Relationships between anthropogenic pressures and ecosystem functions in UK blanket bogs: Linking process understanding to ecosystem service valuation
Relationships between anthropogenic pressures and ecosystem functions in UK blanket bogs: Linking process understanding to ecosystem service valuation
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DOI：
10.1016/j.ecoser.2014.06.013
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发表时间：
2014-09-01
影响因子：
7.6
通讯作者：
Parnell, Mark
中科院分区：
文献类型：
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作者：
Evans, Chris D.;Bonn, Aletta;Parnell, Mark
生态系统服务的量化和评估在很大程度上取决于支撑科学的质量。虽然可以理解关键的生态过程，但将这种理解转化为适用于生态系统服务的量化关系仍然具有挑战性。以毛毯沼泽为例，我们得出了将人为压力(排水、燃烧、硫磺和氮沉积)与支撑关键气候、水质和洪水调节服务的生态系统功能联系起来的定量压力-响应函数。分析强调：i)多种人为压力对不同生态系统功能的复杂、有时相互冲突或相互作用的影响；ii)“生物多样性”(主要是关键植物功能类型的存在/不存在)作为决定人为压力如何转化为某些生态系统服务流量变化的中间因素的作用；iii)与人为压力和生态系统服务受益者的空间规模和结构有关的挑战；以及iv)与人为压力和生态系统反应之间的滞后有关的不确定性。所述的概念性方法可为更定量、多参数的生态系统服务评估方法以及基于证据的生态系统服务政策和土地管理的优化提供基础。(C)2014年提交人。爱思唯尔出版公司(Elsevier B.V.)
Quantification and valuation of ecosystem services are critically dependent on the quality of underpinning science. While key ecological processes may be understood, translating this understanding into quantitative relationships suitable for use in an ecosystem services context remains challenging. Using blanket bogs as a case study, we derived quantitative 'pressure-response functions linking anthropogenic pressures (drainage, burning, sulphur and nitrogen deposition) with ecosystem functions underpinning key climate, water quality and flood regulating services. The analysis highlighted: i) the complex, sometimes conflicting or interactive effects of multiple anthropogenic pressures on different ecosystem functions; ii) the role of 'biodiversity' (primarily presence/absence of key plant functional types) as an intermediate factor determining how anthropogenic pressures translate into changes in flows of some ecosystem services; iii) challenges relating to the spatial scale and configuration of anthropogenic pressures and ecosystem service beneficiaries; and iv) uncertainties associated with the lags between anthropogenic pressures and ecosystem responses. The conceptual approach described may provide a basis for a more quantitative, multi parameter approach to the valuation of ecosystem services and the evidence based optimisation of policy and land management for ecosystem services. (C) 2014 The Authors. Published by Elsevier B.V.