样品处理对单一湿筛骨料稳定性分析的影响

IF 2.3 4区 农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY Agricultural & Environmental Letters Pub Date : 2022-10-18 DOI:10.1002/ael2.20094
Glenn Arthur Garcia, Jason G. Warren, Sergio Abit, Chime Garcia, Grace Flusche Ogden
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引用次数: 0

摘要

土壤团聚体稳定性被广泛认为是土壤健康的一个指标。然而,目前对这种土壤特性的测试程序缺乏标准化。目前,样品制备常用风干法和手工研磨法,耗时长,劳动强度大。本研究评估了烘箱干燥(65°C)骨料和用圆盘或连片机械研磨机处理,与空气干燥和人工研磨相比,可以提高骨料稳定性分析的效率。表层土壤样本采集自俄克拉何马州22块土地的森林、草地、免耕和耕地,质地从砂壤土到粘壤土不等。烘箱干燥样品的稳定组分与空气干燥分析结果高度相关。机械研磨样品的稳定组分也与人工研磨样品高度相关。烘箱干燥与任一研磨方法相结合是提高土壤团聚体稳定性分析效率的一种合适方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Sample processing impacts on single wet sieve aggregate stability analysis

Soil aggregate stability is widely considered an indicator of soil health. However, there is a lack of test procedure standardization for this soil property. Presently, air-drying and manual grinding are commonly used in preparing samples for testing, which are time-consuming and labor intensive. This study evaluated oven-drying (65 °C) aggregates and processing by either disk or flail mechanical grinders as a way to improve efficiency of conducting aggregate stability analysis as compared with air drying and manual grinding. Surface soil samples were collected from forest, grassland, no-till, and cultivated areas across 22 fields in Oklahoma with textures ranging from sandy loam to clay loam. The stable fractions of oven-dried samples were highly correlated to the results of the analysis that used air-drying. The stable fractions of mechanically ground samples were also highly correlated with manually ground samples. Oven-drying in combination with either of the grinding methods is a suitable way of improving the efficiency of soil aggregate stability analysis.

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来源期刊
CiteScore
3.70
自引率
3.80%
发文量
28
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