Estimating soil water in high-rainfall zones under pasture

T. Thayalakumaran, M. McCaskill and E.M. Morse-McNabb

Agricultural Systems, 2018, vol. 165, issue C, 252-263

Abstract: Soil water is important for agricultural production, and is a key parameter in hydrologic models and weather prediction models. In this paper we explore the ability of two commonly used paddock scale models for pasture: HowLeaky and DairyMod, to estimate soil water in the topsoil (0–100 mm) and root-zone (0–1000 mm) at daily intervals. We also examined the influence of soil hydraulic properties on estimated amounts of soil water by using soil properties measured at the site, compared with properties from the national database. Soil water estimates were compared with field measurements from four grazing systems in the high-rainfall zone of western Victoria, Australia.

Keywords: Field capacity; Wilting point; Soil water balance modelling; DairyMod; Howleaky; Soil water redistribution (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:eee:agisys:v:165:y:2018:i:c:p:252-263

DOI: 10.1016/j.agsy.2018.06.019

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