Discontinued Vegetation Line-Intercept Transects in Transition Zones at the Sevilleta National Wildlife Refuge, New Mexico (1989-1998)

The line-intercept transects included in this data set have been discontinued. These transects were installed to evaluate temporal and spatial dynamics in vegetation transition zones (e.g.black grama grassland/creosote shrubland) at one centimeter resolution. Each study site originally contained four 400 m transects, representing total coverage of 1 sq km. The transects were placed along a roughly north/south azimuth. The northwestern and southwestern transects were 100 meters from the western edge of the 1 sq km study area and the northeastern and southeastern transects were 100 m from the eastern edge, providing 800 meters between the eastern and western transects. The northeastern and northwestern transects began to the north and, after an interval of 200 meters, the southeastern and northeastern transects began, terminating at the southern edge of the study area.Ongoing line-intercept transect data for transect 1, which continues to be sampled at both Deep Well and Five Points, can be found in SEV004.本数据集收录的样线拦截法样带（line-intercept transects）已停止采样。该类样带最初被用于以1厘米分辨率评估植被过渡带的时空动态，涵盖黑格兰马草草原（black grama grassland）与石炭酸灌丛（creosote shrubland）等类型。每个研究样地初始布设4条总长400米的样带，总覆盖面积达1平方千米。样带沿大致南北向方位角布设：西北、西南侧样带距1平方千米研究区西缘100米，东北、东南侧样带距研究区东缘100米，使得东西侧样带间距达800米。西北与东北侧样带从研究区北端起始；间隔200米后，东南与西南侧样带起始，并终止于研究区南缘。目前仍在持续采样的1号样带拦截数据（该样带在Deep Well与Five Points两地均开展采样）可于SEV004数据集获取。