首页|不同混交比例马尾松林细根生物量及其养分研究

不同混交比例马尾松林细根生物量及其养分研究

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采用固定样地调查法对不同混交比例的马尾松林细根生物量和细根养分含量进行比较分析.研究结果表明,细根生物量和细根养分含量垂直分布规律明显,即随着土层加深细根生物量和细根的N、P、K养分含量逐渐减少.在表土层中,0~10 cm土层中细根生物量最多,N、P、K含量也是最高.对不同混交比例林分的比较,发现马尾松比例为41%~60%细根的生物量最高.马尾松比例为41%~60%的针阔混交林细根N、P的养分储量也最高.不同混交比例林分中细根的N、P、K的含量存在一定差异.
Biomass and nutrient of fine-root in masson pine mixed forests
According to the proportion (0% ~20%,21%~40% ,41% ~60 % ,61% ~80% and 81% ~ 100% ) of masson pine in the mixedwoods, the biomass and nutrients of fine-root in different stands were analyzed. The results showed that the fine-root biomass in the surface soil layer was more than that in deeper soil. The contents of N, P and K of fine-root were decreased from the surface to deeper layer under the ground, and the storages of N, P and K of fine-root had similar trend. For different proportion masson pine mixed broad-leaved stands, the 41% ~60% masson pine mixed forest had the highest fine-root biomass. The results also showed that the highest contents of N and P.

masson pinemixedwoodfine-root biomassnutrient contentnutrient storage

王力、汪永文、张令峰、王丽丽、傅松玲

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安徽农业大学林学与园林学院,合肥,230036

马尾松 针阔混交林 细根生物量 养分含量 养分储量

教育部留学回国人员基金

2010

安徽农业大学学报
安徽农业大学

安徽农业大学学报

CSTPCDCSCD北大核心
影响因子:0.412
ISSN:1672-352X
年,卷(期):2010.37(2)
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