A global gridded data set on tillage (V. 1.1)

Cite as:

Porwollik, Vera; Rolinski, Susanne; Müller, Christoph (2019): A global gridded data set on tillage (V. 1.1). GFZ Data Services. https://doi.org/10.5880/PIK.2019.009

Status

I N R E V I E W : Porwollik, Vera; Rolinski, Susanne; Müller, Christoph (2019): A global gridded data set on tillage (V. 1.1). GFZ Data Services. https://doi.org/10.5880/PIK.2019.009

Abstract

Tillage is a central element in agricultural soil management and has direct and indirect effects on processes in the biosphere. Effects of agricultural soil management can be assessed by soil, crop, and ecosystem models but global assessments are hampered by lack of information on type and spatial distribution. This dataset is the result of a study on global classification of tillage practices and the spatially explicit mapping of crop-specific tillage systems for around the year 2005.

This global gridded tillage system data set is dedicated to modeling communities interested in the quantitative assessment of biophysical and biogeochemical impacts of land use and soil management on cropland. The data set is complemented by the publication of the R- code and can be used for reproducing and build upon for scenarios including the expansion of sustainable soil management practices as Conservation Agriculture (Porwollik et al. 2018, http://doi.org/10.5880/PIK.2018.013). Both, the data set and the R-code are described in detail in Porwollik et al. (2018, ESSD).

We present the mapping result of six tillage systems for 42 crop types and potential suitable Conservation Agriculture area as the following variables:

We present the mapping result of six tillage systems for 42 crop types and potentially suitable Conservation Agriculture area as variables:
1 = conventional annual tillage
2 = traditional annual tillage
3 = reduced tillage
4 = Conservation Agriculture
5 = rotational tillage
6 = traditional rotational tillage
7 = Scenario Conservation Agriculture area

Reference system: WGS84
Geographic extent: Longitude (min, max) (-180, 180), Latitude (min, max) (-56, 84)
Resolution: 5 arc-minutes
Time period covered: around the year 2005
Type: NetCDF

Dataset sources (with indication of reference):

1. Grid cell allocation key to country: IFPRI/IIASA (2017, cell5m_allockey_xy.dbf.zip)
2. Crop-specific physical cropland: IFPRI/IIASA (2017, spam2005v3r1_global_phys_area.geotiff.zip)
3. SoilGrids depth to bedrock: Hengl et al. (2014)
4. Aridity index: FAO (2015)
5. Conservation Agriculture area: FAO (2016)
6. Income level: World Bank (2017)
7. Field size: Fritz et al. (2015)
8. GLADIS - Water erosion: Nachtergaele et al. (2011)

CHANGELOG for Version 1.1
improved calculation and mapping, for details see README.PDF

Additional Information

This tillage dataset is made available under the Open Database License: http://opendatacommons.org/licenses/odbl/1.0/. Any rights in individual contents of the database are licensed under the Database Contents License: http://opendatacommons.org/licenses/dbcl/1.0/.

Authors

Porwollik, Vera;Potsdam Institute for Climate Impact Research, Potsdam, Germany
Rolinski, Susanne;Potsdam Institute for Climate Impact Research, Potsdam, Germany
Müller, Christoph;Potsdam Institute for Climate Impact Research, Potsdam, Germany

Contact

Porwollik, Vera (PhD candidate); Potsdam Institute for Climate Impact Research, Potsdam, Germany; ➦

Contributors

Heinke, Jens

Funders

German Federal Ministry of Education and Research (BMBF): MACMIT project (01LN1317A)

Keywords

tillage, plowing, soil management, gridded data, Conservation Agriculture, ploughing

GCMD Science Keywords

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    - subject: plowing
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    - subject: ploughing
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