Ventenata dubia in the Zumwalt Prairie Preserve in northeastern Oregon: Foliar response to grazing and fire treatments

This data publication includes a sample of the frequency and foliar cover of Ventenata dubia (ventenata) in June and July 2008, 2016, and 2018 in the Zumwalt Prairie Preserve in northeastern Oregon. In addition to these measures, the density of ventenata was also recorded in 2016 and 2018. These data describe the trend in ventenata abundance through time under differing treatments of grazing and fire. This project was completed as a component of a study examining the invasion of ventenata in the Blue Mountains Ecoregion (EPA Level III; https://www.epa.gov/eco-research/level-iii-and-iv-ecoregions-continental-united-states).
These data were collected in an effort to examine the effect of cattle grazing, fire, and their interaction on the abundance of ventenata in the Pacific Northwest Bunchgrass Prairie through time. Ventenata's invasion is relatively recent in this region and the existance of an established network of monitoring plots allowed a view of the ventenata invasion in a unique and uncommon plant community of the Pacific Northwest.
More information about the larger study can be found at https://www.nwfirescience.org/ventenata#Extent_of_Ventenata.

本数据集公开内容包含2008年、2016年及2018年6月与7月期间，俄勒冈州东北部祖姆沃尔特草原保护区（Zumwalt Prairie Preserve）内杜宾瓦氏针茅（Ventenata dubia，下文简称ventenata）的频度与叶盖度采样数据。除上述调查指标外，研究团队还在2016年与2018年记录了ventenata的种群密度。本数据集反映了不同放牧与火烧处理下，ventenata种群丰度随时间的变化趋势。本项目为一项针对蓝山生态区（Blue Mountains Ecoregion，美国环境保护署（Environmental Protection Agency，简称EPA）三级生态区；链接：https://www.epa.gov/eco-research/level-iii-and-iv-ecoregions-continental-united-states）内ventenata入侵情况的研究子课题。
本数据集的采集旨在探究牛群放牧、火烧及其交互作用对太平洋西北丛禾草草原（Pacific Northwest Bunchgrass Prairie）内ventenata种群丰度的长期影响。ventenata在该区域的入侵历史相对较短，且依托已建成的监测样地网络，得以观测太平洋西北区域独特且罕见的植物群落中ventenata的入侵过程。
更多关于该整体研究的详细信息可访问链接：https://www.nwfirescience.org/ventenata#Extent_of_Ventenata。