Introduction of a natural resource balance indicator to assess soil organic carbon management: Agricultural Biomass Productivity Benefit

Lieselot Boone, Veerle Van linden, Isabel Roldán-Ruiz, Carlos A. Sierra, Bart Vandecasteele, Steven Sleutel, Steven De Meester, Hilde Muylle, Jo Dewulf

    Research output: Contribution to journalA1: Web of Science-articlepeer-review

    Abstract

    The rising demand for feed and food has put an increasing pressure on agriculture, with agricultural intensification as a direct response. Notwithstanding the higher crop productivity, intensive agriculture management entails many adverse environmental impacts. Worldwide, soil organic carbon (SOC) decline is hereby considered as a main danger which affects soil fertility and productivity. The life cycle perspective helps to get a holistic overview when evaluating the environmental sustainability of agricultural systems, though the impact of farm management on soil quality aspects is often not integrated. In this paper, we introduce an indicator called Agricultural Biomass Productivity Benefit of SOC management (ABB_SOC), which, relying on natural resource consumption, enables to estimate the net effect of the efforts made to attain a better soil quality. Hereby the focus is put on SOC. First, we introduce a framework to describe the SOC trend due to farm management decisions. The extent to which remediation measures are required are used as a measure for the induced SOC losses. Next, ABB_SOC values are calculated as the balance between the natural resource consumption of the inputs (including remediation efforts) and the desired output of arable crop production systems. The models RothC and EU-Rotate_N are used to simulate the SOC evolution due to farm management and the response of the biomass productivity, respectively. The developed indicator is applied on several rotation systems in Flanders, comparing different remediation strategies. The indicator could be used as a base for a method to account for soil quality in life cycle analysis.
    Original languageEnglish
    JournalJournal of Environmental Management
    Volume224
    Pages (from-to)202-214
    Number of pages13
    ISSN0301-4797
    DOIs
    Publication statusPublished - 15-Oct-2018

    Keywords

    • Agriculture
    • Life cycle assessment
    • Productivity
    • Remediation
    • Soil organic carbon
    • Sustainability

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