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| 淮北平原农林复合生态系统非生长季CO2通量变化特征 | |
| 引用本文： | 李新玉,耿绍波,赵淑琴,佟志彬,王晶,张俊英. 淮北平原农林复合生态系统非生长季CO2通量变化特征[J]. 水土保持研究, 2011, 18(5): 132-138,143 |
| 作者姓名： | 李新玉 耿绍波 赵淑琴 佟志彬 王晶 张俊英 |
| 作者单位： | 1. 河南西平县林业局,河南西平,463900 2. 北京林业大学水土保持学院,水土保持与荒漠化防治教育部重点实验室,北京100083 3. 河北省林业局,石家庄,050081 4. 河南省林业科学研究院,郑州,450003 5. 邢台市林业局,河北邢台,054000 |
| 基金项目： | 林业公益性行业科研专项“华北平原杨树人工林碳通量测算技术研究(200804013)” |
| 摘 要： | 采用开路式涡度相关系统对淮北平原农林复合生态系统非生长季的CO2通量特征进行连续监测,并基于晴好天气10Hz高频数据直接计算而来的经过简单修正的通量数据来探讨河南省西平县杨树人工林非生长季节CO2涡度通量的变化特征。结果表明：（1）生态系统CO2通量具有明显的日变化和季节变化,在日尺度上整个生长季白天表现为碳吸收,在月尺度上秋末和初春表现为明显的碳汇功能;（2）通过对比生态系统CO2通量和土壤呼吸速率,发现土壤呼吸速率对生态系统碳通量的贡献小于植物对它的贡献;（3）5cm土壤呼吸与土壤温度的日内和日际相关关系显著,但生态系统CO2通量与其相关关系不够显著;（4）5cm土壤呼吸的日内变化与土壤含水量相关关系显著,而土壤呼吸日际以及生态系统CO2通量与其相关关系不显著;（5）降雨和复杂的降水过程（如雨夹雪等）过后,生态系统的碳吸收有增加的趋势;而降雪和雾天后生态系统的碳释放有增强的趋势。 |
| 关 键 词： | 淮北平原农林复合生态系统 CO2通量 土壤呼吸 降水影响 |
CO_2 Flux of an Agroforestry Ecosystem in Non-growing Seasons in Huaibei Plain |
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| LI Xin-yu,GENG Shao-bo,ZHAO Shu-qin,TONG Zhi-bin,WANG Jing,ZHANG Jun-ying(.Forestry Bureau of Xiping County of He'nan Province,Xiping,He'nan ,China,.Key Laboratory of Soil , Water Conservation Desertification Combating of Ministry of Education,College of Soil , Water Conservation,Beijing Forestry University,Beijing . CO_2 Flux of an Agroforestry Ecosystem in Non-growing Seasons in Huaibei Plain[J]. Research of Soil and Water Conservation, 2011, 18(5): 132-138,143 | |
| Authors: | LI Xin-yu GENG Shao-bo ZHAO Shu-qin TONG Zhi-bin WANG Jing ZHANG Jun-ying(.Forestry Bureau of Xiping County of He'nan Province Xiping He'nan China .Key Laboratory of Soil Water Conservation Desertification Combating of Ministry of Education College of Soil Water Conservation Beijing Forestry University Beijing |
| Affiliation: | LI Xin-yu1,GENG Shao-bo2,ZHAO Shu-qin3,TONG Zhi-bin3,WANG Jing4,ZHANG Jun-ying5(1.Forestry Bureau of Xiping County of He'nan Province,Xiping,He'nan 463900,China,2.Key Laboratory of Soil and Water Conservation Desertification Combating of Ministry of Education,College of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,3.Department of Forestry,Hebei Province,Shijiazhuang 050081,4.Forestry Research Institute of He'nan Province,Zhengzhou 450003,5.Forestry Department o... |
| Abstract: | The research of the vorticity flux variation of the polar plantation in the non-growing season in Xiping,He'nan Province was carried out.The research method was to use the OPEC to monitor the CO2 flux of the agroforestry ecosystem in non-growing season in Huaibei Plain,and calculate out the flux data by using the high frequency data in 10 Hz.The results showed that:(1) the ecosystem CO2 flux changed obviously at the scale of day and reason,which daytime displays on the entire growth season was the carbon ab... |
| Keywords: | agroforestry ecosystem in Huaibei Plain CO2 flux soil respiration effect of rainfall |
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