Soil Thermal Diffusivity of a Gleyic Solonetz Soil Estimated by Different Methods in the Brazilian Pantanal
Soil Thermal Diffusivity of a Gleyic Solonetz Soil Estimated by Different Methods in the Brazilian Pantanal作者机构：Postgraduate Program in Environmental Physics Physics Institute Federal University of Mato Grosso (UFMT) Cuiaba Brazil
出 版 物：《Open Journal of Soil Science》 (土壤科学期刊（英文）)
年 卷 期：2013年第3卷第1期
页 面：15-22页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：Water Content MonodominantForest Soil Thermal Properties Soil Temperature Profile
摘 要：The soil temperature is an important microclimatic factor due to the interactions between soil and plant, and the energy exchange with the atmosphere. The soil energy exchange is affected by the incident solar radiation, type of coverage and mainly by the soil thermal properties. Among the soil thermal properties, the soil thermal diffusivity is highlighted because it affects the soil temperature profile and soil heat flux transport and distribution. Thus, the aim of this study was to evaluate different estimates of soil thermal diffusivity of a Gleyic Solonetz soil in the Brazilian Pantanal. The soil thermal diffusivity was determined by the amplitude, logarithmic, arctangent and the phase methods between 0.01 and 0.03 m, 0.01 and 0.07 m and 0.01 and 0.15 m depth. The soil thermal diffusivity estimated by the four methods showed significant differences and varied over the study period as a function of volumetric soil water content. The soil thermal diffusivity estimated by logarithmic methodshowed better performance at different depths, followed by the method of phase.
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