| 长白山阔叶红松林CO2廓线和CO2贮存的动态 |
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| 引用本文： | 韩士杰,林丽莎,于贵瑞,张军辉,吴家兵,赵晓松,关德新.长白山阔叶红松林CO2廓线和CO2贮存的动态[J].林业研究,2003,14(4):275-279. |
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| 作者姓名： | 韩士杰 林丽莎 于贵瑞 张军辉 吴家兵 赵晓松 关德新 |
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| 作者单位： | 中科院应用生态研究所,中科院应用生态研究所,中科院地理科学与自然资源研究所,中科院应用生态研究所,中科院应用生态研究所,中科院应用生态研究所,中科院应用生态研究所 沈阳110016,中国,沈阳110016,中国,北京100101,中国,沈阳110016,中国,沈阳110016,中国,沈阳110016,中国,沈阳110016,中国 |
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| 基金项目： | This study is supported by The Development Plan of State Key Fundamental Research of China (973) (contract No. 2002CB412502),by Knowledge Innovation Project of CAS (KZCX1-SW-01-03) and by Natural Science Foundation of China (30170167). |
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| 摘 要： | 从1999年8至10月,2000年的4至6月,2002年8月至2003年9月,在平均树高为26米的长白山阔叶红松林内,用红外气体分析仪(2250D,LI-CORInc.和LI-COR,820)测定了不同高度的二氧化碳浓度。根据测定的数据,分析了阔叶红松林二氧化碳廓线的日变化和季节变化动态。结果表明:CO2浓度的垂直分布在白天和夜间是不同的,在接近地面处CO2浓度始终最大。从季节CO2廓线看出,在植物生长季节林冠处CO2浓度有明显的成层现象,不同高度(60~2.5m)的CO2浓度3月份变化较小差值为10mmol穖ol-1,而在7月份变化较大,差值为60mmol穖ol-1。7月份林冠处(22,26,32m)CO2浓度梯度较大,浓度差为8mmol穖ol-1。计算位于涡度相关仪器之下的40米高空气柱中CO2贮存状况表明,年际贮存是负值,但对NEE的贡献很小。图4参11。
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| 关 键 词： | 二氧化碳 长白山 浓度 分布图 贮藏量 红松 森林 阔叶树 树冠 |
| 收稿时间： | 2 September 2003 |
Dynamics of profiles and storage of carbon dioxide in broadleaved/Korean forest in Changbai Mountain |
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| Han?Shi-jieEmail author,Lin?Li-sha,Yu?Gui-rui,Zhang?Jun-hui,Wu?Jia-bing,Zho?Xiao-song,Guan?De-xin.Dynamics of profiles and storage of carbon dioxide in broadleaved/Korean forest in Changbai Mountain[J].Journal of Forestry Research,2003,14(4):275-279. |
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| Authors: | Email author" target="_blank">Han?Shi-jieEmail author Lin?Li-sha Yu?Gui-rui Zhang?Jun-hui Wu?Jia-bing Zho?Xiao-song Guan?De-xin |
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| Institution: | (1) Institute of Applied Ecology, CAS, 110016 Shenyang, P.R. China;(2) Institute of Geographic Sciences and Natural Resources Research, CAS, 100101 Beijing, P. R. China |
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| Abstract: | CO2 concentrations at different heights in a broadleaved/Korean forest (with a mean height of 26 m) were measured with infrared
gas analyzer IRGA (model 2250D, LI-COR Inc. and LI-COR, 820) from Aug. to Oct. of 1999, Apr. to Jul. of 2000, and from Aug.
2002 to Sept. 2003. Based on the collected data, the diurnal and seasonal dynamics of profiles and storage of carbon dioxide
in the forest were analyzed. The diurnal CO2 profiles showed that the vertical distribution of CO2 concentration were different for daytime and nighttime, and the CO2 concentration was highest close to forest floor, no matter at daytime and nighttime. The seasonal profiles of CO2 showed that stratification in the canopy was evident during growth season. CO2 concentrations at different heights (60 m to 2.5 m) had a little change in March, with a difference of 10 μmol·mol−1, but had a significant change in July, with a difference of 60 μmol·mol−1. In July, there also existed a greater gradient of CO2 concentrations at canopy (22, 26 and 32 m), with a difference of 8 μmol·mol−1. The calculated total storage (ΔC/Δt) of CO2 in the air column with height of 40 m beneath eddy covariance instrument was negative, and made a little contribution to
NEE.
Foundation Item: This study is supported by The Development Plan of State Key Fundamental Research of China (973) (contract No. 2002CB412502),
by Knowledge Innovation Project of CAS (KZCX1-SW-01-03), and by Natural Science Foundation of China (30170167).
Biography: HAN Shi-jie (1956), male, professor in Institute of Applied Ecology, CAS, Shenyang, 110016, China.
Responsible editor: Chai Ruihai |
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| Keywords: | CO2 concentration CO2 profile CO2 storage Broadleaved/Korean pine forest Vertical distribution Concentration gradient |
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