Contribution of soil organic carbon and C3 sugar to the total CO2 efflux using 13C abundance
Yazarlar (1)
Prof. Dr. Rasim KOÇYİĞİT Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SCOPUS dergilerinde yayınlanan tam makale)
Dergi Adı Plant Soil and Environment
Dergi ISSN 1214-1178 Dergi Bilgileri (2006)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 01-2006
Kabul Tarihi – Yayınlanma Tarihi 31-05-2006
Cilt / Sayı / Sayfa 52 / 5 / 193–198 DOI 10.17221/3429-pse
Makale Linki https://www.agriculturejournals.cz/publicFiles/50721.pdf
UAK Araştırma Alanları
Toprak Bilimi
Özet
The differences in C isotope ratio of C3 and C4 plant species have been used to determine relative contributions of carbon (C) sources to total CO2 efflux. The objective of this study was to estimate the contribution of soil organic C and C3 sugar to total CO2 of corn and wheat monocultures during a short-term incubation. Control soils and soils amended with sugar were incubated at 25°C for 48 hours and total CO2 concentration and δ13C values of evolved CO2 were measured. The proportional contribution of C sources on CO2 efflux was determined by using isotopic composition of soil organic C and C3 sugar. δ13C values of soils are highly affected by the type of vegetation and the soil management. The C3 sugar addition in soils double the CO2 efflux in the corn soil, but it did not affect CO2 efflux in the wheat soil. This indicated a larger turnover of microbial biomass in the corn soil. The greatest significant (P < 0.05) difference in δ13C values between the control and sugar added soils occurred at 12 hours in the corn soil (11.2‰) and at 24 hours in the wheat soil (9.4‰). The estimated relative contribution of sugar to CO2 efflux was stronger at 12 hours incubation in the corn soil.
Anahtar Kelimeler
13C natural abundance | CO2 source | Soil organic carbon | Sugar
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Atıf Sayıları
Scopus 1
Contribution of soil organic carbon and C3 sugar to the total CO2 efflux using 13C abundance
İletişim
  • Gaziosmanpaşa Üniversitesi, Taşlıçiftlik Yerleşkesi, 60250 Merkez / Tokat
  • unis@gop.edu.tr 3562521616
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