Geographic Information System (GIS) characterization of seagrass distribution and density for Southwest Florida, 1990 (NODC Accession 0000611)

Graphic representation of seagrass density polygons in 1990 for Southwest Florida provided by the Southwest Florida Water Management District. Data include a land polygon.由西南佛罗里达水资源管理区（Southwest Florida Water Management District）提供的佛罗里达西南部1990年海草密度多边形图形化展示数据集，其数据包含一块陆地多边形。