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ERM-01

Evaluating cultivation level of sandy soils in European Russia with electro-geophysical methods

Electrical resistivity vs cultivation degree of sandy soils Update: Full PDF of the paper is now available!

Electrical resistivity of cultivated sandy soils of humid areas is a complex characteristic based on three fundamental properties of soil matrix, such as soil texture, total organic matter (carbon content) and cation exchange capacity (CEC). Relationship of electrical resistivity (ER) with those properties has been approximated with exponential equation ER=a*exp(-b*x), where x is any of the properties above. The correlation coefficients for ER as function of CEC, texture, or organic matter were between 0.82 and 0.91 for the soils of Klin-Dmitrov watershed near Moscow and Kirov, which suggests their applicability for other humid areas. We present a new approach to approximate exponential relationship ER=a*exp(b*x) with a linear “piece-wise” function based on the age of cultivation for each field.This approach was used to develop management zones based on ER to separate uniform areas of similar organic matter, CEC and clay content. Those basic properties are the foundation of soil fertility in humid areas. They influence biomass and bioactivity of soil microorganisms, thus the exponential relationship between ER and soil microorganisms was also observed. The approach based of electrical resistivity or conductivity was used to evaluate fertility and degree of cultivation of sandy soils in humid areas and for detail soil mapping and delineation of management zones in adaptive precision agriculture. The field and laboratory electrical geophysical methods are recommended for quick and accurate soil mapping and management in sustainable farming.

*at SAGEEP 2013, March 17-21 in Denver, CO, Larisa Golovko, Ph.D. will also present "Basic Theory of Measuring Electrical Resistivity, Conductivity and Self-Potential in Soils and Plants" with LandMapper ERM-02 and other commercially available geophysical equipment at post-conference workshop "Agricultural Geophysics: Theory and Methods".
SAGEEP 2013 logo
Cite this presentation as:

Anatoly Pozdnyakov, P.I. Eliseev, Larisa Golovko, Lev A. Pozdnyakov, Maria S. Dubrova, and E.P. Makarova. “Evaluating Cultivation Level of Sandy Soils in European Russia with Electro-geophysical Methods.” In New Views of the Earth. Denver, CO: Environmental and Engineering Geophysical Society, 2013. http://www.eegs.org/AnnualMeetingSAGEEP/SAGEEP2013/SessionsAbstracts.aspx

 

Locations

Denver 39° 44' 15.2412" N, 104° 59' 4.9848" W
Klin, MOS 56° 19' 18.5304" N, 36° 42' 30.8772" E
KIR 58° 36' 16.8984" N, 49° 39' 58.5504" E

Happy New Year 2013 from Landviser LLC

LandMapper ERM-01 holiday sale - while supplies last!

We wish all our customers, friends, and collegues Merry Christmas, Happy New Year and wonderful holiday season!LandMapper is portable and scalable geophysical device

It has been a remarkable year for Landviser! We’ve completed several exciting projects with the focus on expanding capabilities of our LandMapper geophysical devices and helped many of our customers with their research. Our LandMapper geophysical devices have been gaining popularity around the globe. To extend our warmest Holiday wishes we are offering unprecidented discount of 20% on basic ERM-01 model from the current price of $1579. The new reduced price for ERM-01 of $1263 will be in effect until December 31, 2012 or while supplies last. Regular educational and dealers's discounts are still apply on the top of newly reduced price as stated in 

Current complete catalog of Landviser, LLC

To claim your ERM-01 now at a discounted price, email or call us (+1-609-412-0555) and mention promotion code 2012-12-ERM01. This offer is "first come, first serve" and is only available on pre-paid terms via credit card or wire transfer.Tax Deduction Info on www.Section179.Org!

Special Note for USA customers: Landviser's equipment and software qualify for tax deduction under Section 179. You still have time to purchase ERM-01, ERM-02 or RES2DINV/RES3DINV in 2012, before this deduction expires!

Landviser, LLC develops and sells portable handheld geophysical devices, Landmapper ERM-01 and ERM-02 for measuring electrical properties (electrical resistivity, conductivity, and potential)  in soils, plants and other semisolid and liquid media since 2003. This equipment is small, fully computer-integrated, and easy to use. It is very competitively priced and come handy many environmental, archaeological and agricultural applications, especially mapping and monitoring soil salinity and pollution. Information flyers can be downloaded from the links below:

More information on applications of both models is available in free publication in FastTIMES magazine:

Golovko, Larisa, Anatoly Pozdnyakov, and Antonina Pozdnyakova. “LandMapper ERM-02: Handheld Meter for Near-Surface Electrical Geophysical Surveys.” FastTIMES (EEGS) 15, no. 4 - Agriculture: A Budding Field in Geophysics (December 2010): 85–93. http://www.landviser.net/webfm_send/69

Location

Landviser LLC Houston 29° 45' 36.6948" N, 95° 22' 9.804" W

LandMapper ERM-02: handheld meter for near-surface electrical geophysical surveys (FastTIMES December 2010)

was published in December, 2010 issue of FastTIMES, online peer-reviewed journal of EEGS. To cite this publication use:FastTIMES dec 2010 Agriculture: A budding field in Geophysics

Golovko, Larisa, Anatoly Pozdnyakov, and Antonina Pozdnyakova. “LandMapper ERM-02: Handheld Meter for Near-Surface Electrical Geophysical Surveys.” FastTIMES (EEGS) 15, no. 4 - Agriculture: A Budding Field in Geophysics (December 2010): 85–93. http://www.landviser.net/webfm_send/69

Registered users can download PDF of full text of proceedings paper from our website. Or browse online version below and leave your comments. You might also like to go to EEGS website to get PDFs of other publications on applications of geophysics to near-surface environmental problems published in this popular FREE online scientific magazine.

Abstract

On-the-go sensors, designed to measure soil electrical resistivity (ER) or electrical conductivity (EC) are vital for faster non-destructive soil mapping in precision agriculture, civil and environmental engineering, archaeology and other near-surface applications. Compared with electromagnetic methods and ground penetrating radar, methods of EC/ER measured with direct current and four-electrode probe have fewer limitations and were successfully applied on clayish and saline soils as well as on highly resistive sandy soils, such as Alfisols and Spodosols. However, commercially available contact devices, which utilize a four-electrode principle, are bulky, very expensive, and can be used only on fallow fields. Multi-electrode ER-imaging systems applied in deep geophysical explorations are heavy, cumbersome and their use is usually cost-prohibited in many near-surface applications, such as forestry, archaeology, environmental site assessment and cleanup, and in agricultural surveys on farms growing perennial horticultural crops, vegetables, or turf-grass. In such applications there is a need for accurate, portable, low-cost device to quickly check resistivity of the ground on-a-spot, especially on the sites non-accessible with heavy machinery.

Location

Laramie, WY 41° 18' 40.9212" N, 105° 35' 27.9636" W

References

Bedmar, A.P., and Araguás, L.A., 2002, Detection and prevention of leaks from dams: Taylor & Francis, Exton, PA.

Carrow, R.N., and Duncan, R.R., 2004, Soil salinity monitoring: present and future: Golf course management, no. November, p. 89-92.

Corwin, R., 1990, The self-potential method for environmental and engineering applications: Geotechnical and Environmental Geophysics, Soc. Expl. Geophysics, Tulsa, OK, p. 127-143.

Seven-step approach for complete near-surface resistivity survey of farmland with LandMapper

Despite numerous EC-mapping case studies conducted in many countries, only a few studies have demonstrated a complex approach to electrical geophysical site survey. In most studies only one technique of EC-mapping, either EM, GPR or four-electrode method was employed. This is understandable since most commercially available EC/ER measuring equipment operate in limited range of resistivities and depths (1-2 manufacturer-set depths are typical).

Locations

Protvino, MOS
Russia
55° 44' 34.0548" N, 37° 36' 55.4436" E
United States
42° 52' 48.8676" N, 104° 45' 56.25" W

Table 1. Compare LandMapper ERM-01 and ERM-02

Table 1.  Compare LandMapper ERM-01 and ERM-02

Feature

LandMapper ERM-01

LandMapper ERM-02

Electrical Resistivity, Ohm m

Introducing LandMapper ERM-01

To address those applications Landviser, LLC has developed and commercialized first model of LandMapper ERM-01 in 2004, which was able to measure electrical resistivity with central-symmetric four-electrode probes of Shlumberger and Wenner configurations to the depth of five meters. Device became popular among agricultural researchers in USA and Europe, and was tested for fast mapping and monitoring of agricultural and horticultural lands (Pozdnyakova et al., 2004; Paillet et al., 2010; Duncan et al., 2008; Carrow and Duncan, 2004).

LandMapper ERM-02: handheld meter for near-surface electrical geophysical surveys

published in December, 2010 issue of FastTIMES, online peer-reviewed journal of EEGS. To cite this publication use:FastTIMES dec 2010 Agriculture: A budding field in Geophysics

Golovko, Larisa, Anatoly Pozdnyakov, and Antonina Pozdnyakova. “LandMapper ERM-02: Handheld Meter for Near-Surface Electrical Geophysical Surveys.” FastTIMES (EEGS) 15, no. 4 - Agriculture: A Budding Field in Geophysics (December 2010): 85–93. http://www.landviser.net/webfm_send/69

Abstract

On-the-go sensors, designed to measure soil electrical resistivity (ER) or electrical conductivity (EC) are vital for faster non-destructive soil mapping in precision agriculture, civil and environmental engineering, archaeology and other near-surface applications. Compared with electromagnetic methods and ground penetrating radar, methods of EC/ER measured with direct current and four-electrode probe have fewer limitations and were successfully applied on clayish and saline soils as well as on highly resistive sandy soils, such as Alfisols and Spodosols. However, commercially available contact devices, which utilize a four-electrode principle, are bulky, very expensive, and can be used only on fallow fields. Multi-electrode ER-imaging systems applied in deep geophysical explorations are heavy, cumbersome and their use is usually cost-prohibited in many near-surface applications, such as forestry, archaeology, environmental site assessment and cleanup, and in agricultural surveys on farms growing perennial horticultural crops, vegetables, or turf-grass. In such applications there is a need for accurate, portable, low-cost device to quickly check resistivity of the ground on-a-spot, especially on the sites non-accessible with heavy machinery.

Electrical Fields and Soil Properties (17th World Congress of Soil Science)

The most downloadable PDF publication on Landviser, LLC website is our proceedings paper on 2002 World Congress of Soil Science. So we decided to publish it on our site as our first interactive eBook. It a short synopsis of our research on application of electrical geophysical methods to study soil genesis and provides theoretical background to all applied case studies. To cite this presentation use:

Pozdnyakov, Anatoly, and Larisa Pozdnyakova. “Electrical Fields and Soil Properties.” In 17 World Congress of Soil Science, Symp. 53:Paper #1558. Bangcock, Tailand, 2002. http://www.landviser.net/webfm_send/1.
Registered users can download PDF of full text of proceedings paper from our website. Or browse online version below and leave your comments. You might also like to go to IUSS website to get PDFs of other publications on World Congress of Soil Science.

 Abstract

The electrical fields in the surface of soils appear as many different kinds. Methods of self- potential (SP), electrical profiling (EP), vertical electrical sounding (VES), and non-contact electromagnetic profiling (NEP) was used to measure the electrical properties of basic soil types, such as Spodosols, Alfisols, Histosols, Mollisols, and Aridisols (USA Soil Classification) of Russia in situ. The density of mobile electrical changes, reflected in measured electrical properties, was related to many soil physical and chemical properties. Soil chemical properties (humus content, base saturation, cation exchange capacity (CEC), soil mineral composition, and amount of soluble salts) are related to the total amount of charges in soils. Soil physical properties, such as water content and temperature, influence the mobility of electrical charges in soils. The electrical parameters were related with soil properties influencing the density of mobile electrical charges in soils by exponential relationships based on Boltzmann's distribution law of statistical thermodynamics (r=0.657-0.990). Generally, the electrical methods can be used for in situ soil mapping and monitoring when the studied property lone highly influences the distribution of mobile electrical charges in the soil. The electrical properties were used to improve soil characterization for soil morphology and genesis studies; to develop accurate soil maps for precise agriculture practices; and to evaluate soil pollution, disturbance, and physical properties for engineering, forensic, and environmental applications.

Locations

Bangcock 13° 45' 7.9992" N, 100° 29' 38.0004" E
59° 44' 53.8008" N, 41° 23' 47.3424" E
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