不同更新方式对土壤轻组有机碳的影响
he impact of different regeneration patterns of old-growth Chinese fir on LFOC
通过对福建南平老龄杉木人工林及其采伐后自然更新林、人工更新林3种林分样地土壤轻组有机碳进行研究。结果表明，不同更新方式均造成土壤轻组含量、轻组有机碳含量和轻组有机碳分配比例的下降，其中以表层土壤差异最为明显，人工更新对土壤轻组有机碳的影响最明显。土壤轻组物质主要在土壤表层聚集，老龄杉木人工林、其自然更新林和人工更新林0-40 cm土层轻组含量分别占整个土层的90.9%、89.8%和86.4%；人工更新林和自然更新林0-5 cm土层轻组有机碳含量分别下降46.08%和36.13%（P<0.05），土壤轻组有机碳分配比例分别下降了25.98%和25.05%。
he LFOC(light fraction of carbon) of different regeneration patterns in the aged Chinese fir was measured in Nanping, Fujian. The results showed that the contents of LF and LFOC, and the allocation of LFOC distribution was decreased with the two regeneration patterns, especially the difference in the top soil(P<0.05), and the significant decline was in artificial regeneration forest. The LF was mainly happened in the top soil, and the LF was 30.70 g•kg-1、19.80 g•kg-1 and 24.42 g•kg-1 in the aged Chinese fir、artificial regeneration and natural regeneration patterns, respectively. The 0-5cm LFOC was declined by 46.08% and 36.13%, and allocation ratio was 25.98% and 25.05% in artificial regeneration and natural regeneration patterns, respectively
邹双全、杨智杰、范广阔
林业
杉木更新方式轻组有机碳
hinese firregeneration patternLFOC
邹双全,杨智杰,范广阔.不同更新方式对土壤轻组有机碳的影响[EB/OL].(2009-02-10)[2025-08-19].http://www.paper.edu.cn/releasepaper/content/200902-428.点此复制
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