CAJ | 학술논문

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.
이용산동성저양현3충불동입지조건하적107-양수속생봉산림림시표준지화해석목조사재료,이 Richards생장함수위기본모형,의합료불동입지조건하적107-양수속생봉산림생장모의예측모형.결과표명,107-양수속생봉산림적생장규률정현"S"형곡선,용Richards모형의합기흉경、수고、재적적생장정도흔고,P치균소우0.0001;사용미삼가건모적107-양해석목수거대구건적예측방정진행T검험,발현예측치여실측치지간무현저차이(P균대우0.05).가견,이용소건생장모형가이대107-양수속생봉산림적생장동태진행예측,위107-양수인공림적합리경영제공의거.
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,P<0.0001;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(P>0.05).Therefore ,the models may be applied to predict the growth of 107-poplar and provide basis in artificial forest reasonable management.