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Greene County Soil & Water Conservation District Stream Stewardship Program
Japanese Knotweed |
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Japanese knotweed (Fallopia japonica), originally from Asia, is a non-native invasive species that has established stands along much of the Batavia Kill, and several other sub-basins of the New York City Watershed. There is concern that Japanese knotweed has negative impacts on streambank stability, thereby contributing to increased turbidity and decreased water quality within several streams in Greene County and the New York City Watershed. GCSWCD has worked collaboratively with the New York City Department of Environmental Protection (NYCDEP) and Hudsonia Ltd. to study Japanese knotweed within the Batavia Kill watershed.
Hudsonia Ltd. first conducted a literature search and review to gather current information regarding the biology, ecology and management of Japanese knotweed (see resource link to right). The next step in our research efforts, was to determine the extent of knotweed cover along the Batavia Kill streambanks and floodplain. Using ArcGIS 8.3, Hudsonia Ltd. conducted a remote vegetation analysis within the riparian corridor of the Batavia Kill, mapping vegetation types and knotweed occurrences. Japanese knotweed is prevalent along the Batavia Kill.
Additionally, research has been conducted on the soils, vegetation and biota associated with knotweed stands along the Batavia Kill. The findings of the remote and field studies of knotweed can be found in Hudsonia Ltd.’s draft report, Japanese Knotweed Mapping and Sampling on the Batavia Kill, Greene County, New York. This publication is not currently available for public release, to learn the date of availability or the results of our research, please contact the Executive Director of Hudsonia Ltd., Erik Kiviat, Ph.D. or GCSWCD. |
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Knotweed Resources
Completed Projects
Japanese Knotweed Regional Meeting
On-Going Projects
Monitoring Japanese Knotweed Stands
Managing Japanese Knotweed Stands
Web Resources
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