| 植物——大气N2O的一个潜在排放源 |
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| 引用本文： | 陈冠雄,徐慧,张颖,张秀君,李玥莹,史荣久,于克伟,张旭东. 植物——大气N2O的一个潜在排放源[J]. 第四纪研究, 2003, 23(5): 504-511 |
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| 作者姓名： | 陈冠雄 徐慧 张颖 张秀君 李玥莹 史荣久 于克伟 张旭东 |
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| 作者单位： | 中国科学院沈阳应用生态研究所陆地生态过程重点实验室,沈阳,110016 |
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| 基金项目： | 国家自然科学基金,中国科学院"百人计划",30270131,39770066,49171065,,, |
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| 摘 要： | N22和CH4的重要温室气体。目前,全球N222O不仅是一个普遍存在的自然现象,而且其排放量可达到与土壤排放相比较的水平,因而植物可能是未知的大气N2O的一个重要排放源;植物排放N2O受植物的种类、生长发育阶段、养分供给、光照强度及CO2浓度等因素的影响。
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| 关 键 词： | 植物 N2O排放 N2O源汇估算 |
| 收稿时间： | 2003-05-30 |
| 修稿时间： | 2003-05-30 |
PLANT: A POTENTIAL SOURCE OF THE ATMOSPHERIC N2O |
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| Chen Guanxiong Xu Hui Zhang Ying Zhang Xiujun Li Yueying Shi Rongjiu Yu Kewei Zhang Xudong. PLANT: A POTENTIAL SOURCE OF THE ATMOSPHERIC N2O[J]. Quaternary Sciences, 2003, 23(5): 504-511 |
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| Authors: | Chen Guanxiong Xu Hui Zhang Ying Zhang Xiujun Li Yueying Shi Rongjiu Yu Kewei Zhang Xudong |
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| Affiliation: | Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016 |
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| Abstract: | N 2O is the third leading greenhouse gas, next to CO 2 and CH 4, in contribution to global warming. Till now, large uncertainties still exist in the global budget of sources and sinks of N 2O, and possible there are certain important sources of N 2O unknown. In this paper, major results obtained by authors and their colleagues over more than 10 years were reported. The results showed that emission of N 2O by plant is a universal phenomenon in nature, and its flux can be comparable with that from soil, hence plant may be an unknown important source of the atmospheric N 2O. N 2O emission by plant is controlled by species and growing stages of plants, nutrient supply, illumination and CO 2 concentration. In this paper, also, the light regulation model of N 2O emission by plant was presented, and the influence of N 2O emission by plant on global, especially on terrestrial ecosystem budget of N 2O was discussed. |
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| Keywords: | plant N 2O emission global budget of sources and sinks of N 2O |
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