RAPID: Evaluation of Changes to Soil Hydrologic Properties in Response to Wildfire in a Semi-arid Sagebrush Steppe Environment with Abandoned Mine Pollution ? Perry Canyon, NV

2018年7月27日，在内华达州雷诺以北30英里处的瓦肖县佩里峡谷地区，一场失控的灌木丛大火点燃。截至8月3日，大火总共烧毁了约4.9万英亩土地，大火仍在继续。佩里峡谷拥有一个与土地管理局(BLM)合作运营的废弃矿场(AML)研究区。在过去的三年里，人们一直在研究佩里峡谷各种来源的污染输送。野火的发生使人们有机会在AML收集火灾后立即的水文数据，然后在接下来的几个月里进行测量，以追踪火灾恢复期间土壤水文的演变。有关非饱和和饱和渗透系数的数据将在野外使用双探头渗透仪和微型圆盘渗透仪相结合的方式收集。将使用Hyprop和压力板法进行保水性和水力传导性的实验室分析。将采用适当的标准化渗透系数测试方法进行渗透系数测试。实验室测试将对未受干扰的岩心样本进行，以保存现场结构。Three Meter Environment Inc.Atmos 41个气象站将收集降水数据并记录土壤湿度和土壤水势数据，以评估火灾后恢复期间土壤水分储存和保持特性的变化。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

On July 27, 2018, an uncontrolled brush fire ignited in the Perry Canyon area of Washoe County, NV 30 miles north of Reno, NV. The fire has burned a total of ~49,000 acres as of August 3 with the fire still in progress. Perry Canyon hosts an abandoned mine land (AML) study area that is operated in collaboration with the Bureau of Land Management (BLM). Pollution transport from various sources in Perry Canyon has been under study for the last three years. The occurrence of the wildfire has presented an opportunity to collect immediate post-fire hydrologic data at an AML, and then subsequent measurements over the next several months to trace the evolution of soil hydrology during the recovery from the fire. Data on the unsaturated and saturated hydraulic conductivity will be collected using a combination of dual-head infiltrometers and minidisc infiltrometers in the field. Laboratory analysis of water retention and hydraulic conductivity will be performed using the HYPROP and pressure plate methods. Hydraulic conductivity testing will be performed with appropriate standardized hydraulic conductivity test methods. Laboratory testing will be on undisturbed core samples to preserve field structure. Three METER Environment Inc. ATMOS 41 weather stations will collect precipitation data and record soil moistureand soil-water potential data over time to evaluate soil-water storage and retention characteristic changes during post-fire recoveryThis award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.