phs-201501-0018 ArticleInAPeriodical 2015 Photosynthetica 53 1 https://ps.ueb.cas.cz/artkey/phs-201501-0018.php https://doi.org/10.1007/s11099-015-0081-x 154-156 De RouwA. MaxwellJ. F. GirardinC. Foliar δ<sup>13</sup>C values, photosynthetic pathway and functional type for 238 common species on farm land and disturbed forest in Laos Despite the elimination of the original forest and frequent cultivation using slash and burn, a large spread in leaf δ<sup>13</sup>C was recorded in weeds, crops, and bush fallow species, reflecting a forest environment rather than a broken canopy or open environment.