UNASSIGNED:确定沉积物指纹识别或追踪的最佳做法对于量化来自集水区的沉积物贡献非常重要。尽管沉积物指纹技术的应用取得了合理的成功,此方法的部署仍然与许多问题和限制有关。
UNASSIGNED:在2021年10月为期4天的主题学校期间组织了研讨会和辩论,以提出具体建议,以改善跟踪方法的设计和实施。
未经批准:首先,我们建议更好地利用地貌信息来改进研究设计。邀请研究人员仔细检查感兴趣的集水区的所有可用知识,并获得有关沉积物来源贡献的多条证据。第二,我们认为科学知识可以通过当地知识得到改善,我们提出了一个参与规模,描述了当地人参与研究的不同程度。第三,我们建议使用最先进的沉积物追踪协议进行采样,处理颗粒大小,并在建模和核算所调查的水文气象背景之前检查数据。第四,我们推广建模方面的最佳实践,包括运行多个模型的重要性,选择合适的示踪剂,并报告模型误差和不确定性。第五,我们建议共享跟踪数据和样本的最佳实践,这将增加地球科学中指纹识别技术的知名度。第六,我们建议更好地制定假设可以更统一地提高我们对侵蚀和泥沙输运过程的认识。
UNASSIGNED:通过建议的改进,沉积物指纹,本质上是跨学科的,可以在应对当前和未来与全球变化相关的挑战方面发挥重要作用。
UNASSIGNED:在线版本包含补充材料,可在10.1007/s11368-022-03203-1获得。
UNASSIGNED: Identifying best practices for sediment fingerprinting or tracing is important to allow the quantification of sediment contributions from catchment sources. Although sediment fingerprinting has been applied with reasonable success, the deployment of this method remains associated with many issues and limitations.
UNASSIGNED: Seminars and debates were organised during a 4-day Thematic School in October 2021 to come up with concrete suggestions to improve the design and implementation of tracing methods.
UNASSIGNED: First, we suggest a better use of geomorphological information to improve study design. Researchers are invited to scrutinise all the knowledge available on the catchment of interest, and to obtain multiple lines of evidence regarding sediment source contributions. Second, we think that scientific knowledge could be improved with local knowledge and we propose a scale of participation describing different levels of involvement of locals in research. Third, we recommend the use of state-of-the-art sediment tracing protocols to conduct sampling, deal with particle size, and examine data before modelling and accounting for the hydro-meteorological context under investigation. Fourth, we promote best practices in modelling, including the importance of running multiple models, selecting appropriate tracers, and reporting on model errors and uncertainty. Fifth, we suggest best practices to share tracing data and samples, which will increase the visibility of the fingerprinting technique in geoscience. Sixth, we suggest that a better formulation of hypotheses could improve our knowledge about erosion and sediment transport processes in a more unified way.
UNASSIGNED: With the suggested improvements, sediment fingerprinting, which is interdisciplinary in nature, could play a major role to meet the current and future challenges associated with global change.
UNASSIGNED: The online version contains supplementary material available at 10.1007/s11368-022-03203-1.