摘要
利用山东省宁阳县3种不同立地条件下的107-杨树速生丰产林临时标准地和解析木调查材料,以Richards生长函数为基本模型,拟合了不同立地条件下的107-杨树速生丰产林生长模拟预测模型。结果表明,107-杨树速生丰产林的生长规律呈现"S"型曲线,用Richards模型拟合其胸径、树高、材积的生长精度很高,P值均小于0.0001;使用未参加建模的107-杨解析木数据对构建的预测方程进行T检验,发现预测值与实测值之间无显著差异(P均大于0.05)。可见,利用所建生长模型可以对107-杨树速生丰产林的生长动态进行预测,为107-杨树人工林的合理经营提供依据。
According to Richards function,several models were imitated for estimating 107-poplar based on 107-poplar temporary and fixed standard stands in Ningyang Shandong.The growth of the 107-poplar plantations presented an ＂s-shaped＂ curve,and high accuracy was exhibited by the growth prediction model when it was used to imitate the growth of breast diameter,height and volume of the trees,P0.0001;Using some data of 107-poplar plantation that are not used for building models to test,the result showed that the measured values and simulated values had no significant difference（P0.05）.Therefore,the models may be applied to predict the growth of 107-poplar and provide basis in artificial forest reasonable management.
出处
《山东农业大学学报（自然科学版）》
CSCD
北大核心
2010年第1期23-26,共4页
Journal of Shandong Agricultural University：Natural Science Edition
基金
国家自然科学基金项目"风险状态下速生丰产林规划决策技术研究"
关键词
107-杨树
速生丰产林
立地条件
生长模型
生长预测
107-poplar
fast-growing and high-yield plantation
site condition
growth model
growth prediction
