Framework / Assessment New Hampshire Forest Resources Plan Revision -- Assessment 2010 Summary Subdivision of large private parcels into smaller ones can lead to an increasing diversity of decisions on how to use a landscape and an increase in the number and distribution of artificial barriers (e.g., houses, roads) and human population. One of the first steps in permitted natural land development is subdivision of parcels (covered under the Subdivision Map Act), which can then be zoned and developed further. This land division and development negatively impacts biodiversity.