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City of Arden Hills-Comprehensive Plan- DRAFT <br /> Area 2 contains areas a mosaic of upland and wetland community types <br /> surrounding Rice Creek. Community types include forest, woodland, and <br /> emergent marsh. The majority of these communities were given a "medium" <br /> ranking in the natural resource assessment. The portion of Rice Creek within the <br /> City of Arden Hills is currently on the 303(d) list of impaired waters. <br /> Area 3 contains areas of forest, woodland, and emergent marsh surrounding <br /> Marsden Lake. All of the lake's shoreline is in natural vegetation. This complex of <br /> natural areas is unique because of its large size and lack of fragmentation. The <br /> majority of these areas were given a "medium" ranking in the natural resource <br /> assessment. Marsden Lake does not have sufficient water quality information to <br /> determine its potential for water quality impairment due to excess nutrients. <br /> 10.6 Invasive Species <br /> While many of the open spaces in Arden Hills are of high quality, invasive <br /> species such as buckthorn are a problem in many parks and open spaces <br /> throughout Minnesota. Unfortunately, a number of Arden Hills' parks and open <br /> spaces contain buckthorn. In cooperation with residents and service groups, the <br /> City has instituted a buckthorn removal program. The City plans to continue to <br /> control buckthorn on and ongoing basis as needed and as resources are <br /> available. The City will also continue to encourage the removal of buckthorn <br /> and other invasive species from private land. <br /> 10.7 Resource Protection Implementation <br /> In order to advance the protected resources goal, the below activities are <br /> proposed. This list is not all-inclusive and additional tools and opportunities <br /> should be researched: <br /> o Adopt tree preservation standards and revised landscaping requirements. <br /> o Update the shoreland and floodplain development regulations to be in <br /> compliance with Minnesota Department of Natural Resources regulations, <br /> Rice Creek Watershed District regulations, and to encourage the protection of <br /> the City's water resources. <br /> o Review existing and develop new standards or regulations to protect <br /> identified natural resource protection areas. <br /> o Work cooperatively with private landowners and other governmental agencies <br /> to preserve and enhance open spaces. <br /> DRAFT 67 <br /> 3/14/2008 <br />