LandS: Vegetation modeling based on Ellenberg's ecological indicator values

MethodsX, vol. 11, pp. 102486

Abstract

We present LandS, a new version of the Gras Model. The Gras Model was designed to simulate grassland development at local scales based on Ecological Indicator Values (EIVs) for different grassland management practices. In LandS, we complemented the existing set of EIVs with a second set representing several environmental factors: light, moisture, temperature, soil pH and nitrogen, also known as Ellenberg's EIVs. These new EIVs make the model more versatile and applicable to a wide range of sites across Central Europe. For example, it can be used on sites with dry or moist, acidic or calcareous soils in grassland or forest environments. We have also improved the implementation of the model by introducing version control and moving species and site-specific variables to data input files, so that species sets can be easily swapped for application in new study sites. We demonstrate the use and behavior of the model in two simulation experiments exploring interactions mediated by Ellenberg's EIVs, using input files to apply the model to different landscapes. We also provide detailed guidance on species selection and calibration, and discuss model limitations.•LandS is an improved version of the GraS Model for simulating vegetation development at the local scale.•It includes Ellenberg-like indicator values for environmental variables for inverse prediction of species occurrence and composition.•The model is now flexible enough to be used for study sites throughout Central Europe, using data input files for species initialization.

Authors 7

1. Quintana Rumohr corresponding Aachen gaiac Research Institute for Ecosystem Analysis and Assessment

   RWTH Aachen University

   Affiliation as printed

   Gaiac Research Institute for Ecosystem Analysis and Assessment at RWTH Aachen University, Kackertstraße 10, Aachen 52072, Germany

2. Volker Grimm

   Helmholtz Centre for Environmental Research

   Affiliation as printed

   Helmholtz Centre for Environmental Research - UFZ, Department of Ecological Modelling, Permoserstr. 15, Leipzig 04318, Germany

   Helmholtz Centre for Environmental Research – UFZ, Department of Ecological Modelling, Permoserstr. 15, Leipzig 04318, Germany

3. Gottfried Lennartz Aachen gaiac Research Institute for Ecosystem Analysis and Assessment

   RWTH Aachen University

   Affiliation as printed

   Gaiac Research Institute for Ecosystem Analysis and Assessment at RWTH Aachen University, Kackertstraße 10, Aachen 52072, Germany

4. Andreas Schäffer Aachen Institute for Environmental Research

   RWTH Aachen University

   Affiliation as printed

   Institute for Environmental Research, RWTH Aachen University, Kackertstraße 10, Aachen 52072, Germany

5. Andreas Toschki Aachen gaiac Research Institute for Ecosystem Analysis and Assessment

   RWTH Aachen University

   Affiliation as printed

   Gaiac Research Institute for Ecosystem Analysis and Assessment at RWTH Aachen University, Kackertstraße 10, Aachen 52072, Germany

6. Martina Roß‐Nickoll Aachen Institute for Environmental Research

   RWTH Aachen University

   Affiliation as printed

   Institute for Environmental Research, RWTH Aachen University, Kackertstraße 10, Aachen 52072, Germany

7. Silvana Hudjetz Aachen gaiac Research Institute for Ecosystem Analysis and Assessment

   RWTH Aachen University

   Affiliation as printed

   Gaiac Research Institute for Ecosystem Analysis and Assessment at RWTH Aachen University, Kackertstraße 10, Aachen 52072, Germany