鼎湖山主要森林生态系统地表CH4通量 |
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| 出 版 社：生态科学 |
| 发表时间：2006 |
| 台 站：
鼎湖山森林生态系统定位研究站
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| 作 者：周存宇，周国逸，王迎红， 张德强，刘世忠 |
| 点 击 率：4469 |
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| 关 键 字：鼎湖山cH4通量凋落物季节动态 |
| 摘 要：利用静态箱一气相色谱法对鼎湖山3种处于演替不同阶段的森林类型一季风常绿阔叶林、针阔叶混交林和马尾松林一的地表cH4通量进行了为期一年的原位观测和研究，结果表明：3种林型地表吸收CH4通量按从大到小的顺序为：季风林>混交林>松林，不同林型间的cH4通量差异与森林土壤的性质有密切关系，即土壤容重越小、有机质含量越多则土壤吸收CH4通量越高：3种林型地表CH4通量受地表凋落物影响均不明；全年而言3种林型地表CH 通量与土壤温度和湿度都没有明显的相关性，但在旱季土壤温度成为控制地表CH4通量的丰要因子。 |
| 关 键 字(英文)：Dinghushan biosphere reserve；CI-I4 flux；Litter；Seasonal dynami cs |
| 摘 要(英文)：The CH4 uptake flux by soils of three types of forest in Dinghushan reserve—monsoon evergreen broad—leaved forest．coniferous and broad．1eaved mixed forest and pine forest，which are in different stages of vegetation succession—were measured for one year by using static chamber-gas chromatograph technique．Highest CHd uptake flux was found f0r monsoon forest。then followed by mixed forest and pine forest．The difie：rence of CH4 flux among the different forests closely relates to their soi1 properties．Th at is，the lower soil bulk density iS and the more soil organic matter is，the higher CH4 uptak e flux by s0i】
iS．Litteronthe soil surfacehadlittle efect ontheCH4fluxforthethreeforests．CHduptakefluxes didnot show any significant
depe ndency on soil tempe rature and soil moisture through the whole year,but soil temperature had positive efeCt on CH4
uptake flux during dry season． |
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 鼎湖山主要森林生态系统地表CH4通量_2006 生态科学 周存宇.pdf |
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