Age-independent Growth Model of Platycladus orientalis in Beijing
In order to make a more scientific and reasonable management plan for Platycladus orientalis plantation in Beijing,an age-independent DBH growth model of Platycladus orientalis plantation in Miaocheng Town of Huair-ou District of Beijing Municipality was constructed under the premise of unknown age,so as to obtain more accurate dynamic growth information of Platycladus orientalis.Based on Logistic,Gompertz and Richards as the basic mod-el,the age-independent DBH growth model of Platycladus orientalis was constructed by algebraic difference meth-od.The results showed that there was no significant difference in the age-independent DBH growth models of Platycladus orientalis constructed by Logistic,Gompertz and Richards difference models,respectively.The determi-nation coefficients(R2)of the three models were 0.471 2,0.466 2 and 0.474 1,and the root mean square errors(RMSE)were 1.446 0,1.452 5 and 1.442 5,respectively.The correlation coefficient between the predicted value and the actual value of the age-independent DBH growth model constructed by the Logistic difference model was 0.47.Three age-independent DBH growth models of Platycladus orientalis can reasonably reveal the growth law of Platycladus orientalis in Beijing.
万方数据
维普
