摘要
以山西省现场调查的30块华北落叶松(Larixprincipis-rupprechtiiMayr)人工林临时标准地为材料,利用分布密度函数对林分的直径分布进行模拟和预测。检验结果表明:86.67%的服从分布,拟合效果良好,并据此建立起了a、b、c参数的预测模型。理论参数方程可用于华北落叶松人工林经营管理的实践中,为合理经营华北落叶松人工林提供了科学的理论依据。
On the basis of the investigation of 30 standard plots of Larix principis-rupprechtii Mayr plantation forest in Shanxi province, distribution density function was used to imitate and predict the diameter distribution of Larix principis-rupprechtii Mayr plantation. According to the test result,86.67% of the laws of Larix principis-rupprechtii Mayr plantation＇s diameter followed Weibull distribution, the fitting effect was fine and the forecast models with a, b and c were established. Theoretical parameters can be applied to practice of management of Larix principis-rupprechtii Mayr plantation, a scientific theory was properly provided for managing Larix principis-rupprechtii Mayr plantations.
出处
《四川林业科技》
2009年第2期42-46,41,共6页
Journal of Sichuan Forestry Science and Technology
关键词
华北落叶松人工林
分布密度函数
直径分布
预测
Larix principis-rupprechtii Mayr plantation, Weibull distribution density function, Diameter distribution, Prediction
