台山市5种不同地类薇甘菊危害的动态监测

Dynamic monitoring on harm of Mikania micrantha in five land types in Taishan city

为了监测薇甘菊在不同地类危害的动态变化,对5种地类上薇甘菊的盖度、厚度、藤蔓长度和攀缘率指标进行了时间跨度为12个月的研究。研究结果表明:9月份,5种地类中农田荒芜耕地的薇甘菊盖度最大,达88.92%;沿海滩涂灌木林地的薇甘菊厚度最大,达167.50cm;沿海滩涂灌木林地的藤蔓长度最大,达532.50cm;公益林小乔木林地的攀缘率最大,达76.58%。2月份,5种地类中公益林小乔木林地的薇甘菊盖度最大,达52.5%;农田荒芜耕地的薇甘菊厚度最大,达52.08cm;公益林大乔木林地的藤蔓长度最大,达184.17cm;公益林大乔木林地的攀缘率最大,达6.25%。监测结果为防治方法的选择奠定了理论基础。

In order to monitor the harm change of Mikania micrantha in different land types,researches which last twelve months on coverage,thickness,vine length and climbing rate of Mikania micrantha in five land types were conducted.Results showed that in September,coverage of Mikania micrantha in barren farmland was88.92%and the largest in five land types;thickness of Mikania micrantha in coastal shrub land was 167.5 cm and the largest in five land types;vine length of Mikania micrantha in coastal shrub land was 532.5 cm and the largest in five land types;climbing rate of Mikania micrantha in small arbor land of public welfare forest was76.58%and the largest in five land types.In February,coverage of Mikania micrantha in small arbor land of public welfare forest was 52.5%and the largest in five land types;thickness of Mikania micrantha in barren farmland was 52.08 cm and the largest in five land types;vine length of Mikania micrantha in large arbor land of public welfare forest was 184.17 cm and the largest in five land types;climbing rate of Mikania micrantha in large arbor land of public welfare forest was 6.25%and the largest in five land types.The monitoring results laid a theoretical foundation for the selection of control methods.