A dynamic root system growth model based on L-Systems

By Daniel Leitner, S. Klepsch, Gernot Bodner, Andrea Schnepf. Plant and Soil, 2010

173 citations recorded by the source corpus.

Understanding the impact of roots and rhizosphere traits on plant resource efficiency is important, in particular in the light of upcoming shortages of mineral fertilizers and climate change with increasing frequency of droughts. We developed a modular approach to root growth and architecture modelling with a special focus on soil root interactions. The dynamic three-dimensional model is based on L-Systems, rewriting systems well-known in plant architecture modelling. We implemented the model in Matlab in a way that simplifies introducing new features as required. Different kinds of tropisms were implemented as stochastic processes that determine the position of the different roots in space. A simulation study was presented for phosphate uptake by a maize root system in a pot experiment. Different sink terms were derived from the root architecture, and the effects of gravitropism and chemotropism were demonstrated. This root system model is an open and flexible tool which can easily be coupled to different kinds of soil models.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/fe2ba21ddf69febff61cf852c93cfba1af7d6b43

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Citations in the corpus

• Tamm Review: Deep fine roots in forest ecosystems: Why dig deeper? (2020, background): “…account root-soil interaction functions (Diggle, 1988; Jourdan and Rey, 1997a,b; Lynch et al., 1997; Pagès et al., 2004; Dunbabin et al., 2013; Pagès et al., 2014; Barczi et al., 2018), with water and nutrient uptake (Wu et al., 2007; Javaux et al., 2008; Leitner et al., 2010; Postma et al., 2017).”
• Implementation and Application of a Root Growth Module in HYDRUS (2018, methodology): “Existing models are either complex, three-dimensional root architecture models (Clausnitzer and Hopmans, 1994; Somma et al., 1998; Leitner et al., 2010; Bingham and Wu, 2011; Couvreur et al., 2012) or simpler root growth models that are implemented within more complex models such as EPIC (Williams e”
• Acquisition of phosphorus and other poorly mobile nutrients by roots. Where do plant nutrition models fail? (2011, background): “…in plant nutrition models cited above is that rhizosphere processes affect nutrient availability, and hence nutrient uptake, of the individual plant responsible for such rhizosphere processes (Geelhoed et al. 1999; Kirk 2002; Kirk and Saleque 1995; Leitner et al. 2010b; Mollier et al. 2008).”
• Modeling plant–water interactions: an ecohydrological overview from the cell to the global scale (2016, methodology): “(b) Plant-scale properties of root distribution are controlled by using explicit root architecture obtained with the RootBox software.(153) Roots of different order (color-coded) as well as overlapped areas where competition for”