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原文传递 Evaluating the Potential for Vehicle Transport of Propagules of Invasive Species

题名：	Evaluating the Potential for Vehicle Transport of Propagules of Invasive Species
作者：	Balbach, Harold;Rew, Lisa;Fleming, Joseph;
关键词：	GROUND VEHICLES, ZGROUND VEHICLESZ, ENVIRONMENTAL IMPACT, ZENVIRONMENTAL IMPACTZ, EXPERIMENTAL DESIGN, ZEXPERIMENTAL DESIGNZ, SEEDS, ZSEEDSZ, SOILS, ZSOILSZ, WATER WASHING, ZWATER WASHINGZ, TEST AND EVALUATION, ZTEST AND EVALUATIONZ, ECOSYSTEMS, ZECOSYSTE
摘要：	Federal land managers have a responsibility to comply with the Presidential Executive Order on invasive species. propagules of invasive plants, largely seeds but also other plant parts, are introduced to new areas by a variety of natural and human actions. Roads and vehicles, including military vehicles and off-road recreational vehicles, are often regarded as important dispersal vectors. Plant seeds and fungal spores are often transported in the soil and mud picked up when vehicles are operated off paved roads. The quantity of soil that adheres to a vehicle is highly variable. This study shows that 50 pounds is a common load for a moderately soiled vehicle, and that 100 pounds (dry weight) is not uncommon. The number and variety of plant propagules transported by vehicles, and how this varies with driving surface, soil type, and vehicle type is poorly understood. Nor is it known how effective current vehicle washing procedures are in removing soil and (potentially) any associated propagules. The objectives of this work were to acquire data on soil adhering to vehicles driven off road, and to evaluate several relocatable commercial vehicle cleaning systems for 1)cleaning system efficacy, 2) waste containment, and 3) seed viability. The U.S. Army Engineer Research and Development Center, Construction Engineering Research Laboratory (CERL), The U.S. Forest Service San Dimas Technology & Development Center (SDTDC), Montana State University, Bozeman (MSU) and the California Department of Forestry and Fire Protection (Cal Fire) joined forces to evaluate a range of relocatable vehicle cleaning systems. SDTDC took the lead role in developing the equipment and methods used in this phase of the study, while MSU led the effort to evaluate the post-cleaning viability of propagules. CERL held primarily a planning and oversight role and Cal Fire provided the location and also some of the vehicles, machines, and logistical support to make this study possible.
总页数：	5
报告类型：	科技报告