SPATIAL VARIABILITY OF HYDRAULIC CONDUCTIVITY OF SATURATED SOIL IN CONSERVATION UNIT

IF 0.3 Q4 AGRONOMY Revista de Agricultura Neotropical Pub Date : 2022-02-25 DOI:10.32404/rean.v9i1.6532
Glaucia Machado Mesquita, F. C. Santos, Anne Louise Dores, V. Correchel
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Abstract

The study aimed to evaluate the hydraulic conductivity using soil samples with undisturbed structure in the soil layers of 0-5, 5-10, 10-20, and 20-40 cm; 120 soil samples were collected. For the determination of hydraulic conductivity, the constant load permeameter was used. For geostatistical analysis, exploratory data analysis was performed using frequency histograms, determining the main measures of position and dispersion, verifying the trends for the construction of boxplot graphics, which allows the identification of discrepant points. The lowest and highest hydraulic conductivity values were found in the 20-40 cm and 0-5 cm soil layers, respectively; values commonly found in soils under forest conditions. Based on the results, we conclude when the soil sampling for analysis of hydraulic conductivity is random, the minimum distance between the points must be greater than 15.5 m.
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保护区饱和土导水率的空间变异性
该研究旨在使用0-5、5-10、10-20和20-40cm土层中未扰动结构的土壤样品来评估导水性;采集了120个土壤样品。为了测定水力传导率,使用了恒载渗透仪。对于地质统计学分析,使用频率直方图进行勘探数据分析,确定位置和离散度的主要测量,验证箱形图构建的趋势,从而识别差异点。水力传导率值最低和最高分别出现在20-40cm和0-5cm土层中;在森林条件下的土壤中常见的值。根据结果,我们得出结论,当用于水力传导率分析的土壤采样是随机的时,点之间的最小距离必须大于15.5米。
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来源期刊
CiteScore
0.40
自引率
33.30%
发文量
40
审稿时长
14 weeks
期刊最新文献
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