Redox potential has principal
influences on formation and attribute of soils and it is necessary to research
the measurement of soil redox potential.The self-made potentiometer and two
indigenous FJA-5 potentiometers were employed to measure the Eh values of fir
forest soils in situ,which lied in Savage Sea Beauty Spot
in SichuanProvince.Simultaneously fresh soils in situ were
collected and made into suspensions with various soil-water ratios and
standing time to measure Eh values.The results demonstrated that the total tendency of Eh values measured by
the self-made potentiometer was gradually falling with soil-water ratios
increasing and standing time prolonging.There is a great difference between Eh
values measured in laboratory and in situ.Only in situ may the measured Eh values show realistic oxidation-reduction
conditions and formation characteristics of forest soil.The self-made potentiometer has a
preferable performance than indigenous FJA-5 potentiometers and it can be
applied to measuring forest soil Eh in
situ.
References
[1]
Q. Y. Huang, “Soil Science,” Agricultural Press in China, Beijing, 2006.
[2]
W. E. Connell and W. H. Patrick, “Sulfate Reduction in Soil: Effects of Redox Potential and pH,” Science, Vol. 59, No. 3810, 1968, pp. 86-87.
doi:10.1126/science.159.3810.86
[3]
S. Gotoh and W. H. Patrick, “Transformation of Manganese in a Waterlogged Soil as Affected by Redox Potential and pH,” Soil Science Society of America Journal, Vol. 36, No. 5, 1972, pp. 738-742.
doi:10.2136/sssaj1972.03615995003600050018x
[4]
S. Gotoh and W. H. Patrick, “Transformation of Iron in a Waterlogged Soil as Influenced by Redox Potential and pH,” Soil Science Society of America Journal, Vol. 38, No. 1, 1974, pp. 66-71.
doi:10.2136/sssaj1974.03615995003800010024x
[5]
A. X. Hou, G. X. Chen and Z. P. Wang, “Methane and Nitrous Oxide Emissions from a Rice Field in Relation to Soil Redox and Microbiological Processes,” Soil Science Society of America Journal, Vol. 64, No. 6, 2000, pp. 2180-2186. doi:10.2136/sssaj2000.6462180x
[6]
L. N. Mandal, “Levels of Iron and Manganese in Soil Solution and the Growth of Rice in Water-Logged Soils in Relation to the Oxygen Status of Soil Solution,” Soil Science, Vol. 94, No. 6, 1962, pp. 387-391.
doi:10.1097/00010694-196212000-00006
[7]
W. H. Patrick, “Nitrate Reduction Rates in a Submerged Soil as Affected by Redox Potential,” Transactions 7th Inernational Congress of Soil Science, Vol. 2, 1960, pp. 494-500.
[8]
W. H. Patrick and A. Jugsujinda, “Sequential Reduction and Oxidation of Inorganic Nitrogen, Manganese and Iron in Flooded Soil,” Soil Science Society of America Journal, Vol. 56, No. 4, 1992, pp. 331-332.
doi:10.2136/sssaj1992.03615995005600040011x
[9]
K. R. Reddy and W. H. Patrick, “Effect of Alternate Aerobic and Anaerobic Conditions on Redox Potential, Organic Matter Decomposition and Nitrogen Loss in a Flooded Soil,” Soil Biology & Biochemistry, Vol. 7, No. 2, 1975, pp. 87-94. doi:10.1016/0038-0717(75)90004-8
[10]
A. Swarup, “Influence of Organic Matter and Flooding on the Chemical and Electrochemical Properties of Sodic Soil and Rice Growth,” Plant and Soil, Vol. 106, No. 1, 1988, pp. 135-141. doi:10.1007/BF02371205
[11]
Z. P. Wang, R. D. De Laune and W. H. Patrick, “Soil Redox and pH Effects on Methane Production in a Flooded Rice Soil,” Soil Science Society of America Journal, Vol. 57, No. 2, 1993, pp. 382-385.
doi:10.2136/sssaj1993.03615995005700020016x
[12]
T. R. Yu, “The Electrochemical Properties and Methodology of Soil,” Science Press, Beijing, 1976.
[13]
C. Y. Huang, “Instructors on Soil Experiment and Practice,” Agricultural Press in China, Beijing, 1992.
[14]
C. J. Li, S. S. Li, S. Chen, et al., “Research on Eh-pH of Granite in Jiaocheng City of Shanxi Province,” Hydrogeology and Engineering Geology, No. 5, 1998, pp. 43-45.
[15]
Z. Li, Y. Wang and J. Kong, “A Study on Measurement of Soil Redox Potential,” Environmental Science and Management, Vol. 33, No. 10, 2008, pp. 172-174.
[16]
K. Marie, P. H. Masscheleyn and C. W. Lindau, “Production of Dinitrogen and Nitrous Oxide in Soil Suspensions as Affected by Redox Potential,” Water, Air and Soil Pollution, Vol. 61, No. 1-2, 1992, pp. 37-45.
doi:10.1007/BF00478364
[17]
W. H. Patrick, B. G. Williams and J. T. Moraghan, “A Simple System for Controlling Redox Potential and pH in Soil Suspensions,” Soil Science Society of America Journal, Vol. 37, No. 2, 1973, pp. 331-332.
doi:10.2136/sssaj1973.03615995003700020048x
[18]
A. Quispel, “Measurement of the Oxidation—Reduction Potentials of Normal and Inundated Soils,” Soil Science, Vol. 63, No. 4, 1947, pp. 265-275.
doi:10.1097/00010694-194704000-00002
[19]
L. Z. Tang, K. Haibara, H. Toda, et al., “Transformation of Fe2+, Eh and pH Values of Forest Soil in Wet Land,” Acta Ecologica Sinica, Vol. 25, No. 1, 2005, pp. 103-107.
[20]
G. H. Willis, R. C. Wander and L. M. Southwick, “Degradation of Trifluralin in Soil Suspensions as Related to Redox Potential,” Journal of Environmental Quality, Vol. 3, No. 3, 1974, pp. 262-265.
doi:10.2134/jeq1974.00472425000300030016x
[21]
K. Yu, Z. Wang and A. Vermoesen, “Nitrous Oxide and Methane Emissions from Different Soil Suspensions: Effect of Soil Redox Status,” Biology and Fertility of Soils, Vol. 34, No. 1, 2001, pp. 25-30.
doi:10.1007/s003740100350
[22]
C. Carrie, J. Wafer, R. Barrett, et al., “Construction of Platinum-Tipped Redox Probes for Determining Soil Redox Potential,” Journal of Environmental Quality, Vol. 33, No. 6, 2004, pp. 2375-2379.
doi:10.2134/jeq2004.2375
[23]
B. Eric-Van, B. Suzanne and T. Georges, “Continuous Multiple Measurement of Soil Redox Potential Using Platinum Microelectrode,” Soil Science Society of America Journal, Vol. 66, No. 6, 2002, pp. 1813-1820.
doi:10.2136/sssaj2002.1813
[24]
S. Fiedler, M. J. Vepraskas and J. L. Richardson, “Soil Redox Potential: Importance, Field Measurements and Observations,” Academic Press, Ireland, 2007.
[25]
W. H. Patrick, R. P. Gambrell and S. P. Faulkner, “Redox Measurements of Soils,” In: D. L. Sparks and A. L. Page, Eds., Methods of Soil Analysis. Part 3. Chemical Methods, Soil Science Society of America, WI, Madison, 1996, pp. 1358-1390.
[26]
S. Du and X. Z. Gao, “Regulations on Technology of Soil Analysis,” Agricultural Press in China, Beijing, 2006.
[27]
W. L. Si, “Analysis and Discussion on Frequently Asked Questions in Soil Eh Measurement,” Sinkiang Science and Technology of Oil, Vol. 7, No. 2, 1997, pp. 68-69.
[28]
S. D. Zhao, “General Chemistry,” Agricultural Press in China, Beijing, 2007.
[29]
L. G. Willis, “Oxidation—Reduction Potentials and the Hydrogen Ion Concentration of a Soil,” Spanish Journal of Agricultural Research, Vol. 45, No. 1, 1932, pp. 571-575.
[30]
H. L. Bohn, “Electromotive Forces of Inert Electrodes in Soil Suspensions,” Soil Science Society of America Process, Vol. 32, No. 2, 1968, pp. 211-215.
doi:10.2136/sssaj1968.03615995003200020019x
[31]
T. R. Yu and Z. C. Chen, “Chemical Processes in Soil Formation,” Science Press, Beijing, 1990.
