地中海三种环境下土壤团聚体的稳定性

A. Cerdà
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引用次数: 100

摘要

本文研究了西班牙东南部三种不同地中海景观中植被对土壤团聚体稳定性的影响。研究人员对石灰岩、泥灰岩和粘土的土壤进行了调查,在研究区域的每个北向斜坡上都有两层植被覆盖。采用液滴冲击法、超声分散法和艾默生分散法进行了3种骨料稳定性试验(CND、TDI和UD)。试验结果表明,植被对骨料稳定性有积极影响。然而,植被对土壤团聚体稳定性的影响不如岩性重要。土壤深度和湿度也影响团聚体,但不同土壤类型之间的关系不同。土壤团聚体稳定性反映了一个高度复杂系统的运行,其中植被、岩性、含水量和深度等是主要因素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Soil aggregate stability in three Mediterranean environments

This paper considers the effect of vegetation on soil aggregate stability in three different Mediterranean landscapes in Southeast Spain. Soils on limestone, marls and clays, with two levels of vegetation cover at each north-facing slopes of the study areas, were investigated. Three aggregate stability tests (CND, TDI and UD) based on the drop impact and ultrasonic dispersion methods and the Emerson dispersion test were performed. The results of the experiments show the positive influence of vegetation on aggregate stability. However, vegetation is less important than lithology in influencing soil aggregate stability. Soil depth and moisture also affect aggregation, but the relationships are different for each soil type. Soil aggregate stability reflects the operation of a highly complex system, in which vegetation, lithology, water content and depth, amongst others, are the main factors.

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