Plant diversity and productivity experiments in European grasslands
Plant diversity and productivity experiments in European grasslands
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DOI：
10.1126/science.286.5442.1123
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发表时间：
1999-11-05
期刊：
影响因子：
56.9
通讯作者：
Lawton, JH
中科院分区：
文献类型：
--
作者：
Hector, A;Schmid, B;Lawton, JH
在8个欧洲现场，植物多样性损失对初级生产力的影响进行了模拟合成草地群落与不同数量的植物物种。结果在每个位置的细节不同，但有一个整体的平均地上生物量与物种损失的对数线性减少。对于一定数量的物种，功能群较少的群落生产力较低。这些多样性的影响发生沿着与物种组成和地理位置的差异。生态位的互补性和积极的物种相互作用似乎发挥了作用，在产生多样性生产力的关系，除了从物种库的网站。
At eight European field sites, the impact of Loss of plant diversity on primary productivity was simulated by synthesizing grassland communities with different numbers of plant species. Results differed in detail at each Location, but there was an overall Log-Linear reduction of average aboveground biomass with Loss of species. For a given number of species, communities with fewer functional groups were Less productive. These diversity effects occurred along with differences associated with species composition and geographic Location. Niche complementarity and positive species interactions appear to play a role in generating diversity-productivity relationships within sites in addition to sampling from the species pool.