Luo, W., C. Xu, W. Ma, X. Yue, X. Liang, X. Zuo, A. K. Knapp, M. D. Smith, J. Sardans, F. A. Dijkstra, J. Penuelas, Y. Bai, Z. Wang, Q. Yu and X. Han. 2018. Effects of extreme drought on plant nutrient uptake and resorption in rhizomatous vs bunchgrass-dominated grasslands. Oecologia 188(2):633-643.