Soil erosion practical with Python

The aim of this practical is to have an idea of how coarse-resolution global models of soil loss and land surface processes can be used to study the soil organic carbon pool. We will make use of the CE-DYNAM model (Naipal et al., 2018, Biogeosciences), and we will only look at the carbon erosion rates triggered by soil removal on cropland. The Practical is accompanied by a general introduction into soil erosion and carbon modelling with land surface models.

The input data to execute the model is provided after contacting the author.

Have a look at the Jupyter notebook Erosion_and_carbon_training.ipynb to see how the code and results looks like, and the steps that need to be followed to run the model.

Installation of Python with Anaconda and necessary packages

1. Install Anaconda with python 2.7 (ideally): http://docs.continuum.io/anaconda/install/
2. Install fortran compilers to run f2py in Anaconda For Windows: I. Download and install MinGW-w64 through the anaconda prompt: conda install mingw II. Insert the path to the mingw bin folder to your system path. The path that you want to add to your system variable should look something like C:\mingw
   mingw64\bin. Go to control panel > advanced system settings > environmental variables > system variables > add new > variable is gfortran.exe and path is C:
   Users\adminuser\Anaconda2\MinGW\bin III. In Anaconda create the environment in which you want f2py working, and activate it: conda create -n py36_test python=3.6 activate py36_test VI. Configure your Anaconda environment to use MinGW when it compiles by executing the command below from the Anaconda prompt: (echo [build] & echo compiler = mingw32) > CONDA_PREFIX%\Lib\distutils\distutils.cfg VIII. Install several necessary packages to your environment: conda install numpy libpython m2w64-toolchain For Linux : Just make sure numpy is installed, which should be the case when you have installed anaconda. And install gfortran: apt install gfortran For Mac: Just make sure numpy is installed, which should be the case when you have installed anaconda. And install gcc: apt install gcc
3. Launch spyder from py27_test environment in which you want to work. Run the command: spyder activate py27_test You can also open the anaconda-navigator and change the environment from “base” to “py27_test”. Then launch spyder
4. Launch spyder, then go to tools>preferences>Ipython console>graphics>change “backend” to Automatic
5. Install Basemap: conda install -c conda-forge basemap