Abstract
The SOC change index, defined as the normalized difference between the actual Soil Organic Carbon and the value assumed at an initial reference year, is here tailored to the RothC carbon model dynamics. It assumes as a baseline the value of the SOC equilibrium under constant environmental conditions. A sensitivity analysis is performed to evaluate the response of the model to changes in temperature, Net Primary Production (NPP), and land use soil class (forest, grassland, arable). A non-standard monthly time-stepping procedure has been proposed to approximate the SOC change index in the Alta Murgia National Park, a protected area in the Italian Apulia region, selected as a test site. The SOC change index exhibits negative trends for all the land use considered without fertilizers. The negative trend in the arable class can be inverted by a suitable organic fertilization program here proposed.
Anno
2022
Autori IAC
Tipo pubblicazione
Altri Autori
Diele, Fasma; Luiso, Ilenia; Marangi, Carmela; Martiradonna, Angela; Wozniak, Edyta
Editore
Kluwer Academic Publishers :
Rivista
Computational geosciences (Amst.)