STTR Phase I: Soil Carbon Monitor

这个小型企业技术转让（STTR）第一阶段项目涉及开发基于现场的分析仪器，以确定土壤中的碳含量。该仪器将采用激光诱导击穿光谱，利用探测原子碳紫外发射。该工作计划将侧重于使用标准土壤样品作为参考材料的原理验证演示。未知成分的样品将使用所提出的技术进行分析。将确定精密度和准确度的估计值，并与使用传统的基于燃烧的分析技术获得的值进行比较。还将设计一种经济的现场仪器。大量的碳通过生物活动沉积在土壤中，因此，可能提供一种减轻拟人化产生的二氧化碳影响的手段。因此，需要获得更准确的陆地碳清单和测量通量，这将需要比利用现有技术经济地提供的测量量多出几个数量级。本项目将尝试开发一种提供此类测量的经济手段。

This Small Business Technology Transfer (STTR) Phase I Project concerns the development of field-based analytical instrumentation for the determination of carbon content in soil. The instrumentation will employ laser-induced breakdown spectroscopy utilizing detection of atomic carbon ultraviolet emission. The work plan will focus on a proof-of-principle demonstration using standard soil samples as reference materials. Samples of unknown composition will then be analyzed using the proposed technology. Estimates of precision and accuracy will be determined and compared with values obtained using conventional combustion-based analytical techniques. An economical field-ready instrument will also be designed.Significant amounts of carbon are deposited in the soil by biological activity and, as such, might offer a means of mitigating the effects of anthropomorphically produced carbon dioxide. The resulting need to acquire more accurate terrestrial carbon inventories and measure fluxes will require orders of magnitude more measurements than can be delivered economically using current technology. This project will attempt to develop an economical means of providing such measurements.