Dryland Ecosystems of the Sudano-Sahel: A Vegetation Model Perspective

W. Verbruggen
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Abstract

Dryland ecosystems are globally widespread and have a large impact on the global land carbon sink. Yet a detailed optimisation of dynamic vegetation models for these ecosystems is lacking. This works contributes to resolving this problem. Based on data from our own field work, we parameterised two dynamic vegetation models to dryland conditions, specifically the Sudano-Sahel region. The optimised parameterisation enables the models to realistically simulate carbon and water fluxes measured at several fluxtower sites across the region, as well as several satellite data products. Using these models, we then studied how climatic factors and soil texture may influence the functioning of dryland ecosystems. By using and tuning dynamic vegetation models for simulating dryland vegetation, this work provides a unique insight into dryland ecosystem functioning.
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苏丹-萨赫勒旱地生态系统:植被模型视角
旱地生态系统在全球广泛存在,对全球陆地碳汇有很大影响。然而,缺乏对这些生态系统动态植被模型的详细优化。这项工作有助于解决这一问题。基于我们自己实地工作的数据,我们将两个动态植被模型参数化到旱地条件,特别是苏丹-萨赫勒地区。优化的参数化使模型能够真实地模拟在该地区几个通量塔站点以及几个卫星数据产品测量的碳和水通量。利用这些模型,我们研究了气候因素和土壤质地如何影响旱地生态系统的功能。通过使用和调整动态植被模型来模拟旱地植被,本工作提供了对旱地生态系统功能的独特见解。
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CiteScore
0.60
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0.00%
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0
审稿时长
20 weeks
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