桂北地区不同林龄油茶林碳储量分配格局

调查并分析了桂北地区不同林龄油茶人工林生态系统各部分的碳储量。结果表明:幼龄林、中林龄、老龄林油茶人工林生态系统总碳储量分别为91.58、127.97和110.14 mg/hm~2,植被层碳储量分别为6.41、24.12和31.77 mg/hm~2,土壤层碳储量分别为85.17、103.85和78.37mg/hm~2;乔木层和土壤层是生态系统总碳储量的主体,两者中的碳储量所占比例达到总碳储量的98%以上。

Carbon Storage and its Distribution in Camellia oleifera Plantations at Different Stand Ages in North Guangxi

The carbon storage of Camellia oleifera stands at different stand ages (young, middle-aged, old-aged forest) were investigated and calculation. The results showed that the total carbon storage of Camellia oleifera plantation ecosystems at different stand ages were 91.58, 127.97, and 110.14 mg/hm2, respectively; the carbon storage of vegetation layer were 6.41, 24.12, and 31.77 mg/hm2, respectively; the carbon storage of soil layer were 85.17, 103.85, and 78.37 mg/hm2, respectively. Carbon storage of each layer in Camellia oleifera plantation had different percentages of total carbon storage in the plantation, which in soil layer and tree layer was the highest and the sum of the two contributed more than 98% of the total carbon storage in the Camellia oleifera forest ecosystems.