April 23, 2024 Niu, D., X. Yuan, A. J. Cease, H. Wen, C. Zhang, H. Fu and J. J. Elser. 2018. The impact of nitrogen enrichment on grassland ecosystem stability depends on nitrogen addition level. Science of The Total Environment 618(Mar):1529-1538. Home » Niu, D., X. Yuan, A. J. Cease, H. Wen, C. Zhang, H. Fu and J. J. Elser. 2018. The impact of nitrogen enrichment on grassland ecosystem stability depends on nitrogen addition level. Science of The Total Environment 618(Mar):1529-1538.