00982nas a2200133   4500008004100000245005900041210005900100300001100159490000600170520054300176100001800719700002400737856008700761       1994                        eng d00aExperimental manipulation of natural plant communities0 aExperimental manipulation of natural plant communities  a94 -980 v93 aAttempts to elucidate the factors controlling the structure of plant communities have relied increasingly on field experiments. This is a powerful approach for testing theoretical predictions that offers important advantages over observational and comparative studies. However, field experiments suffer from intrinsic difficulties as well as more-easily remediable limitations. Recent progress has been made by new approaches including the use of multifactor experiments, and the development and dissemination of better statistical tools.1 aGurevitch, J.1 aCollins, Scott., L.  uhttp://knz.lternet.edu/content/experimental-manipulation-natural-plant-communities