评估德国北部农业生态系统状况与生态系统服务土壤侵蚀调节之间的关系。

Assessment of the relationships between agroecosystem condition and the ecosystem service soil erosion regulation in Northern Germany.

机构信息

Institute of Physical Geography & Landscape Ecology, Leibniz University of Hannover, Hannover, Germany.

Institute of Geography, Christian Albrechts University, Kiel, Germany.

出版信息

PLoS One. 2020 Dec 7;15(12):e0234288. doi: 10.1371/journal.pone.0234288. eCollection 2020.

Abstract

Ecosystems provide multiple services that are necessary to maintain human life. Agroecosystems are very productive suppliers of biomass-related provisioning ecosystem services, e.g. food, fibre, and energy. At the same time, they are highly dependent on good ecosystem condition and regulating ecosystem services such as soil fertility, water supply or soil erosion regulation. Assessments of this interplay of ecosystem condition and services are needed to understand the relationships in highly managed systems. Therefore, the aim of this study is twofold: First, to test the concept and indicators proposed by the European Union Working Group on Mapping and Assessment of Ecosystems and their Services (MAES) for assessing agroecosystem condition at a regional level. Second, to identify the relationships between ecosystem condition and the delivery of ecosystem services. For this purpose, we applied an operational framework for integrated mapping and assessment of ecosystems and their services. We used the proposed indicators to assess the condition of agroecosystems in Northern Germany and regulating ecosystem service control of erosion rates. We used existing data from official databases to calculate the different indicators and created maps of environmental pressures, ecosystem condition and ecosystem service indicators for the Federal State of Lower Saxony. Furthermore, we identified areas within the state where pressures are high, conditions are unfavourable, and more sustainable management practices are needed. Despite the limitations of the indicators and data availability, our results show positive, negative, and no significant correlations between the different pressures and condition indicators, and the control of erosion rates. The idea behind the MAES framework is to indicate the general condition of an ecosystem. However, we observed that not all proposed indicators can explain to what extent ecosystems can provide specific ecosystem services. Further research on other ecosystem services provided by agroecosystems would help to identify synergies and trade-offs. Moreover, the definition of a reference condition, although complicated for anthropogenically highly modified agroecosystems, would provide a benchmark to compare information on the condition of the ecosystems, leading to better land use policy and management decisions.

摘要

生态系统提供了维持人类生命所必需的多种服务。农业生态系统是生物质相关供给服务的非常有生产力的供应商,例如食物、纤维和能源。与此同时,它们高度依赖良好的生态系统状况和调节服务,例如土壤肥力、供水或土壤侵蚀调节。需要评估生态系统状况和服务之间的这种相互作用,以了解高度管理系统中的关系。因此,本研究的目的有两个:首先,测试欧盟生态系统和服务制图和评估工作组(MAES)提出的概念和指标,以评估区域水平的农业生态系统状况。其次,确定生态系统状况与生态系统服务提供之间的关系。为此,我们应用了一个用于综合制图和评估生态系统及其服务的操作框架。我们使用建议的指标来评估德国北部农业生态系统的状况和调节生态系统服务对侵蚀速率的控制。我们利用官方数据库中的现有数据来计算不同的指标,并为下萨克森州创建了环境压力、生态系统状况和生态系统服务指标的地图。此外,我们确定了该州内压力高、条件不利且需要更可持续管理实践的区域。尽管指标和数据可用性存在限制,但我们的结果显示,不同压力和条件指标与侵蚀速率控制之间存在正相关、负相关和无显著相关。MAES 框架的思想是指示生态系统的一般状况。然而,我们观察到并非所有建议的指标都能解释生态系统在多大程度上能够提供特定的生态系统服务。进一步研究农业生态系统提供的其他生态系统服务将有助于确定协同作用和权衡。此外,尽管对于人为高度改造的农业生态系统来说很复杂,但参考条件的定义将为比较有关生态系统状况的信息提供基准,从而制定更好的土地利用政策和管理决策。

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