Ecosystem services provided by urban spontaneous vegetation
Ecosystem services provided by urban spontaneous vegetation
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DOI：
10.1007/s11252-012-0225-8
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发表时间：
2012-09-01
期刊：
影响因子：
2.9
通讯作者：
Lundholm, Jeremy T.
中科院分区：
文献类型：
--
作者：
Robinson, Sarah L.;Lundholm, Jeremy T.
自然植被在城市及其周围的大片地区定居。这些无人管理的区域被认为经济价值较低或表明存在疏忽，但最近的研究表明，这些区域可以为生态系统服务做出有价值的贡献。这项研究评估了新斯科舍省哈利法克斯三种生境的生态系统服务指标：城市自然植被(USV)、管理草坪和半自然城市森林。与其他生境相比，USV具有更高的生境提供指标值(植物物种多样性、无脊椎动物丰度和分类多样性)。USV的气候调节服务指标(反照率和叶面积指数)与草坪生境相似。土壤有机碳含量是碳储量的一个指标，USV的土壤有机碳含量最低，但仅略低于草坪。作为生产服务指标的现存量在USV是最低的，但草坪产量可能被高估了。虽然USV站点通常是城市景观的短暂组成部分，但由于它们提供生态系统服务，因此值得进一步考虑，在某些情况下，其程度高于传统意义上的城市栖息地。
Spontaneous vegetation colonizes large areas in and around cities. These unmanaged areas are considered to have low economic value or indicate dereliction, but recent research suggests that these can contribute valuable ecosystem services. This study evaluates indicators of ecosystem services in three habitats: urban spontaneous vegetation (USV), managed lawns, and semi-natural urban forest, in Halifax, Nova Scotia. USV had higher indicator values for habitat provisioning (plant species diversity, invertebrate abundance and taxonomic diversity) than the other habitats. Indicators of climatic regulatory services (albedo and leaf area index) in USV were similar to those in lawn habitats. Organic carbon content of the soils, an indicator of carbon storage, was lowest in USV but only marginally lower than in lawns. Standing biomass, an indicator of production services, was lowest in USV but lawn production may have been overestimated. While USV sites are usually transitory components of the urban landscape, they deserve further consideration due to their provision of ecosystem services, in some cases to a greater extent than conventionally valued urban habitats.