遇见数据集

Horizontal sediment mass flux before & after the windy season from vegetation removal plots(Sediment weight at various heights)

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DataONE2018-05-25 更新2024-06-08 收录
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Dataset consists of horizontal dust flux at multiple heights from BSNE dust collectors located in treatment plots (different percent vegetation removed) and adjacent downwind effect plots. Year 2008 was an annual collection. Collection in subsequent years occurred before and after the wind season. The experiment was designed to test the effects of increasing wind erosion on soil and vegetation properties at the Jornada. In order to increase wind erosion rates, vegetation was removed to increase bare surface area and stimulate erosion (the less vegetation present the greater the wind erosion). The basic experimental design includes three treatment blocks. Each block has four treatment plots with different level of vegetation removed (25-100%) and a control treatment. Treatment plots are 25x50m with 25m buffers between. The vegetation removal includes grasses and small shrubs (like XASA and ZIGR), but not mesquite or yucca or any of the larger shrubs). Also, adjacent downwind plots are included in the design. These plots are strictly for monitoring of soil and vegetation properties, so no maintenance is required on these areas.

本数据集包含安装于不同植被移除比例处理样地及邻近下风影响样地中的BSNE集尘器(BSNE dust collectors)在多个高度下采集的水平粉尘通量数据。2008年为全年连续采样周期,后续年份的采样均安排在风季前后进行。本实验设于霍顿拉(Jornada)研究区域,旨在探究风蚀加剧对当地土壤与植被特性的影响。为提升风蚀速率,研究人员通过移除植被以扩大裸土面积、诱发风蚀——植被覆盖率越低,风蚀强度越高。基础实验设置包含3个处理区组,每个区组内设4个植被移除梯度各异(25%~100%)的处理样地与1个对照样地。处理样地规格为25m×50m,样地间设置25m宽的缓冲带。本次植被移除涵盖草本植物与小型灌木(如XASA、ZIGR),但不包含牧豆树(mesquite)、丝兰(yucca)及其他大型灌木。此外,实验设计中纳入了邻近的下风监测样地,此类样地仅用于土壤与植被特性的常规监测,无需开展任何维护作业。

创建时间:
2019-04-04
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