Search Results

1 - 10 of 473 items :

  • organic C fractions x
Clear All
Composition of microbial PLFAs and correlations with topsoil characteristics in the rare active travertine spring-fed fen

extractible lipid phosphate. Oecologia, 40, 51-62. DOI: 10.1007/BF00388810. White, D.C., Pinkart, H.C. & Ringelberg D.B. (1997). Biomass measurements: biochemical approaches. In C.H. Hurst, G. Knudsen, M. McInerney, L.D. Stetzenbach & M. Walter (Eds.), Manual of environment microbiology (pp. 91-101). Washington: American Society for Microbiology Press. Wieder, R.K. & Starr S.T. (1998). Quantitative determination of organic fractions in highly organic, Sphagnum peat soils. Commun. Soil Sci. Plant Anal., 29, 847-857. DOI: 10

Open access
Radiocarbon pottery dating: the chemical compounds of organic fractions, the reliability of 14C dates (preliminary results)

[1] Bobrinsky AA, 1999. Actual problems of the study of the ancient figulines. Samara. The state Samara pedagogical University press: 106pp (in Russian) [2] Bardet M, Foray MF and Trân QK, 2002. High-Resolution Solid-State CPMAS NMR Study of Archaeological Woods. Analytical Chemistry. 74(17): 4386–4390, DOI 10.1021/ac020145j. http://dx.doi.org/10.1021/ac020145j [3] Bonsail C, Cook G, Manson JL and Saderson D, 2002. Direct dating of Neolithic pottery: progress and prospects. Documenta

Open access
Soil Structure and Soil Organic Matter of Selected Soil Types in Different Ecosystems

-427. DOI: 10.1111/j.1351-0754.2004.0608.x Bhattachar yya, R. - Prakash , V. - Kundu , S. - Srivastva , A.K. - Gupta , H.S. 2009. Soil aggregation and organic matter in a sandy clay loam soil of the Indian Himalayas under different tillage and crop regimes. In Agriculture Ecosystem and Environment, vol. 13 2, no. 1-2, 2009, pp. 126-134. Bonde , T.A. - Schn Ürer , J. - Rosswall , T. 1988. Microbial biomass as a fraction of potentially mineralizable nitrogen in soils from long-term field experiments. In Soil Biology and Biochemistry

Open access
Effect of Municipal Sewage Sludge under Salix Plantations on Dissolved Soil Organic Carbon Pools / Wpływ Osadów Ściekowych Na Plantacjach Salix Na Zawartość Węgla Rozpuszczonego W Glebie

References [1] Blair G.J., Lefroy R.D.B., Lisle L.: Soil carbon fractions based on their degree of oxidation and thedevelopment of a carbon management index for agricultural systems , Australian Journal of Agricultural Research, 46 , 1459−1466. [2] Clapp C.E., Stark S.A., Clay D.E., Larson W.E.: Sewage sludge organic matter and soil properties , [in:] The role of organic matter in modern agriculture , edit. Y. Chen, Y. Avnimelech, Martinus Nijhoff, Dordrecht., 209−253. [3] Craswell E.T., Lefroy R

Open access
Iron and nickel fractions in selected organic materials / Frakcje żelaza i niklu w wybranych materiałach organicznych

molibdenu w glebie i życicy wielokwiatowej (Lolium Multiflorum Lam.). Ochrona Środowiska i Zasobów Naturalnych 40: 660–668. SZUMSKA (WILK) M., GWOREK B. 2009. Metody oznaczania frakcji metali ciężkich w osadach ściekowych. Ochrona Środowiska i Zasobów Naturalnych 41: 42–63. TESSIER A., CAMPBELL P.G.C., BISSON M. 1979. Sequential extraction procedure for the speciation of particulate trace metals. Analytical Chemistry 51, 7: 344–351. ZHOU D.M., HAO X.Z., TU C., CHEN H.M., SI Y.B. 1998. Speciation and fractionation of heavy metals in soil

Open access
Phosphorus resources and fractions in peat-muck soils

sequential fractioning of phosphorus compounds was applied for the phosphorus speciation study – initially used in the research of bottom sediments and modified for the purpose of the research of organic sediments [ Jordan et al. 2007 ]. Sequential extraction made it possible to define the following operational fractions ( forms) of soil phosphorus: F1: (1 M NH 4 Cl), labile forms, loosely bound or absorbed, easily accessible; F2: (0.1 M Na 2 S 2 O 4 -NaHCO 3 ), forms bound on the surface of hydrated iron oxides (III) and hydrated manganese oxides (IV), released in

Open access
Natural colloid mobilization and leaching in wettable and water repellent soil under saturated condition

. Colloids and Surfaces A: Physicochem. Eng. Aspects, 432, 8-18. Dilling, J., Kaiser, K., 2002. Estimation of the hydrophobic fraction of dissolved organic matter in water samples using UV photometry. Water Res., 36, 5037-5044. Deurer, M., Bachmann, J., 2007. Modelling water movement in heterogeneous water-repellent soil: 2: Numerical simulation. Vadose Zone J., 6, 446-457. Dymov, A.A., Milanovskii, E.Y., Kholodov, V.A., 2015. Composition and hydrophobic properties of organic matter in the densimetric fractions of soils from

Open access
Distribution and origin of organic matter in the Baltic Sea sediments dated with 210Pb and 137Cs

: 253–393. [32] Struck U, Emeis KC, Voss M, Christiansen C and Kunzendorf H, 2000. Records of southern and central Baltic Sea eutrophication in δ13C and δ15N of sedimentary organic matter, Marine Geology 164(3–4): 157–171, DOI 10.1016/S0025-3227(99)00135-8. http://dx.doi.org/10.1016/S0025-3227(99)00135-8 [33] Szczepańska A, Zaborska A and Pempkowiak J, 2009. Sediment accumulation rates in the Gotland Deep, Baltic Proper obtained by 210Pb and 137Cs methods, Annual Set the Environment Protection 11(1): 77

Open access
Antioxidant properties of methanolic extracts of the leaves of seven Egyptian Cassia species

.1080/09637480601093269. C. V. Junior, A. Rezende, D. H. S. Silva and I. C. V. S. Bolzani, Ethnopharmacological, biological and chemical aspects of the Cassia genus, Quím. Nova   29 (2006) 1279-1286. P. Siddhuraju, P. S. Mohan and K. Becker, Studies on the antioxidant activity of Indian Laburnum ( Cassia fistula L.): a preliminary assessment of crude extracts from stem bark, leaves, flowers and fruit pulp, Food Chem.   79 (2002) 61-67; DOI: 10.1016/S0308-8146(02)00179-6. J. F. Mupangwa, T. Acamonic, J. H. Topps, N. T. Ngongoni and

Open access
Humus Substances of Forest Phaeozems and Gleysols in Dolina Baryczy Landscape Park

badań materii organicznej gleb. Prace Komisji Naukowych PTG 120, 66 ss. JANOWIAK J., SPYCHAJ-FABISIAK E., MURAWSKA B. 1999. Relationship between soil properties and the labile humus fraction content. Humic Subst. Environ.   3 (99): 43-46. KLIMOWICZ Z. 1980. Czarne ziemie Równiny Tarnobrzeskiej na tle zmian stosunków wodnych tego obszaru. Rocz. Glebozn.   31 , 1: 163-207. KONECKA-BETLEY K., CZĘPIŃSKA-KAMIŃSKA D., JANOWSKA E. 1996: Czarne ziemie w staroaluwialnym krajobrazie Puszczy

Open access