Individual Crown Width Prediction Models and Accuracy Appraisal for Platycladus orientalis Plantation in Low Mountainous Area

doi:10.13466/j.cnki.lyzygl.2014.02.011

Abstract

Abstract: Individual crown width growth models for Platycladus orientalis plantation in Beijing low mountain area were established by linear regression model,multiple linear regression model and other models in accordance with data measured from 89 sample plots.The results show that the crown distribution range of Platycladus orientalis plantation in low mountain sunny slope is larger than that of shady slope,and the average crown width is significantly higher than that of shady slope.The forecast accuracy of multiple linear regression model is highest,the R² values are 0.751 and 0.770 respectively.T test of the multiple linear regression model reveals that the actual value is fitted well with the predicted value.The results could be applied to the crown width growth forecast of Platycladus orientalis plantations in Beijing low mountainous regions to provide a theoretical basis for the scientific management of Platycladus orientalis plantation.

Key words: Platycladus orientalis plantation, individual crown width models, accuracy appraisal

CLC Number:

S758
S791.38

LIU Ping, WANG Yutao, MA Lüyi. Individual Crown Width Prediction Models and Accuracy Appraisal for Platycladus orientalis Plantation in Low Mountainous Area[J]. FOREST RESOURCES WANAGEMENT, 2014, 0(2): 52-57.

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