Contrasting effects of N addition on the N and P status of understory vegetation in plantations of sapling and mature <em>Larix</em> <em>principis-rupprechtii</em>

Tao Yan, Tiantian Qu, Huanhuan Song, Philippe Ciais, Shilong Piao, Zhenzhong Sun and Hui Zeng

J Plant Ecol . 2018, (6): 843 -852 . DOI: 10.1093/jpe/rty023