%0 Journal Article
%T A Study on Measurement of Forest Soil Redox Potential
%A Mu Liu
%A Chengde Luo
%A Xiaoyun Liu
%A Gang Wan
%A Bin Dai
%J Journal of Analytical Sciences, Methods and Instrumentation
%P 137-151
%@ 2164-2753
%D 2013
%I Scientific Research Publishing
%R 10.4236/jasmi.2013.33017
%X <p class=\"MsoNormal\" style=\"text-align:justify;\">
	<span lang=\"EN-US\">Redox potential has principal
influences on formation and attribute of soils and it is necessary to research
the measurement of soil redox potential.</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\">The self-made <a name=\"OLE_LINK70\"></a><a name=\"OLE_LINK71\"></a><a name=\"OLE_LINK65\"></a>potentiometer and two
indigenous FJA-5 potentiometers were employed to measure the Eh values of fir
forest soils <i>in situ</i>,</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\">which lied in Savage Sea Beauty Spot
in <st1:place w:st=\"on\"><st1:placename w:st=\"on\">Sichuan</st1:placename> <st1:placetype w:st=\"on\">Province</st1:placetype></st1:place>.</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\">Simultaneously fresh soils <i>in situ</i> were
collected and made into suspensions with various soil-water ratios and
standing time to measure Eh values.</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\">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.</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\">There is a great difference between Eh
values measured in laboratory and <i>in situ</i>.</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\">Only <i>in situ</i> may the measured Eh values show realistic oxidation-reduction
conditions and formation characteristics of forest soil.</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\">The self-made potentiometer has a
preferable performance than indigenous FJA-5 potentiometers and it can be
applied to measuring forest soil Eh <i>in
situ</i>.</span><span lang=\"EN-US\"><o:p></o:p></span> 
</p>
%K The Self-Made Potentiometer
%K Redox Conditions
%K Suspensions
%K Soil-Water Ratios and Standing Time
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=36229