详情

The Effects of Reduced Mowing in Medians on Storm Water Filtration and Invasive Species Management

项目名称：	The Effects of Reduced Mowing in Medians on Storm Water Filtration and Invasive Species Management
摘要：	The Rhode Island Department of Transportation (RIDOT) Maintenance Division has been considering reducing or eliminating mowing of rights of way as a way to reduce costs. The Federal Highway Administration (FHWA) has been encouraging reduced mowing as a way to increase native vegetation along roads. Except for the clear zone, it is expected that a reduction in mowing will result in increased growth of tall grasses, forbs, shrubs, and trees as this is the normal succession pattern in New England. The challenges are to allow the forest to return outside of the clear zone while maintaining or improving the capacity of the vegetation to filter storm water and to ensure that the vegetation community which develops is dominated by native trees and shrubs and not the many invasive species common in Rhode Island. This project aims to 1) analyze whether managed and unmanaged vegetation communities (frequently mowed, annually mowed, forest) on roadway medians differ in their capacity to remove pollutants from storm water, and 2) survey plant community changes due to natural succession in roadside grasslands where mowing is reduced or eliminated in order to assess the probability of colonization by invasive species.
状态：	Active
资金：	133997.00
资助组织：	Research and Innovative Technology Administration
执行机构：	URI Transportation Center- RIDOT
开始时间：	20130815
主题领域：	Highways；Hydraulics and Hydrology；Maintenance and Preservation；I15: Environment