外来入侵植物黄顶菊在河南北部安阳和鹤壁两市的分布与发生规律  

Distribution and Occurrence Regularity of an Invasive Alien Plant,Flaveria bidentis(L.)Kuntze in Cities of Anyang and Hebi in Northern Henan Province

作　　者：李永革 吴乾美 王瑞[2] 黄雅凤 陈慧民 LI Yongge;WU Qianmei;WANG Rui;HUANG Yafeng;CHEN Huimin(Anyang Municipal Agricultural Environmental Monitoring Station of Henan Province,Anyang 455000,China;State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100193,China;Anyang Municipal Monitoring Center of Agro-Product Quality and Safety of Henan Province,Anyang 455000,China)

机构地区：[1]河南省安阳市农业环境监测站,河南安阳455000 [2]中国农业科学院植物保护研究所,植物病虫害生物学国家重点实验室,北京100193 [3]河南省安阳市农产品质量安全检测中心,河南安阳455000

出　　处：《云南农业大学学报（自然科学版）》2022年第4期559-564,共6页Journal of Yunnan Agricultural University:Natural Science

基　　金：农业农村部项目(091821301082352014)。

摘　　要：【目的】探明外来入侵植物黄顶菊在河南省北部的分布与发生规律,为制订防控措施提供依据。【方法】通过实地监测调查获得黄顶菊的分布、发生生境、物候期和繁殖特性,采用地统计学方法分析已入侵点的空间分布格局与聚集区,以判断扩散蔓延的主要路线和途径。【结果】截至2020年,在河南省北部安阳和鹤壁两市共监测到黄顶菊入侵点93个,主要分布在45个乡(镇)。95%的最早分布点位于道路边5 km,且随着距离的增加黄顶菊发生的频次降低。黄顶菊的分布点在空间上呈不连续的聚集分布,聚集区主要集中在道路等人类活动频繁区域。已入侵的黄顶菊在入侵地都能完成生活史,产生种子,每年可结籽1次,单株最大种子量可达11万粒。【结论】黄顶菊在河南北部进一步扩散蔓延的潜力巨大。初步判断人类活动是黄顶菊从河北跨区域扩散至该地区的主要因素,研究结果对制订黄顶菊的监测预警措施具有重要意义。[Purpose]To elucidate the distribution and occurrence regularity of Flaveria bidentis(L.)Kuntze in northern Henan Province,providing guideline for developing early control and prevention measures.[Methods]The distribution of invaded sites,occurrence habitat,phenological period and reproductive characteristics of F.bidentis were obtained through field monitoring and investig-ations.The spatial distribution pattern and aggregation area of invaded sites were analyzed by geostat-istical method to determine the main diffusion routes and paths.[Results]A total of 93 invasion sites were detected by 2020,mainly distributed in 45 towns of Anyang and Hebi cities in northern Henan Province.95%of the earliest sites were located within 5 km of the road,and the frequency of occurrence decreased with the increase of distance.The distribution points of F.bidentis showed spa-tial discontinuous aggregation distribution,and the aggregation areas were mainly concentrated in the roadsides where human activities were frequent.Field investigations showed that all the invaded pop-ulations could complete their life cycles and produce seeds once a year.The maximum number of seeds per plant could reach 110000.[Conclusion]The potential for further dispersal in this region is enormous.Human activity is the main driving factor that promoting the invasion and spread of F.bidentis from Hebei to this region.The results of this study are of great significance for the devel-opment of monitoring and early warning and monitoring measures to prevent and control new inva-sions of F.bidentis.

关 键 词：入侵植物 黄顶菊 分布 物候期 

分 类 号：S451[农业科学—植物保护]