摘要
经过调查研究和参考文献资料,山东省计有外来杂草22科46属65种,其中50.77%为美洲起源,46.7%的种类是作为有用植物有意引进,其余则随交通工具、进口农产品等无意引进;根据外来杂草在山东的丰富程度,可分为恶性杂草、常见杂草、逃逸种和具有潜在危害性杂草等种类;探讨了外来杂草入侵的生态环境和经济后果,提出了对外来杂草的管理对策。
Sixty-five species of exotic weeds belonging to 22 families and 46 genera were identified and recorded in Shandong Province through investigation and referring to the literatures. 50.77% of the exotic weeds originated from America. Concerning the introduction ways, 46.7% of the exotic weeds were introduced as useful plants, while the others were introduced accidentally in accompany with transportation, imports of agricultural products, etc. Based on the grade of abundance, the exotic weeds of Shandong Province can be divided into 4 types. In this paper ,the author also discussed the influence in economy and entirenment and put forward the countermeasure in cortroling these exotic weeds.
出处
《国土与自然资源研究》
2005年第3期87-89,共3页
Territory & Natural Resources Study
关键词
外来杂草
山东省
传入途径
exotic weed
Shandong Province
introduction way
