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首页> 外文期刊>Catena: An Interdisciplinary Journal of Soil Science Hydrology-Geomorphology Focusing on Geoecology and Landscape Evolution >An overview of soil loss tolerance.
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An overview of soil loss tolerance.

机译：土壤流失耐受性概述。

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摘要

As the criterion for judging whether a soil has potential risks of erosion, productivity loss and whether a river has downstream over-sedimentation as well as the ultimate criterion for erosion control for the preservation of soil productivity and environmental security in the long term, the level of soil loss tolerance (T value) must be determined in a scientific manner. This overview summarized the development of T value. The factors influencing T value were then discussed, and the calculation methods for T value were also presented and evaluated. Finally, it was proposed that the evaluation of T value should be based on three criteria (referred to as T1, T2 and T3, respectively) with respective definitions and research fields involved. Two key issues, which can prevent the damage by soil erosion, i.e. tolerance for agrochemicals and self-restoration capacity of ecological environments should be addressed in the near future.
机译：作为判断土壤是否具有潜在的侵蚀风险，生产力损失以及河流是否存在下游沉沙的标准，以及长期控制侵蚀以保持土壤生产力和环境安全的最终标准，必须以科学的方式确定土壤流失耐受性（ T 值）。此概述总结了 T 值的发展。讨论了影响 T 值的因素，提出并评价了 T 值的计算方法。最后，建议对 T 值的评估应基于三个标准（分别称为 T 1 ， T < / i> 2 和 T 3 ），分别包含定义和研究领域。可以防止土壤侵蚀破坏的两个关键问题，即对农药的耐受性和生态环境的自我恢复能力，应在不久的将来得到解决。

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