Carbon and nitrogen balances in soil under SRC willow using DNDC model
PBN-AR
Instytucja
Instytut Uprawy Nawożenia i Gleboznawstwa - Państwowy Instytut Badawczy
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Journal of Food Agriculture & Environment
ISSN
1459-0255
EISSN
Wydawca
WFL PUBL
DOI
URL
Rok publikacji
2013
Numer zeszytu
3/4
Strony od-do
1920-1925
Numer tomu
11
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
en
Willow
DNDC
soil carbon
greenhouse gas
nitrous oxide
nitrates leaching
Open access
Tryb otwartego dostępu
Otwarte czasopismo
Wersja tekstu w otwartym dostępie
Licencja otwartego dostępu
Inna
Czas opublikowania w otwartym dostępie
Streszczenia
Język
en
Treść
Unsustainable production of agricultural biomass for electricity and heat can increase greenhouse gas emission and nitrates leaching. The DNDC (DeNitrification and DeComposition) model was used to estimate carbon sequestration and field losses of nitrogen, especially N2O emission in willow production. The model is capable of predicting willow yields with a relatively low error (RRMSE = 11.5%). DNDC estimated a significant carbon sequestration under willow (1.41-4.11 Mg eq. CO2 ha-1 yr-1). The N2O field emissions generated by the DNDC model were compared with IPCC Tier 1 emission estimates. The average annual N2O emission generated by the model was 3.7 kg N ha-1 (1.35% of nitrogen available for plant); whereas N2O emission using IPCC methodology was insignificantly lower (3.5 kg N ha-1). Nitrate leaching was at a range of 8.96-21.24 kg N ha-1 yr-1. We did not find a statistically significant relationship between the annual soil carbon growth and nitrogen losses from soil. An analysis into the sensitivity of the model indicated a considerable influence of precipitation on NO3 - leaching (99% of variability) as well as a strong relationship between temperature and precipitation inputs and N2O emission. The DNDC model is a useful tool in the assessment of carbon and nitrogen balance in soil under SRC willow.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
570142