CAJ | 학술논문

[目的]对引进的3个种源墨西哥柏苗木生物量及根系生长状况进行研究，为今后困难地造林提供技术支撑。[方法]以引进的3个种源3个龄级（1龄、2龄、3龄）墨西哥柏实生幼苗为研究对象，对其地上、地下部分生物量及根系形态特征、表面积、体积等方面进行研究。[结果]随龄级的增加，幼苗的株高和地径生长明显增加，不同种源苗木差异较大，且幼苗的根冠比、根系长度、表面积与体积呈上升趋势；2、3龄级幼苗整体稳定生长，中根、大根在总根系中所占比重增大，地下部分需要更多的光合产物，幼苗根系逐渐向中根和大根发育。[结论]地上生物量与根系形态各指标间存在相关性，根系形态与生物量关系密切。不同种源幼苗在相同的生长环境和时间内，积累生物量的能力不同。
[목적]대인진적3개충원묵서가백묘목생물량급근계생장상황진행연구，위금후곤난지조림제공기술지탱。[방법]이인진적3개충원3개령급（1령、2령、3령）묵서가백실생유묘위연구대상，대기지상、지하부분생물량급근계형태특정、표면적、체적등방면진행연구。[결과]수령급적증가，유묘적주고화지경생장명현증가，불동충원묘목차이교대，차유묘적근관비、근계장도、표면적여체적정상승추세；2、3령급유묘정체은정생장，중근、대근재총근계중소점비중증대，지하부분수요경다적광합산물，유묘근계축점향중근화대근발육。[결론]지상생물량여근계형태각지표간존재상관성，근계형태여생물량관계밀절。불동충원유묘재상동적생장배경화시간내，적루생물량적능력불동。
[Objective] The aim was to explore biomass and growth of Cupressus lusitanica seedlings in order to provide technological supports for afforestation. [Method] The introduced Cupressus lusitanica seedlings at different ages were re-searched to explore biomass (ground or underground) morphological shape, surface area and volume of a root system. [Result] As age grew, plant height and ground diameter increased significantly, varying dramatical y upon seed provenance, and root-canopy ratio, root length, surface area and volume of seedlings were increas-ing. Specifical y, seedlings at two-year-old and three-year-old kept a stable growth;moderate and big roots took higher proportions in a root system; underground parts for a plant required more photosynthetic products; root systems of young seedlings grew to moderate and big roots. [Conclusion] Ground biomass is of correlation with root system indices and the morphological characteristics of root systems are close to biomass. The accumulation capacity of biomass differed for seedlings from differ-ent provenances, even in the same environment and at the same time.