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

RAPID：在废弃矿山污染的半干旱山艾树草原环境中评估野火对土壤水文性质变化的响应？

• 批准号: 1849725
• 负责人: Scott McCoy
• 金额: $ 3.15万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-15 至 2020-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1849725&HistoricalAwards=false
• 关键词: RAPID; Evaluation; Changes; Soil; Hydrologic

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.

2018年7月27日，在内华达州里诺以北30英里的瓦肖县佩里峡谷地区，一场不受控制的灌木丛火灾点燃。截至8月3日，大火共烧毁了约49,000英亩土地，大火仍在继续。佩里峡谷拥有一个废弃的矿山土地（AML）研究区，该研究区与土地管理局（BLM）合作运营。过去三年来，一直在研究佩里峡谷各种来源的污染物输送。野火的发生提供了一个机会，可以在AML收集火灾后立即的水文数据，然后在接下来的几个月内进行后续测量，以跟踪火灾恢复期间土壤水文的演变。将使用双头入渗仪和微型圆盘入渗仪在田间组合收集关于非饱和和饱和导水率的数据。将使用HYPROP和压力板法对保水性和水力传导性进行实验室分析。将采用适当的标准化导水率试验方法进行导水率试验。实验室测试将在未受干扰的岩心样本上进行，以保护现场结构。三米环境公司ATMOS 41气象站将收集降水数据，并记录土壤水分和土壤水势数据，以评估火灾后恢复期间土壤水分储存和保留特性的变化。该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的知识价值和更广泛的影响审查标准进行评估来支持。