How did the species characteristics about plant nutrient use influence the ecological succession after disturbance in boreal forests?

北方森林中植物的生长期很短。因此，对于植物来说，如何以及何时获得氮是很重要的，这是它们生长的限制因素。本研究从氮素来源和季节性两个方面对植物氮素利用进行了研究。我把重点放在森林火灾或河流泛滥等森林干扰后出现的早期演替物种。结果表明，种间差异较大，说明氮素竞争受到源分离或时间分化的抑制。

The growth period for plants is short in boreal forests. Therefore, it is important for plants how and when they acquire nitrogen, which is the limiting factor for their growth. In this study, plant nitrogen use was investigated from the viewpoint of nitrogen source and seasonality. I focused on the early successional species that appeared after forest disturbance such as forest fire or river flooding. The results showed major species differences, which suggested the competition for nitrogen was restrained by separation of source or temporal differentiation.