Root System Analysis and Influence of Moisture on Soil Electrical Properties

Energies

Antonio M. Silva Filho¹  Wesley P. Calixto¹  Antonio P. Coimbra²  Lucas D. S. Morais³  Glaciano M. Fernandes³  José R. S. Silva³ 

[1] Electrical, Mechanical & Computer Engineering School (EMC), Federal University of Goias (UFG), Goiania 74605-010, GO, Brazil;Institute of Systems and Robotics, University of Coimbra, 3030-290 Coimbra, Portugal;Studies and Researches in Science and Technology Group, Federal Institute of Goias (IFG), Senador Canedo 75250-000, GO, Brazil;

关键词: geoelectric prospecting;    apparent electrical conductivity;    root system;    soil electrical parameters;   

DOI  :  10.3390/en14216951

来源: DOAJ

【 摘 要 】

This paper proposes a methodology for plant root system and soil moisture analysis through the geoelectrical prospecting method. Overall, bench and field experiments are implemented to analyze the behavior of electrical conductivity of the soil in relation to moisture content and plant root system growth. Specifically, Wenner array and lateral profiling technique are used to stratify the soil in horizontal layers, performing in-depth analysis. Millet (Pennisetum glaucum L.), bean (Phaseolus vulgaris L.) and sorghum (Sorghum bicolor L. Moench) are used to analyze the root system behavior. Results show that the soil water dynamics can be observed through soil stratification in horizontal layers and the plant root system is correlated with apparent electrical conductivity of the soil. Thus, geoelectric prospecting methods can be used as an analysis tool, both of soil moisture dynamics and of plant roots, to support decision making regarding soil and crop management.

【 授权许可】

Unknown