College of Agriculture and Natural Resources
Center for Land Use Education and Research
A CLEAR Mini Research Project


Contact the Geospatial Training Program for more information.

Characterizing Land Type Associations (LTAs) for Connecticut and Rhode Island

Information about the nature and distribution of ecosystems is critical for managing our natural resources. Hierarchical systems using ecological principles for classifying landscapes are being developed worldwide at various geographic scales ranging from global to local. The purpose of this project is to characterize Land Type Associations (LTAs) for Connecticut and Rhode Island in a manner that is consistent with the National Hierarchical Framework (NHF) of Ecological Units. Click here to view a table describing the eight principal map units that make up the NHF.

Development of LTAs will be achieved by applying concepts of ecological land classification and quantitative analyses coupled with geographic information system (GIS) technology. Currently landscape units at the NHF subsection level have been mapped for southern New England (see subsection boundaries below). The development of LTAs will clarify the relationships among ecological phenomena that influence areas or networks of areas embedded within the more broadly defined NHF subsections. This will allow for the integration of knowledge from isolated disciplines and will help to facilitate cooperative data acquisition and exchange among different agencies in CT and RI. Uses for LTAs include inventory, monitoring, assessments, interpretations of ecosystem sustainability and land management.

Partners in this project include the USDA Forest Service, USDA Natural Resources Conservation Service in CT, the CT Department of Environmental Protection, MA Department of Environmental Protection, University of Connecticut and the University of Rhode Island.