Root biomass data: Traits: Competition and Resource Reduction for Five Grass Species Grown in Monoculture and Competition in Soils with Different Nitrogen Availabilities

This experiment was designed to determine the relationships between plant traits, successional status, and resource reduction for five grass species that were grown for three years in monoculture in replicated field plots on soils prepared to have different availabilities of nitrogen. It also determines the results of competition experiments among various combinations of these species as well as the differing feedback effects of each species on soil nitrogen mineralization rates. All of this work has motivated the desire to more fully understand the mechanisms of interactions among plants and their resources, in the belief that this might eventually allow predictions of the dynamics, diversity, and composition of plant communities.

本实验旨在明确5种草本植物的功能性状、演替状态与资源缩减之间的关联：这些植物以单作模式，在设置了不同氮素可获得性梯度的重复田间样地中培育三年。本实验同时测定了这些物种不同组合下的种间竞争实验结果，以及各物种对土壤氮矿化速率的差异化反馈效应。上述所有研究均旨在更全面地解析植物与自身资源间的相互作用机制，以期最终能够实现对植物群落动态、多样性及群落组成的预测。