Aeolian dust weights sampled by BSNE collectors quarterly from the CSIS study at Jornada Basin LTER, 2012-ongoing

This dataset contains weights of windblown dust collected by BSNE collectors at long-term observation plots that are part of the Jornada Basin LTER Cross-Scale Interaction Study (CSIS) located at the Jornada Experimental Range. There are 15 experimental blocks (or sites) in this study. Within each block, there are 4 plots with different experimental treatments: 1 control, 1 with mesquite herbicide applied, 1 with connectivity modifiers (Conmods) installed, and 1 with Conmods AND mesquite herbicide applied. The intent of Conmods is to decrease gap size between perennial vegetation. The plots are 8 x 8 meters and have an 8 x 8 meter buffer zone on both the upwind and downwind sides of the plot. There are two BSNE (aeolian dust collector) stands per experimental plot positioned at the edge of the upwind and downwind 8m x 8m buffers. Each stand has 3 collectors positioned at heights of 10 cm, 30 cm, and 50 cm, and all collector openings face the prevailing wind direction. Upwind BSNEs collected the amount of dust entering the plot, and the downwind BSNEs collected the amount of dust moving off the plot. These collectors estimate the effectiveness of the plot surface in obstructing wind blown dust. This study is ongoing with data collected quarterly each year.

本数据集包含由BSNE集尘器（BSNE collectors）在长期观测样地中采集的风成粉尘重量，这些样地隶属于位于若望实验牧场（Jornada Experimental Range）的若望盆地长期生态研究（Jornada Basin LTER）跨尺度交互研究（Cross-Scale Interaction Study, CSIS）。本研究共设置15个实验区块（或称样点），每个区块内包含4个接受不同实验处理的样地：1个对照组、1个施用牧豆树除草剂的处理组、1个安装连通性修正装置（connectivity modifiers, Conmods）的处理组，以及1个同时安装Conmods并施用牧豆树除草剂的处理组。连通性修正装置的设计初衷为减小多年生植被间的空隙尺寸。所有样地规格为8米×8米，且在样地的迎风侧与背风侧各设置1块8米×8米的缓冲区。每个实验样地配备2台BSNE集尘架，分别安装在迎风侧与背风侧8米×8米缓冲区的边缘位置；每台集尘架设有3个集尘器，安装高度分别为10厘米、30厘米与50厘米，且所有集尘器的采样口均朝向主风向。迎风侧的BSNE集尘器用于采集进入样地的粉尘量，背风侧的BSNE集尘器则用于采集离开样地的粉尘量，以此评估样地地表对风蚀粉尘的阻滞效果。本研究目前仍在进行中，每年按季度采集数据。