CAJ | 학술논문

利用次生林主林层胡桃楸34株平均木(胸径为11.0～39.1 cm)的树干解析数据,结合反映植物生长空间的冠幅,进行5,10和15年抚育间隔期的单株材积定期生长量、林分蓄积增长量与生长空间关系的研究,建立不同抚育间隔期胡桃楸胸径与适宜生长空间关系的模型;利用林冠下层27株胡桃楸平均木(胸径为4.6～14.3 cm)的树干解析数据,评价适宜生长空间模型应用于被压状态胡桃楸时的生长促进效果.结果表明:1)3参数S型曲线模型和二项式模型分别能够很好反映胡桃楸前5,10和15年间单株材积定期生长量、林分蓄积增长量与冠幅的关系;2)不同抚育间隔期胡桃楸胸径与适宜生长空间关系的模型为幂函数模型(y=a×x~b);3)对数函数模型(y=a×ln(x)+b)能显著反映适宜生长空间下胸径与材积定期生长量的关系;4)适宜生长空间下胡桃楸5,10和15年材积定期生长量至少比生长空间受限条件下的林木提高97.8%,114.4%和128.5%.采用5,10,15年抚育间隔期时,不同胸径胡桃楸的适宜生长空间分别是相应胸径的0.256 6～0.368 7,0.344 1～0.447 1和0.449 1～0.504 6倍.
이용차생림주림층호도추34주평균목(흉경위11.0～39.1 cm)적수간해석수거,결합반영식물생장공간적관폭,진행5,10화15년무육간격기적단주재적정기생장량、림분축적증장량여생장공간관계적연구,건립불동무육간격기호도추흉경여괄의생장공간관계적모형;이용림관하층27주호도추평균목(흉경위4.6～14.3 cm)적수간해석수거,평개괄의생장공간모형응용우피압상태호도추시적생장촉진효과.결과표명:1)3삼수S형곡선모형화이항식모형분별능구흔호반영호도추전5,10화15년간단주재적정기생장량、림분축적증장량여관폭적관계;2)불동무육간격기호도추흉경여괄의생장공간관계적모형위멱함수모형(y=a×x~b);3)대수함수모형(y=a×ln(x)+b)능현저반영괄의생장공간하흉경여재적정기생장량적관계;4)괄의생장공간하호도추5,10화15년재적정기생장량지소비생장공간수한조건하적림목제고97.8%,114.4%화128.5%.채용5,10,15년무육간격기시,불동흉경호도추적괄의생장공간분별시상응흉경적0.256 6～0.368 7,0.344 1～0.447 1화0.449 1～0.504 6배.
In order to scientifically manage Juglans mandshurica, combined with its crown width reflecting growing space, the relationship between growing space and individual, stock volume periodic increment of 5, 10 and 15 years' interval for bringing up Juglans mandshurica in second growth forests of Changbai Mountains was studied based on the 34 analytical trees (DBH 11.0 ～39.1 cm) growing in canopy layer. Regression models of optimal growing space in different upbringing intervals to DBH were constructed. Based on analytical data from 27 trees (DBH 4.6 ～ 14.3 cm) growing in understory, optimal growing space models for growing trees in understory were established to evaluate nurturing effects. The 3-parameter sigmoid models and quadratic models were able to well describe the relationship between individual, stand periodic volume increment to crown width of Juglans mandshurica, respectively. The power models could significantly describe the relationship between optimal growing space in different upbringing intervals to DBH of Juglans mandshurica. The logarithm models could significantly describe the relationship between periodic volume increment to DBH of Juglans mandshurica growing in optimal growing space. The periodic volume increments of J. mandshuria in 5, 10 and 15 years' interval growing in optimal growing space at least increased 97.8% ,114.4% and 128.5% , respectively compared with the suppressed space. The ratioes of optimal growing space (m) for bringing up Juglans mandshurica in 5, 10 and 15 years' interval to DBH (cm) was 0.256 6 ～ 0.368 7, 0.344 1 ～ 0.447 1, and 0.449 1～0.504 6, respectively.