温度、臭氧、CO_(2)和非生物胁迫等,其中绝大多数的研究聚焦于异戊二烯和几种单萜上,对其他有机物的研究还少有涉及;继续对植物挥发性有机物的排放量模型、负面影响以及内部释放机理深入研究可以为城市或森林的植物配置和森林康养资源开发提供依据。
Biogenic volatile organic compounds were compounds synthesized by secondary metabolism in plants,which played an important role in the atmospheric environment and plant information transmission.This paper reviewed the composition,temporal and spatial variation of plant volatile organic compounds(BVOCs)and the factors affecting their release.The results showed that most of the studies on the temporal variation of biogenic volatile organic compounds focused on the seasonal scale,among which the summer release species and concentrations were the largest,and the diurnal variation was different due to the influence of different tree species and other factors.The spatial variation law was that the emission rate of BVOCs in the southern region was generally greater than those in the northern region,and the relevant research in the northwest region was relatively lacking.The factors affecting biogenic volatile organic compounds included tree species,age and light,temperature,ozone,CO_(2)and abiotic stress,among which most studies focused on isoprene and several monoterpenes,and few studies on other organic compounds were involved.Further research on the emission model,negative effects and internal release mechanism of plant volatile organic compounds could provide a basis for the allocation of plants in cities or forests and the development of forest resources.
作者
欧阳嗣航
刘叶凡
韩阳媚
程顺
王秀敏
李玉灵
OUYANG Sihang;LIU Yefan;HAN Yangmei;CHENG Shun;WANG Xiumin;LI Yuling(College of Forestry,Hebei Agricultural University,Baoding 071000,China;Saihanba Mechanized Forestry Farm of Hebei Province,Chengde 068456,China;Baoding Forestry and Grassland Bureau,Baoding 071001,China)
出处
《林业与生态科学》
2023年第3期375-384,共10页
Forestry and Ecological Sciences
基金
承德国家可持续发展议程创新示范区建设科技专项(202104F009)。
关键词
植物挥发性有机物
异戊二烯
时空变化
影响因素
biogenic volatile organic compounds
isoprene
spatiotemporal changes
influencing factors
