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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 >Considering lacustrine erosion records and the De Ploey erosion model in an examination of mountain catchment erosion susceptibility and precipitation reconstruction
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Considering lacustrine erosion records and the De Ploey erosion model in an examination of mountain catchment erosion susceptibility and precipitation reconstruction

机译：考虑湖泊侵蚀记录和De Ploey侵蚀模型在山地集水区腐蚀敏感性和降水重建中的考察中

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摘要

Reconstruction of paleo-precipitation can provide an insight into past climate and precipitation. De Ploey et al. (1995) presents a highly simplified erosion equation to consider precipitation and erosion susceptibility. This empirical model allows estimation of total precipitation and erosion susceptibility across a range of catchment characteristics (including catchment area, slope, elevation, vegetation cover) and when limited catchment or meteorological data is available. The presented study tests the De Ploey equation using dated lacustrine records of catchment soil deposition both spatially and temporally. The objective is to examine the De Ploey equation's ability and efficiency in reconstructing past long-term precipitation using sedimentological parameters. The erosion susceptibility factor is described as a 'black box' value by De Ploey et al. (1995). This research unravels the erosion susceptibility variable, identifying it to change spatially and temporally according to precipitation, vegetation cover and composition (the extent of tree establishment across the catchment), total lacustrine deposition and geochemical signatures in the archive. Calculation of the erosion sustainability variable and it's use within the De Ploey erosion equation illustrate a reconstruction of an indicative mean annual precipitation and erosion susceptibility change over the recent period (similar to 100 years).
机译：重建古降水可以提供对过去的气候和降水的洞察。 de ploey等。 （1995）呈现出高度简化的侵蚀方程，以考虑降水和腐蚀易感性。该实证模型允许在一系列集水区（包括集水区，斜坡，升降，植被覆盖）和有限的集水区或气象数据可用时估计总降水和腐蚀敏感性。本研究在空间和时间上使用日期的土壤沉积的日期曲线记录来测试De Ploey方程。目的是使用沉积学参数来研究De Ploey方程的能力和效率重建过去的长期降水。 De Ploey等人的侵蚀敏感因子被描述为“黑匣子”值。 （1995）。该研究无解释了侵蚀易感性变量，识别它根据沉淀，植被覆盖和组成（整个集水区的树立的程度），涂层沉积总沉积和地球化学签名的空间和时间。侵蚀可持续性变量的计算及其在De Ploey侵蚀方程中的使用说明了最近的时间（类似于100年）的指示性平均降水量和腐蚀易感性变化的重建。

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