Effect of the application of two plant residues on the density and porosity of soils subjected to compaction

IF 2 Q3 SOIL SCIENCE

Spanish Journal of Soil Science Pub Date : 2020-10-11 DOI:10.3232/SJSS.2020.V10.N3.06

M. B. Almendro-Candel, María José Poquet Perles, I. G. Lucas, J. Navarro-Pedreño, J. Mataix‐Solera

引用次数: 3

Abstract

This study evaluates the effect on the density and porosity of three differently textured soils when they were subjected to different degrees of compaction, following the addition of two crushed vegetable residues, palm leaf and hay straw. Mixtures were prepared incorporating the plant residues to each soil following the proportions: 10%, 20%, 30% and 40% (V/V). To quantify the incidence of compaction on physical properties, cylindrical PVC containers were used. The soil-waste mixtures were subjected to pressures of 0 (kg/cm2), 1.12 (kg/cm2) and 2.24 (kg/cm2). The results obtained showed that the addition of the residues reduces the apparent density in the three soils, with the use of hay straw having the greatest decrease. As an example, in soil 1, without applying compaction, the apparent density varies with the application of palm leaf from 1685 (kg/m3) to 890 (kg/m3) and with the straw reaches values of 781 (kg/m3).

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施用两种植物残茬对压实土壤密度和孔隙度的影响

本研究评估了三种不同质地土壤在加入两种粉碎的蔬菜残渣、棕榈叶和干草秸秆后，在不同程度的压实下对其密度和孔隙度的影响。将植物残留物按10%、20%、30%和40% (V/V)的比例加入每种土壤中配制混合物。为了量化压实对物理性能的影响，使用了圆柱形PVC容器。土壤-废物混合物分别承受0 (kg/cm2)、1.12 (kg/cm2)和2.24 (kg/cm2)压力。结果表明，秸秆的添加降低了3种土壤的表观密度，其中秸秆的使用降低幅度最大。以土壤1为例，在不施用压实的情况下，随着棕榈叶的施用，表观密度从1685 (kg/m3)变化到890 (kg/m3)，秸秆达到781 (kg/m3)。

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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来源期刊

Spanish Journal of Soil Science SOIL SCIENCE-

CiteScore

2.20

自引率

0.00%

发文量

期刊介绍： The Spanish Journal of Soil Science (SJSS) is a peer-reviewed journal with open access for the publication of Soil Science research, which is published every four months. This publication welcomes works from all parts of the world and different geographic areas. It aims to publish original, innovative, and high-quality scientific papers related to field and laboratory research on all basic and applied aspects of Soil Science. The journal is also interested in interdisciplinary studies linked to soil research, short communications presenting new findings and applications, and invited state of art reviews. The journal focuses on all the different areas of Soil Science represented by the Spanish Society of Soil Science: soil genesis, morphology and micromorphology, physics, chemistry, biology, mineralogy, biochemistry and its functions, classification, survey, and soil information systems; soil fertility and plant nutrition, hydrology and geomorphology; soil evaluation and land use planning; soil protection and conservation; soil degradation and remediation; soil quality; soil-plant relationships; soils and land use change; sustainability of ecosystems; soils and environmental quality; methods of soil analysis; pedometrics; new techniques and soil education. Other fields with growing interest include: digital soil mapping, soil nanotechnology, the modelling of biological and biochemical processes, mechanisms and processes responsible for the mobilization and immobilization of nutrients, organic matter stabilization, biogeochemical nutrient cycles, the influence of climatic change on soil processes and soil-plant relationships, carbon sequestration, and the role of soils in climatic change and ecological and environmental processes.