quantification of soil organic carbon

土壤有机碳定量

• 批准号: 2814492
• 金额: --
• 依托单位: University of Surrey
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2814492
• 关键词: quantification; soil; organic; carbon

This research will address the direct quantification of soil organic carbon from the soils hyperspectral signatureanticipating the arrival of the next generation of hyperspectral satellites (e.g. Chime, EnMap). The developed knowledgewill contribute to overcome a major obstacle for the implementation of regenerating practices, which is the lack of cost effective, robust and scalable tools to quantify SOC for carbon offsetting. While spectroradiometer-based methods for quantifying SOC under controlled laboratory conditions are well established, this research will focus on their transfer and application to real field conditions. For this purpose, the research questions will focus on the determination of soil spectral features minimally affected by variable environmental conditions such as soil moisture, surface roughness or crop residues and on modelling the relationship of these features to SOC. The model will then be adapted to the available spectral bands in existing and future missions, and their performance tested.

这项研究将解决从土壤中直接量化土壤有机碳的高光谱符号，从而使下一代高光谱卫星的到来（例如，Chime，Enmap）。开发的知识将有助于克服实施再生实践的主要障碍，这是缺乏具有成本效益，强大和可扩展的工具来量化SOC以量化碳的抵消。虽然基于光谱仪在受控实验室条件下量化SOC的方法已得到很好的确定，但这项研究将集中在其转移和应用于实际田间条件上。为此，研究问题将集中于确定由可变环境条件（例如土壤水分，表面粗糙度或作物残留物）影响的土壤光谱特征，以及对这些特征与SOC的关系进行建模。然后，该模型将适应现有和将来任务中的可用光谱频段，并进行了测试。