Vegetated Wetland Density

The U.S. Fish and Wildlife Service National Wetlands Inventory Program produces decadal Wetlands Status and Trends reports to Congress. These reports provide scientific estimates of wetland area in the conterminous United States as well as change in wetland area. This specific report spans the years between 2009 and 2019. This layer is in a web map that is a component in a story map that presents a summary of the results of the report as well as providing examples of the types of wetland change observed, the implications of wetland change, and the studies' recommendations for policies and strategies going forward. This map shows interpolated vegetated wetland density in the conterminous United States between 2009 and 2019. To learn more and access Wetlands Status and Trends reports, visit https://www.fws.gov/wetlands/status-and-trends, and you can find more broad information about wetlands at https://www.fws.gov/wetlands.

美国鱼类及野生动物管理局（U.S. Fish and Wildlife Service）下属的国家湿地调查项目（National Wetlands Inventory Program）每十年向国会提交一份《湿地现状与趋势报告》。此类报告可提供美国本土湿地面积及其变化量的科学估算结果。本次报告的时间跨度为2009年至2019年。本图层（layer）隶属于一张网页地图（web map），而该网页地图又是某故事地图（story map）的组成部分：该故事地图不仅汇总了本次报告的研究成果，还展示了观测到的各类湿地变化案例、湿地变化带来的影响，以及本研究对后续政策与战略的建议。本网页地图展示了2009年至2019年间美国本土插值生成的植被型湿地密度分布。如需了解更多详情或获取《湿地现状与趋势报告》，请访问https://www.fws.gov/wetlands/status-and-trends；若需查阅更多湿地相关的通用信息，可访问https://www.fws.gov/wetlands。