Extent of U.S. Rangelands (Image Service)

Note: To download this raster dataset, go to ArcGIS Open Data Set and click the download button, and under additional resources select raster download option. An image service that depicts rangelands in the coterminous U.S., including transitional rangelands and small patch-size rangelands.This raster dataset depicts rangelands in the coterminous U.S., including transitional rangelands and small patch-size rangelands. Each 30 meter pixel is assigned a land cover category, including Rangeland, Afforested Rangeland (experiencing encroachment by trees [> 25% tree cover]) and Transitional Rangeland (currently dominated by herbs or shrubs that will likely become forested without management intervention).Rangeland extent is an important factor for evaluating critical indicators of rangeland sustainability. Rangeland areal extent was determined for the coterminous United States in a geospatial framework by evaluating spatially explicit data from the Landscape Fire and Resource Management Planning Tools (LANDFIRE) project describing historic and current vegetative composition, average height, and average cover through the viewpoint of the Natural Resources Inventory (NRI) administered by the Natural Resources Conservation Service. Three types of rangelands were differentiated using the NRI definition encompassing rangelands, afforested rangelands, and transitory rangelands.Data can be downloaded from here. To learn more rangelands and drought, see this StoryMap; additional drought and rangeland products from the Office of Sustainability and Climate are available in our Climate Gallery.This record was taken from the USDA Enterprise Data Inventory that feeds into the https://data.gov catalog. Data for this record includes the following resources: ISO-19139 metadata ArcGIS Hub Dataset ArcGIS GeoService For complete information, please visit https://data.gov.

请注意：下载本矢量数据集，请访问 ArcGIS 开放数据集，点击下载按钮，并在附加资源中选择矢量下载选项。该图像服务描绘了美国大陆的牧场，包括过渡牧场和小块状牧场。本矢量数据集描绘了美国大陆的牧场，包括过渡牧场和小块状牧场。每个30米像素被分配一个土地覆盖类别，包括牧场、林化牧场（树木侵占比例超过25%）和过渡牧场（目前主要由草本植物或灌木组成，若不进行管理干预，可能变为森林）。牧场范围是评估牧场可持续性关键指标的重要因素。通过评估由自然资源保护服务局管理的自然资源清查（NRI）的历史和当前植被组成、平均高度和平均覆盖度等空间明确数据，在地理空间框架下确定了美国大陆的牧场面积。根据NRI的定义，区分了三种类型的牧场：牧场、林化牧场和过渡牧场。数据可从以下链接下载。欲了解更多关于牧场和干旱的信息，请参阅此 StoryMap；气候画廊中提供了来自可持续发展与气候办公室的额外干旱和牧场产品。本记录源自 USDA 企业数据目录，该目录输入到 https://data.gov 目录。本记录的数据包括以下资源：ISO-19139元数据、ArcGIS Hub 数据集、ArcGIS 地理服务。如需完整信息，请访问 https://data.gov。