This chapter is enacted to promote, protect and facilitate the public health, safety, morals, general welfare, coordinated and practical community development, proper density of population, the provisions of adequate light and air, access to alternative solar energy, police protection, vehicle parking and loading space, transportation, provision of a safe, reliable and adequate water supply, sewerage, schools, recreational facilities, public grounds and other public requirements, as well as to prevent overcrowding of land, blight, danger and congestion in travel and transportation, loss of health, life or property from fire, flood, panic or other dangers; as well as preservation of the natural, scenic and historic values in the environment and preservation of forests, wetlands, aquifers.