The study on the parse wood got the fitting empirical equation of tree growth, in which the tree growth rate was used as the variable and time as the in- dependent variable. The arithmetical operation to the function ...The study on the parse wood got the fitting empirical equation of tree growth, in which the tree growth rate was used as the variable and time as the in- dependent variable. The arithmetical operation to the function got the maturity age of tree growth, and the expected maturity of Ulmus pumila was 21 a. In addition, the application as well as the research direction and matters needing attention were proposed.展开更多
文摘The study on the parse wood got the fitting empirical equation of tree growth, in which the tree growth rate was used as the variable and time as the in- dependent variable. The arithmetical operation to the function got the maturity age of tree growth, and the expected maturity of Ulmus pumila was 21 a. In addition, the application as well as the research direction and matters needing attention were proposed.