Aeolian dust weights sampled by BSNE collectors before and after the windy season from the NEAT study at Jornada Basin LTER, 2008-ongoing

This data package contains weights of windblown dust collected by BSNE collectors at long-term vegetation-removal plots that are part of the Jornada Basin LTER Nutrient and Ecosystem impacts of Aeolian Transport (NEAT) study located at the Jornada Experimental Range. The dataset can be used to estimate horizontal dust flux in vegetation removal treatment plots (different percentage vegetation removed) and contiguous downwind plots. Year 2008 was the initial collection and collections in subsequent years occur before and after the windy season. The experiment was designed to test the effects of increases in wind erosion on soil and vegetation properties on the sand sheet geomorphic unit for different levels of herbaceous cover. In order to increase wind erosion rates, vegetation was removed each spring to increase bare surface area and stimulate erosion (the less vegetation present the greater the wind erosion). The experimental design includes three blocks located in one pasture, each with four treatment plots that are maintained at one of four levels of herbaceous vegetation and small shrubs removed (25, 50, 75, 100%) and a control. Treatment plots are 25x50m with 25m buffers between. The vegetation removal includes grasses and small shrubs (like Gutierrezia sarothrae and Zinnia grandiflora), but not mesquite or yucca or any of the larger shrubs. Also, contiguous downwind plots are monitored for soil and vegetation properties, but no removal treatments are performed in these areas. A control treatment where no vegetation was removed that was not downwind of any treatment is also included. This study is ongoing and is updated twice per year - before and after the spring windy season.

本数据集包含由BSNE采样器（Big Spring Number Eight）在长期植被移除样地中采集的风成粉尘重量数据，这些样地隶属于位于霍罗那实验牧场（Jornada Experimental Range）的霍罗那盆地长期生态研究（Long Term Ecological Research, LTER）风沙输运养分与生态效应（Nutrient and Ecosystem impacts of Aeolian Transport, NEAT）项目。本数据集可用于估算不同植被移除比例的植被移除处理样地，以及邻近下风向样地的水平粉尘通量。2008年为首次采样年份，后续每年的采样均于多风季节前后开展。本实验旨在探究砂质地貌单元中，不同草本覆盖度下风蚀加剧对土壤与植被特性的影响。为提升风蚀速率，研究团队于每年春季移除植被以扩大裸露地表面积、促进风蚀（植被覆盖率越低，风蚀强度越高）。实验设计包含一处牧场内的三个重复区组，每个区组设有4个处理样地与1个对照样地：4个处理样地分别维持25%、50%、75%、100%的草本植被与小型灌木移除比例，对照样地未开展任何植被移除操作。处理样地规格为25m×50m，样地间设置25m的缓冲带。本次移除的植被涵盖草本植物与小型灌木（如束状假万寿菊*Gutierrezia sarothrae*、大花百日菊*Zinnia grandiflora*），但不包括牧豆树（mesquite）、丝兰（yucca）及其他大型灌木。此外，研究团队会对邻近的下风向样地的土壤与植被特性进行监测，但不对这些区域实施植被移除处理。本研究还设置了一处独立对照样地，该样地未处于任何处理样地的下风向范围内，且未进行任何植被移除操作。本研究仍在进行中，每年会在春季多风季节前后各更新一次数据集。