Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13717-022-00382-0/MediaObjects/13717_2022_382_Fig2_HTML.png)
Effects of nitrogen addition on δ15N value and N concentration of different components of Larix gmelinii. A The δ15N value of different components of Larix gmelinii. B The N concentration of different components of Larix gmelinii. Error bars represent 1 SE of the mean. CK, LN, MN, HN represent the control, low N treatment, medium N treatment, and high N treatment, respectively