Dataset for: The effects of N, P and crude oil on the decomposition of Spartina alterniflora belowground biomass

We conducted a laboratory experiment to examine how the decomposition of belowground particulates is enhanced, or not, by different mixtures of oil, nitrogen, or phosphorus acting individually or synergistically. The experiment was conducted in 3.8 L sampling chambers producing varying quantities of gas under anaerobic conditions.本研究开展了一项实验室实验，旨在探究不同组合的油类、氮或磷（可单独作用或产生协同效应）能否以及如何强化地下颗粒物质的分解过程。本次实验于容积3.8升的采样箱中进行，实验环境为厌氧条件，期间会产生不同产量的气体。