Improving National-Scale Carbon Stock Inventories Using Knowledge of Land Use History

C.J.E. Schulp, P.H. Verburg, P. Kuikman, G.J. Nabuurs, J.G.J. Olivier, W. de Vries, A. Veldkamp

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    National-scale inventories of soil organic carbon (SOC) and forest floor carbon (FFC) stocks have a high uncertainty. Inventories are often based on the interpolation of sampled information, often using a number of covariables to help such interpolation. The rationale for the choice of these covariables is not always documented, despite the fact that many local-scale studies have identified the factors explaining spatial variability of SOC and FFC stocks. These studies indicate, among others the importance of long-term land use history. Despite this, information on the effects of land use history has never been used to explain variability of carbon stocks in national-scale inventories. We designed an alternative method to improve national-scale inventories of SOC and FCC for the Dutch sand area that takes stock of the findings of detailed case studies. Determinants for SOC and FFC stocks derived from landscape-scale case studies were used to map national-scale spatial variability and to calculate national totals. The resulting national-scale spatial distribution was compared with the SOC stock map from the current Dutch greenhouse gas inventory. Using land use history to explain SOC variability decreased the error of the SOC stock estimate in 60 % of the area. The error in FFC stocks decreased in half of the forest area after including soil fertility, tree species, and forest age as explanatory factors. Estimates with reduced uncertainty will make land use and land management a more attractive and acceptable mitigation option to reduce emissions of greenhouse gases for the LULUCF sector. © 2012 Springer Science+Business Media New York.
    Original languageEnglish
    Pages (from-to)709-723
    JournalEnvironmental Management
    Volume51
    Issue number3
    DOIs
    Publication statusPublished - 2013

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