Effects and pathways of long-term nitrogen addition on plant diversity and primary productivity in a typical steppe
WANG Yu-Bing,SUN Yi-Han,DING Wei,ZHANG En-Tao,LI Wen-Huai,CHI Yong-Gang,ZHENG Shu-Xia
Chin J Plant Ecol . 2020, (1): 22 -32 .  DOI: 10.17521/cjpe.2019.0260

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