Estuarine shoreline changes in Jamaica Bay, New York City: implications for management of an urban national park.

摘要: The Jamaica Bay portion of Gateway National Recreation Area, located next to highly urbanized New York City, faces many challenges preserve and protect its natural, cultural, recreational resources. To aid in the management park resources, detailed estuarine shoreline analyses were undertaken using imagery taken 1951, 1974, 2006. A 15-class land use/land cover (LULC) classification scheme was created after doing an initial examination types LULC 2006 orthoimagery then applied previous years. By quantifying how where has changed over past 60 years, managers can better assess impact practices by comparing within boundary outside before 1972. Despite heavy development City trend for modification, overall maintained large percentages undeveloped vegetation sandy beaches. Much change occurred creeks as a result dredging shape modification residential commercial uses. Park been effective limiting alteration although there have significant changes relative sand vegetated beaches between 1974