CAJ | 학술논문

为了了解人工造林过程对土壤碳储量的影响，对燕山西部山地常见的华北落叶松人工林和杨桦天然次生林土壤有机碳含量进行了研究。结果表明，华北落叶松人工林和杨桦天然次生林的土壤剖面平均有机碳含量分别为30．45 g/kg和28．45 g/kg ，二者没有明显差异；2种林分的土壤有机碳含量均随着土层深度的增加而降低，下降幅度则随深度的增加逐渐减缓，表层土壤对土壤的碳存储贡献更大。总的来看，土壤有机碳含量在深层（30 cm以下）相邻土层之间差异不显著，说明深层土壤中，有机碳含量变化较小。由以上结果可以得出结论，在造林措施适当、人为干扰较少的条件下，人工林同样可以维持与天然林相近的较高的土壤碳储量。
위료료해인공조림과정대토양탄저량적영향，대연산서부산지상견적화북락협송인공림화양화천연차생림토양유궤탄함량진행료연구。결과표명，화북락협송인공림화양화천연차생림적토양부면평균유궤탄함량분별위30．45 g/kg화28．45 g/kg ，이자몰유명현차이；2충림분적토양유궤탄함량균수착토층심도적증가이강저，하강폭도칙수심도적증가축점감완，표층토양대토양적탄존저공헌경대。총적래간，토양유궤탄함량재심층（30 cm이하）상린토층지간차이불현저，설명심층토양중，유궤탄함량변화교소。유이상결과가이득출결론，재조림조시괄당、인위간우교소적조건하，인공림동양가이유지여천연림상근적교고적토양탄저량。
Soil organic carbon content (SOCC) of larch plantation and natural secondary pop-lar-birch forest in west region of Yanshan Mountains was studied in this paper for under-standing the effects of afforestation over soil organic carbon stock .The results showed that SOCC of larch plantation ( 30 .45 g/kg ) was higher than that of secondary poplar-birch forest ( 28 .45 g/kg ) .The SOCC of the both forests decreased with the soil depth .At the same time ,there was significant difference of SOCC between adjacent layers in upper soil but not in lower soil by variance analysis .It was concluded that under proper afforestation meas-ures and less human disturbance ,the plantation could maintain high soil organic carbon stock as natural forests .