Incorporating plant functional diversity effects in ecosystem service assessments
Incorporating plant functional diversity effects in ecosystem service assessments
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DOI：
10.1073/pnas.0704716104
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发表时间：
2007-12-26
影响因子：
11.1
通讯作者：
Robson, Matthew
中科院分区：
文献类型：
--
作者：
Diaz, Sandra;Lavorel, Sandra;Robson, Matthew
全球环境变化影响到可持续提供广泛的生态系统服务。虽然生态系统服务的提供受到非生物驱动因素和直接土地利用影响的强烈影响，但它也受到生物群落功能多样性(特定生态系统中功能特征的价值、范围和相对丰富度)的影响。本文的重点是整合不同的可能机制，功能多样性通过这些机制影响与生态系统服务直接相关的生态系统属性。我们提出了一种系统的方法，以了解土地覆盖变化如何通过修改功能多样性来影响这些生态系统属性。关于生态系统属性与当地植物特征值的平均值、范围和分布之间的联系的模型很多，但它们在文献中分散存在，并有不同程度的经验支持和不同的功能多样性成分分析。在这里，我们在一个单一的概念和方法框架中阐明这些不同的组件，以允许对它们进行组合测试。我们用文献中的例子来说明我们的方法，并将所提出的框架应用于法国阿尔卑斯山中部的草原系统，在该系统中，功能多样性通过响应土地利用的变化，改变了对当地利益攸关方重要的生态系统服务的提供。我们声称，我们的框架有助于在土地变化科学和基础生态学的交界处开辟一个新的研究领域。
Global environmental change affects the sustained provision of a wide set of ecosystem services. Although the delivery of ecosystem services is strongly affected by abiotic drivers and direct land use effects, it is also modulated by the functional diversity of biological communities (the value, range, and relative abundance of functional traits in a given ecosystem). The focus of this article is on integrating the different possible mechanisms by which functional diversity affects ecosystem properties that are directly relevant to ecosystem services. We propose a systematic way for progressing in understanding how land cover change affects these ecosystem properties through functional diversity modifications. Models on links between ecosystem properties and the local mean, range, and distribution of plant trait values are numerous, but they have been scattered in the literature, with varying degrees of empirical support and varying functional diversity components analyzed. Here we articulate these different components in a single conceptual and methodological framework that allows testing them in combination. We illustrate our approach with examples from the literature and apply the proposed framework to a grassland system in the central French Alps in which functional diversity, by responding to land use change, alters the provision of ecosystem services important to local stakeholders. We claim that our framework contributes to opening a new area of research at the interface of land change science and fundamental ecology.