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Negoita, Teodor Gheorghe; Stefanic, Gheorghe; Irimescu-Orzan, Mirela Emilia; Palanciuc, Vasilica; Oprea, Georgeta (2002): Tab.2+3: Potential of biotic and enzymatic activities and chemical features in different soils from Spitsbergen. PANGAEA,, Supplement to: Negoita, TG et al. (2002): Microbial, chemical and enzymatic properties in Spitsbergen Soils. Polarforschung, 71(1/2), 41-46, hdl:10013/epic.29871.d001

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Chemical analyses showed that on the western coast of Spitsbergen some soils have a very high content of organic matter (2.15-5.63 Ct %) in the top layer while other soils show significantly lower quantities (0.75-0.82 Ct %). With respect to the total nitrogen content (Nt %) a similar situation can be found. Investigations in upper soil horizons, carried out for 5 places in Spitsbergen, showed that one of the soils studied was very little developed with 51,000 colony forming units (cfu) /g dried soil while four soils were more developed with 233,600-695,000 cfu/g dry wt. Heterotrophie, aerobic, non-sporogenous and Gram-negative bacteria are typical for the rhizosphere. Micromycetes, however, were very scarce, soil respiration and cellulolytic potentials were similar to those found in acid and cold soils of Romania (temperate climate). The five soils were enzymatically tested for: catalase, saccharase, urease and total phosphatase potentials. It is important to underline that the biotic and enzymatic potentials of the four more developed soils from Spitsbergen are comparable with the poorer soils from Romania. In Spitsbergen the period with a climate favorable for biological processes is too short (2-3 months) and consequently the organic layer is only 9-12 cm thick.
Latitude: 78.100000 * Longitude: 14.000000
Date/Time Start: 1996-07-01T00:00:00 * Date/Time End: 1996-07-01T00:00:00
Minimum DEPTH, sediment/rock: 0.045 m * Maximum DEPTH, sediment/rock: 0.160 m
aI-aV * Latitude: 78.100000 * Longitude: 14.000000 * Date/Time: 1996-07-01T00:00:00 * Location: Spitsbergen, Svalbard * Campaign: 6RPE (Sixth Romanian Polar Expedition) * Basis: Sampling on land * Method/Device: Soil profile (SOIL) * Comment: 5 samples
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmNegoita, Teodor GheorgheGeocode
2Depth, top/minDepth topmNegoita, Teodor Gheorghe
3Depth, bottom/maxDepth botmNegoita, Teodor Gheorghe
4Sample code/labelSample labelNegoita, Teodor Gheorghe
5RespirationRespNegoita, Teodor Gheorghe[mg CO2 to 100g soi]
6CelulolyseCelu%Negoita, Teodor Gheorghe[% lost to 100g cotton tissue]
7CatalaseCatalNegoita, Teodor Gheorghe[cm**3 evolved O2 min**-1 to 100g soil]
8SaccharaseSaccNegoita, Teodor Gheorghe[mg hydrolyzed saccharose to 100g soil]
9PhosphatasePhosphNegoita, Teodor Gheorghe[mg P released to 100g soil]
10Carbon, organic, totalTOC%Negoita, Teodor GheorgheInteraction BA
11Nitrogen, totalTN%Negoita, Teodor GheorgheInteraction BA
12Phosphorus, organicP org%Negoita, Teodor GheorgheInteraction BA
13pHpHNegoita, Teodor GheorgheSoil reaction/conductivity, Interaction BA
180 data points

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