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高光谱特征中直接量化土壤有机碳的问题，预计下一代高光谱卫星（如Chime，EnMap）的到来。开发的知识将有助于克服实施再生实践的主要障碍，即缺乏成本效益，强大和可扩展的工具来量化碳抵消的SOC。虽然光谱辐射计为基础的方法，在受控的实验室条件下量化SOC是行之有效的，这项研究将集中在他们的转移和应用到真实的现场条件。为此目的，研究问题将侧重于确定受土壤湿度、地表粗糙度或作物残茬等可变环境条件影响最小的土壤光谱特征，并建立这些特征与SOC之间关系的模型。