Differences in soil electrical resistivity tomography due to soil water contents in an integrated agricultural system

被引：0
|
作者：
de Campos Bernardi, Alberto Carlos [1 ]
Pitrat, Thomas [2 ]
Rabello, Ladislau Marcelino [3 ]
Macedo Pezzopane, Jose Ricardo [1 ]
Bosi, Cristiam [4 ]
Mazzuco, Giulia Guillen [5 ]
Bettio, Giovana Maranhao [6 ]
机构：
[1] Embrapa Pecuaria Sudeste, Rodovia Washington Luiz,Km 234,Caixa Postal 339, BR-13560970 Sao Carlos, SP, Brazil
[2] Geocarta, 5 Rue Banque, F-75002 Paris, France
[3] Embrapa Instrumentacao, Rua XV Novembro 1-452,Caixa Postal 741, BR-13560970 Sao Carlos, SP, Brazil
[4] Univ Sao Paulo, Escola Super Agr Luiz de Queiroz, Ave Padua Dias 11, BR-13418900 Piracicaba, SP, Brazil
[5] Secretaria Municipal Turismo & Meio Ambiente Itir, Ave 9,395 Ctr, BR-13530000 Itirapina, SP, Brazil
[6] Embrapa Cerrados, Rodovia BR 020,Km 18,Caixa Postal 08223, BR-73310970 Planaltina, DF, Brazil
来源：
PESQUISA AGROPECUARIA BRASILEIRA | 2019年 / 54卷
关键词：
ARP system; soil sensor; soil water content;
D O I：
10.1590/S1678-3921.pab2019.v54.00774
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
The objective of this work was to characterize the spatial variability of soil electrical resistivity due to different soil moisture contents, in an integrated agricultural system. Soil electrical resistivity (ER) was measured with the Automatic Resistivity Profiling (ARP) contact sensor in two dates, in 2016, in a 9.7-ha area with different soil moisture contents. The obtained maps indicated that ER allowed delimiting the regions within the study area and pointing out differences in the movement and accumulation of water in the soil horizons. Although there is a trend of reduction in ER values with increasing soil moisture, the spatial correlation structure of ER is similar.
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页数：5
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