Effects of nitrogen and phosphorus addition at early-spring and middle-summer on ecosystem carbon exchanges of a degraded community in Nei Mongol typical steppe
LÜ Ya-Xiang, QI Zhi-Yan, LIU Wei, SUN Jia-Mei, PAN Qing-Min
Chin J Plant Ecol . 2021, (4): 334 -344 .  DOI: 10.17521/cjpe.2020.0277

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