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Field science on South Georgia

Posted by Anne D Jungblut on Mar 7, 2013 7:41:20 PM

In our project, we would like to investigate how microbial communities  differ between soil types. Therefore, we need to characterise the soil types and chemistry of the soils. This will entail measurements of pH, moisture content and nutrients such as nitrogen, phosphorus and iron.

 

The pH and soil moisture were determined straight after the collection on return to King Edward Point.  It makes quite a big mess in the lab, but worth it! Nutrient analyses are more complicated and therefore will be done back in the UK.

                                        IMG_8126.jpg Collection of a scree sample for molecular analsysis

 

IMG_8185.jpgOur little soil lab at KEP

 

We also measure pH, conductivity, oxygen and temperature for every stream that we sample, but this has to be done directly at the sampling site. For continous measurement over several days, a data logger was also installed in a stream near the station.

                                             DSCF1282.jpgSetting up a data logger in a stream


IMG_8024.jpgOur field probes for pH, conductivity, temperature and  oxygen


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