{"title":"Methodological Aspects of Studying Soil Erodibility Using Washout Technique","authors":"S. F. Krasnov, A. V. Gorobets, O. G. Bushueva","doi":"10.1134/s1064229324600350","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Results of previous experimental assessment of soil erodibility, using the methodology of washing out model samples by a water stream at different installations (hydraulic flume, jetting unit, and water tube), were usually strongly variable. To solve this problem, a new approach to the formation of samples was elaborated. It differs from the previous one by loading the sample through a removable side wall of the horizontally placed cartridge. The layered loading and compaction of samples remains unchanged. The normal position of sample layers to the flow contrary to the parallel position practiced formerly enabled us to obtain a more uniform sample resistance to the flow. The use of a Poseidon measuring unit developed to define mean depth of the wave flow provided not only many-fold increase in the number of measurements of washout intensity during the experiment (from 1 to 14–15), but also enabled us to assess the quality of sample preparation, which increased accuracy and reliability of the study. The percentage standard deviation for erodibility was almost always lower in case of the horizontal loading as compared to the vertical one both between and within the series (by 13 and 12% on average, respectively).</p>","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"13 1","pages":""},"PeriodicalIF":1.4000,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Eurasian Soil Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1134/s1064229324600350","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"SOIL SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
Results of previous experimental assessment of soil erodibility, using the methodology of washing out model samples by a water stream at different installations (hydraulic flume, jetting unit, and water tube), were usually strongly variable. To solve this problem, a new approach to the formation of samples was elaborated. It differs from the previous one by loading the sample through a removable side wall of the horizontally placed cartridge. The layered loading and compaction of samples remains unchanged. The normal position of sample layers to the flow contrary to the parallel position practiced formerly enabled us to obtain a more uniform sample resistance to the flow. The use of a Poseidon measuring unit developed to define mean depth of the wave flow provided not only many-fold increase in the number of measurements of washout intensity during the experiment (from 1 to 14–15), but also enabled us to assess the quality of sample preparation, which increased accuracy and reliability of the study. The percentage standard deviation for erodibility was almost always lower in case of the horizontal loading as compared to the vertical one both between and within the series (by 13 and 12% on average, respectively).
期刊介绍：
Eurasian Soil Science publishes original research papers on global and regional studies discussing both theoretical and experimental problems of genesis, geography, physics, chemistry, biology, fertility, management, conservation, and remediation of soils. Special sections are devoted to current news in the life of the International and Russian soil science societies and to the history of soil sciences.
Since 2000, the journal Agricultural Chemistry, the English version of the journal of the Russian Academy of Sciences Agrokhimiya, has been merged into the journal Eurasian Soil Science and is no longer published as a separate title.
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