CAJ | 학술논문

选择山西省吕梁山脉北端芦芽山沿7个海拔梯度测定了林线树种白杄(Picea meyeri )各组织非结构性碳水化合物(NSC)及其组分含量和全氮含量。结果表明：白杄各组织氮含量均表现出随海拔升高而增加的趋势(茎干除外)；NSC含量均随海拔升高而增加，木质化组织中的可溶性糖与淀粉质量比也表现林线高于中低海拔；除茎干外，各组织NSC-N质量比则表现出随海拔升高先减小后增加的趋势。研究表明，氮含量和 NSC 含量没有限制芦芽山林线树木的生长和发展，即林线树木不存在氮受限和碳限制。
선택산서성려량산맥북단호아산연7개해발제도측정료림선수충백천(Picea meyeri )각조직비결구성탄수화합물(NSC)급기조분함량화전담함량。결과표명：백천각조직담함량균표현출수해발승고이증가적추세(경간제외)；NSC함량균수해발승고이증가，목질화조직중적가용성당여정분질량비야표현림선고우중저해발；제경간외，각조직NSC-N질량비칙표현출수해발승고선감소후증가적추세。연구표명，담함량화 NSC 함량몰유한제호아산림선수목적생장화발전，즉림선수목불존재담수한화탄한제。
Carbohydrate and nitrogen supply conditions of alpine trees, and their relationship with timberline formation are investigated.Concentrations of tissue NSC and components,total nitrogen of Picea meyeri along seven elevational gradients from the lowest elevation to alpine timberline at the end of growing season on the north slope of Luya Mountain,Shanxi,China were studied.Total nitrogen concentration showed an increasing trend with elevation in all tissues (except stem ). NSC contents in all tissues increased significantly with elevation,and the soluble/starch ratio in lignified tissues were also higher in timberline trees than in lower elevation trees.Except stem,NSC-N ratio in all tissues initially decreased,but then increased with elevation.Nitrogen and NSC contents therefore do not limit growth and development of trees studied at the timberline of Luya Mountain;there was no nitrogen and carbon limitation at alpine timberline.