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Quantifying heat vs. drought-induced yield decline of German cropping systems and the mitigating potential of irrigation

Martin, Lioba 1; Smerald, Andrew 1
1 Institut für Meteorologie und Klimaforschung Atmosphärische Umweltforschung (IMKIFU), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

This dataset contains simulated crop yields for wheat and maize under heat stress, drought stress, and unstressed and irrigated conditions across Germany (2012–2023), generated using the process-based ecosystem model LandscapeDNDC.

The data were produced through a two-step calibration procedure optimizing key growth parameters for both crops, and include district-level yield estimates. The dataset enables assessment of the relative contributions of heat and drought stress to crop yield variability and supports climate impact studies for Central European agriculture. All data are provided in standardized CSV and NetCDF formats with full metadata documentation. The dataset is freely available and intended for reuse in agricultural modeling, climate risk assessment, and related research applications.


Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung Atmosphärische Umweltforschung (IMKIFU)
Publikationstyp Forschungsdaten
Publikationsdatum 22.06.2026
Erstellungsdatum 01.10.2025 - 05.05.2026
Identifikator DOI: 10.35097/gcxbhp7e5xn4eaey
KITopen-ID: 1000194491
Lizenz Creative Commons Namensnennung – Weitergabe unter gleichen Bedingungen 4.0 International
Schlagwörter Germany, heat stress, drought stress, irrigation, extreme events
Liesmich

GS suffixes:
DEdefault stands for standard stress routine - all stresses enabled

DEnodrought means drought stress is not restricting plant growth

DEnoheat.. means heat stress is not restricting plant growth

DEnostress.. means that neither heat nor droughtstress are restricting plant growth

DEirri005 means that theta for irrigation was set to 0.05 -> ~ half mitigation scenario

DEirri015 means that theta for irrigation was set to 0.15 -> full drought mitigation scenario

Xheatmultisite stands for calibration parameters from the multisite calibration

suffix parameter setup
_best 5th best parameter set for wheat, "6th" best for maize (actually 5th best of the "old" version)
_c1 1st best parameter set of both wheat and maize
_c2 2nd best parameter set of both wheat and maize
_c3 3rd best parameter set of both wheat and maize
_c4 4th best parameter set of both wheat and maize
_c5 5th best parameter set of both wheat and maize
_wlogging <par name="SENESCENCE_WATER" value = "0.08" />
site_list_Germany_Landkreis_Nstie_fixed_50_nrep0.csv links the data to districts.

Art der Forschungsdaten Dataset
Globale Ziele für nachhaltige Entwicklung Ziel 2 – Kein HungerZiel 13 – Maßnahmen zum Klimaschutz
KIT – Die Universität in der Helmholtz-Gemeinschaft
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