Increased forest ecosystem carbon and nitrogen storage from nitrogen rich bedrock

摘要

生物可利用的氮通常限制自然生态系统中的植物生长。存没有人类时，这种必要的养分被认为主要是通过细菌代谢来自大气。Morford等人发表了对岩石、土壤和树叶中氮浓度及同位素组成的测定结果，并用这些结果来说明，基岩对于美国西部的森林来说是生物可利用的氮的又个、迄今被忽略的来源。%Nitrogen (N) limits the productivity of many ecosystems worldwide, thereby restricting the ability of terrestrial ecosystems to offset the effects of rising atmospheric CO_2 emissions naturally. Understanding input pathways of bioavailable N is therefore paramount for predicting carbon (C) storage on land, particularly in temperate and boreal forests.