| 华北低丘山地人工混交林净生态系统碳交换的变化特征 |
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| 引用本文： | 同小娟,张劲松,孟平,黄辉,国琳,尹昌君,高峻.华北低丘山地人工混交林净生态系统碳交换的变化特征[J].林业科学,2010,46(3). |
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| 作者姓名： | 同小娟 张劲松 孟平 黄辉 国琳 尹昌君 高峻 |
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| 作者单位： | 1. 北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083;中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京,100091
2. 中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京,100091 |
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| 基金项目： | 科技部“十一五”国家科技支撑计划课题(2006BAD03A11);;黄河小浪底森林生态系统定位研究站基金资助项目 |
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| 摘 要： | 采用涡度相关技术对华北低丘山地30年生栓皮栎-刺槐-侧柏人工混交林生态系统进行连续2年的碳通量观测。结果表明:人工混交林净生态系统碳交换(NEE)的年际和季节变化都很明显,但日变化只在生长季(4—10月)才变得显著。2006和2007年人工混交林NEE的变化范围分别在-27.1～8.1和-24.4～9.8gCO2·m-2d-1,最大月平均CO2吸收量分别出现在5月和7月。生长季净碳吸收约占全年的96%。人工混交林是较强的碳汇,2006和2007年净碳吸收量分别为549.1和445.4gC·m-2a-1。春季干旱是2007年人工混交林净碳吸收显著下降的主要原因。
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| 关 键 词： | 人工混交林 净生态系统碳交换 涡度相关 |
Characteristics of Net Carbon Exchange over a Mixed Plantation in a Hilly Area of the North China |
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| Tong Xiaojuan, Zhang Jinsong Meng Ping Huang Hui Guo Lin Yin Changjun Gao Jun.Characteristics of Net Carbon Exchange over a Mixed Plantation in a Hilly Area of the North China[J].Scientia Silvae Sinicae,2010,46(3). |
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| Authors: | Tong Xiaojuan Zhang Jinsong Meng Ping Huang Hui Guo Lin Yin Changjun Gao Jun |
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| Institution: | 1.Key Laboratory for Silviculture and Conservation of Ministry of Education/a>;Beijing Forestry University Beijing 100083/a>;2.Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration Research Institute of Forestry/a>;CAF Beijing 100091 |
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| Abstract: | In recent years,forest areas in China increased largely thanks to afforestation.The plantation area accounts for 30% of the total forest areas of China.To understand the potential carbon sink of the plantation,CO2 flux was measured continuously from 2006 and 2007 using the eddy covariance technique in a 30-year-old mixed plantation(Quercus variabilis,Robinia pseudoacacia and Platycladus orientalis) in a hilly area of the North China.The results showed inter-annual and seasonal variations of net ecosystem ca... |
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| Keywords: | mixed plantation net ecosystem carbon exchange eddy covariance |
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