据悉,刺萼龙葵是起源于北美的外来恶性有毒杂草,自2009年以来,刺萼龙葵在我国北方农牧交错带快速蔓延,在辽、吉、蒙、冀等省(市、区)112个县(市、旗)发生危害,严重危害面积已达480万亩,对当地农牧业生产和生态安全构成严重威胁。在国家公益性行业科研项目的支持下,由环发所退化环境生态修复创新 It is reported that the Calyx is a non-toxic foreign weed that originated in North America. Since 2009, Calyx japonica has rapidly spread in the ecotone between agriculture and animal husbandry in the north of China. In the provinces of Liaoning, Kyrgyzstan, Mongolia and Hebei ) 112 counties (cities, flags) were harmed and the area of ​​serious harm reached 4.8 million mu, which posed a serious threat to the local agriculture and animal husbandry production and ecological security. In the national public sector research projects with the support of the environmental protection by the Central degeneration of environmental restoration and innovation