Location: Cropping Systems and Water Quality Research
Title: Soil health assessment at the national scaleAuthor
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Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only Publication Acceptance Date: 10/25/2023 Publication Date: 10/31/2023 Citation: Veum, K.S. 2023. Soil health assessment at the national scale [abstract]. ASA-CSSA-SSSA International Annual Meeting, October 29-November 1, 2023. St. Louis, Missouri. No. 125-2. Available: https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/154256 Interpretive Summary: Technical Abstract: Soil health assessment and interpretation is challenged by several factors that vary across space and time. Climate, landscape, and inherent soil characteristics all play an important role at the continental scale. These site-specific factors define how a soil responds to management and land use practices. The Soil Health Assessment Protocol and Evaluation (SHAPE) was developed as a flexible tool that accounts for the interaction of inherent climate and edaphic factors when interpreting changes in soil health indicators. The Bayesian model-based SHAPE tool was initially developed for soil organic carbon and has been expanded to include permanganate oxidizable organic carbon, autoclaved citrate extractable protein, two aggregate stability methods, and four-day soil respiration. These new SHAPE scoring curves demonstrate sensitivity to management practices across multiple soil types and provide a regionally relevant interpretation of these key soil health indicators. Version 2.0 improves upon the original SHAPE curves with spatially-explicit models and efforts are underway to substantially expand the underlying dataset to improve representation of soils and systems across the U.S. |
