“…A variety of process-oriented biogeochemical models have been developed, such as DNDC (Li, 1992a(Li, ,b, 2007, DAYCENT (Del Grosso et al, 2005), LandscapeDNDC (Haas et al, 2012;Kraus et al, 2014) and IAP-N-GAS (Zhou et al, 2010). Different models in the DNDC family have been extensively used to simulate the release of GHGs and nitrogenous pollutants from croplands (e.g., Beheydt et al, 2007;Cui et al, 2014;Li et al, 2006), grasslands (e.g., Frolking et al, 1998;Saggar et al, 2007) and other terrestrial ecosystems (e.g., Lamers et al, 2007;Miehle et al, 2006;Stange et al, 2000).…”