Modelling water dynamics with DNDC and DAISY in a soil of the North China Plain: A comparative study

Comparison of the DNDC, LandscapeDNDC and IAP-N-GAS models for simulating nitrous oxide and nitric oxide emissions from the winter wheat–summer maize rotation system

“…The soil temperature of each layer is predicted by solving the energy conservation equation across the soil profile. A cascade or bucket modeling approach is adopted to simulate downward soil water movement depending on the water storage capacity (e.g., field capacity) of each layer (Kröbel et al, 2010). If an irrigation event occurs, the amended water is allocated depending on the irrigation method.…”

The development of the DNDC plant growth sub-model and the application of DNDC in agriculture: A review

“…However, with the assumption of a deep water pool located below the bottom of the modelled soil profile (50 cm) and above the drainage tiles (145 cm) to control the tile discharge flow, this soil depth (0-50 cm) should be deep enough to cover the most important biogeochemical processes while minimizing computing time . (4) DNDC will underestimate soil moisture if observed soil moisture remains above field capacity because DNDC uses a simple cascade (tipping bucket) water flow model that drains the profile to field capacity (Kröbel et al, 2010;Uzoma et al, 2015). Likewise, because DNDC does not include unsaturated flow and underestimates the rainfall loss caused by surface runoff and leaf interception, it may overestimate soil moisture at other times (Kiese et al, 2005;Tonitto et al, 2010).…”

Evapotranspiration Over Heterogeneous Vegetated Surfaces

“…During the past decade, various models have been developed to partition available energy at the soil-plantatmosphere interface and to simulate mass or energy movement in the soil. Examples include those developed by Wilson et al (2003), Lee and Mahrt (2004), Lei et al (2008) and Krobel et al (2010). A common SPAC model usually includes two parts, the below-ground part (soil) and the above-ground part.…”