Loss of plant species after chronic low-level nitrogen deposition to prairie grasslands.
作者： Christopher M. Clark , David Tilman
DOI: 10.1038/NATURE06503
关键词: Environmental science 、 Species diversity 、 Pollution 、 Nitrogen 、 Ecology 、 Deposition (aerosol physics) 、 Nitrogen deposition 、 Combustion 、 Agronomy 、 Grassland 、 Fossil fuel
摘要: … We measured plant species number and biomass in each plot every year … plant species numbers 24 , we calculated relative species numbers by dividing the number of plant species …
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