CSDMS 2020 Webinars

CSDMS Summer Science Series II: Quantifying Land-Use Impacts on SOC, Soil Texture, and Bulk Density for Earth System Modeling

Pei-Ling Wang

University of Victoria, Canada

Soils control the influence of how land use and land cover (LULC) change the global water, energy, and biogeochemical cycles. However, Earth System Models often assume soil properties stay constant over time that leaves uncertainties in assessing LULC impacts. This study quantifies impacts of agriculture, pasture, grazing, vegetation harvest, and secondary vegetation cover on SOC, texture, and bulk density through meta-analyses. We showed how LULCs link to different soils and constructed a model to estimate how LULCs change soil properties and how climate and soil conditions alter the impacts. Results provide better land surface characteristics to improve Earth systems modeling.

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Of interest for:
  • Terrestrial Working Group