Parsons Anthony J
Department of Geography, University of Sheffield, Winter Street, Sheffield S10 2TN, United Kingdom.
Sci Total Environ. 2019 Aug 1;676:215-221. doi: 10.1016/j.scitotenv.2019.04.307. Epub 2019 Apr 22.
Soil erosion is a problem of global significance for land management. Attempts to assess soil erosion by water encompass plot studies, monitoring, modelling, and the use of tracers. All of these approaches are shown to have shortcomings, calling into question the reliability of current estimates. There is an urgent need to develop approaches to estimating rates of soil erosion that are consistent with current understanding of erosion processes. Such approaches need always to be reviewed in the light of advances in understanding of processes. Only then can reliable estimates of soil erosion be made on which to base reliable land-use and policy decisions.
土壤侵蚀是土地管理中具有全球意义的问题。通过水来评估土壤侵蚀的尝试包括小区研究、监测、建模以及示踪剂的使用。所有这些方法都存在缺点，这使得当前估计的可靠性受到质疑。迫切需要开发与当前对侵蚀过程的理解相一致的土壤侵蚀速率估算方法。此类方法需要根据对过程理解的进展不断进行审视。只有这样，才能做出可靠的土壤侵蚀估计，从而为可靠的土地利用和政策决策提供依据。
