| Abstract: | From the biological hypothesis of tree growth,the attenuate epuation 1/y.dt/dy=q.(1ny/A)p was presented and the generalizedSchumacher growth equation y=A·e-b(c±t)gp-1/1 was derivedtheoretically According to different power values of p of the attenuate equation,two types of growth equations;LI-A (P>1) and LI-B (0 were developed.Between them,there is the Gompertz function (p=1) to separate one from the other.All of the three types are independent of each other.After analysing the capability of analysis and suitability of the equations,it was concluded that tree growth belongs to the LI-A type,while biological population growth (or seasonal growth of various organs) with an initial value,belongs to the LI-B type.The equations were fitted to height growth of three species,and to bamboo shoot growth,these results were generally good. |
