Field-portable visible/near-infrared spectrophotometer for mapping soil carbon in Canada's ecosystems

用于绘制加拿大生态系统土壤碳图的便携式可见光/近红外分光光度计

• 批准号: 391124-2010
• 负责人: Siciliano, Steven
• 金额: $ 4.19万
• 依托单位: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=443377
• 关键词: Field; portable; visible; near; infrared

We are requesting a field portable instrument that measures the reflectance of visible and near-infrared radiation down a soil profile. This instrument is called a visible/near-infrared (VIS/NIR) spectrophotometeric probe. This probe can accurately assess soil carbon contents in a soil and is used by simply inserting the probe into the soil. Because this instrument measures soil carbon very quickly and at no cost, it will allow us to construct very finely detailed maps of soil carbon in the Arctic, provincial Norths and agricultural ecosystem. We need to do this because soil carbon varies quite a bit across a field and getting a precise estimate using traditional techniques requires a large number of samples which are costly and time consuming. In contrast, this probe will allow us to do the work of a few weeks of laboratory analysis in an afternoon.

我们需要一台现场便携式仪器来测量土壤剖面上可见光和近红外辐射的反射率。这种仪器被称为可见/近红外（VIS/NIR）分光光度探针。这种探针可以准确地评估土壤中的土壤碳含量，并且只需将探针插入土壤中即可使用。因为这个仪器可以快速且免费地测量土壤碳，它将使我们能够在北极、北部省份和农业生态系统中构建非常精细的土壤碳地图。我们需要这样做，因为土壤碳在一块田地里变化很大，使用传统技术获得精确的估计需要大量的样本，这既昂贵又耗时。相比之下，这个探测器将允许我们在一个下午完成几个星期的实验室分析工作。