TY - RPRT TI - Carbon gain by plants in natural environments: Carbon assimilation analysis provides an understanding of how plants function in diverse environments AU - R.W. Pearcy AU - O. Bjorkman AU - M. M. Caldwell AU - Jon E. Keeley AU - Russell K. Monson AU - B.R. Strain PY - 1987 DO - 10.2307/1310174 UR - https://pubs.usgs.gov/publication/1007737 ID - 1007737 ER -