The economic value of grassland species for carbon storage.
The economic value of grassland species for carbon storage.
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草地物种碳储存的经济价值。
DOI：
10.1126/sciadv.1601880
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发表时间：
2017-04
期刊：
影响因子：
13.6
通讯作者：
Cardinale BJ
中科院分区：
文献类型：
--
作者：
Hungate BA;Barbier EB;Ando AW;Marks SP;Reich PB;van Gestel N;Tilman D;Knops JMH;Hooper DU;Butterfield BJ;Cardinale BJ
生物多样性通过增加草原的碳储存来赋予经济价值，这是生物多样性保护的一个经济论据。生态系统的碳储存对气候保护很有价值。生物多样性保护可能有助于增加碳储量，但这种影响的价值一直难以评估。我们利用两个草原生物多样性实验的植物、土壤和生态系统碳储量数据表明，物种丰富度越大，经济价值越高：物种丰富度从1增加到10，其经济价值是物种丰富度从1增加到2的两倍。每增加一个物种的边际值随着物种的积累而减小，反映了物种丰富度与植物生物量之间的非线性关系。我们对生物多样性增强碳储存的经济价值的论证，为评估生物多样性对土地管理决策的价值提供了基础。将碳储存与受生物多样性影响的其他生态系统服务结合起来，很可能进一步加强保护的经济论据。
Biodiversity confers economic value by enhancing carbon storage in grasslands, an economic argument for biodiversity conservation. Carbon storage by ecosystems is valuable for climate protection. Biodiversity conservation may help increase carbon storage, but the value of this influence has been difficult to assess. We use plant, soil, and ecosystem carbon storage data from two grassland biodiversity experiments to show that greater species richness increases economic value: Increasing species richness from 1 to 10 had twice the economic value of increasing species richness from 1 to 2. The marginal value of each additional species declined as species accumulated, reflecting the nonlinear relationship between species richness and plant biomass production. Our demonstration of the economic value of biodiversity for enhancing carbon storage provides a foundation for assessing the value of biodiversity for decisions about land management. Combining carbon storage with other ecosystem services affected by biodiversity may well enhance the economic arguments for conservation even further.