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原文传递 Assessment of Exotic and Invasive Plants Along Roadways in Tennessee: Potential for Biological Control

题名：	Assessment of Exotic and Invasive Plants Along Roadways in Tennessee: Potential for Biological Control
作者：	Paris L. Lambdin and Jerome F. Grant
关键词：	Exotic plants, invasive plants, biological control, weed management roadside surveys
摘要：	A comprehensive two-year study focused on identifying and assessing incidence, distribution, and impact of exotic and invasive plant species along interstate right-of-ways in Tennessee. Goals of this study were to; 1) identify exotic and invasive plant species established along interstates, 2) develop a species listing of the floral composition along interstates, 3) assess the potential threat of exotic and invasive plant species 3ecoming an economical and environmental pest along highways, and 4) evaluate the potential opportunities for biological control of areas exotic and invasive plants. Exotic and invasive plant species can degrade the natural composition of areas impacting native plants, reducing biological diversity, reducing agricultural productivity, increasing costs of agricultural production, and interstates costs of managing land areas. During this study, 538 plant species, representing 19.8% of the 2,715 plant species documented in TN, were found at qualitative and quantitative sampling sites along interstates. Of 538 plants found 32.7% (n=176) were exotic species - thus, about 1 of every 3 plant species found along the interstate was an exotic species. More than 75% of the plants on the IN State Noxious Weed Seed List, and more than 60% of those listed by TN- EPPC, were found. These data suggest that the interstate system may serve as a corridor for the movement and establishment of exotic plant species. Improved weed management strategies can now be implemented to reduce the spread of problematic exotic and invasive plants from interstates to agricultural, natural, forest,and urban habitats. Incorporation of well designed biological control strategies into weed management efforts provide an environmentally friendly, cost efficient, and sustainable method of reducing certain exotic plant species. This study provide the first intensive, state-wide, interstate assessment of exotic and invasive plants conducted in the U.S. and provides a solid foundation for future management efforts against these plant pests
报告类型：	科技报告