Mosses are dominant in many ecosystems where nutrients from deposition are one of the main nutrient sources. However, it is difficult to evaluate mosses’ role in nutrient cycling without knowledge of how mosses use deposited nutrient inputs. To fill this gap, the present study aims to investigate: (i) how nitrogen (N) and phosphorus (P) concentrations of new-grown segments change along a gradient of N or P amount in a pulse treatment? (ii) how do a pulse of major nutrient (N or P) affect N or P translocation rate along a moss shoot? and (iii) to what extent do N or P translocation rates link to nutrient status of the new-grown segments of mosses?

中文翻译：

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这些营养素的脉动影响森林地表苔藓的氮和磷易位

苔藓在许多生态系统中占主导地位，在这些生态系统中，沉积物养分是主要养分来源之一。但是，如果不了解青苔如何利用沉积的养分输入，就很难评估青苔在养分循环中的作用。为填补这一空白，本研究旨在研究：（i）在脉冲处理中，新生长段的氮（N）和磷（P）浓度如何沿N或P量的梯度变化？（ii）主要营养素（氮或磷）脉冲如何影响苔藓芽上氮或磷的转运速率？（iii）氮或磷的易位率在多大程度上与苔藓新生长部分的营养状况有关？