Effects of nitrogen addition on vegetation and ecosystem carbon in a semi-arid grassland
文献类型：期刊论文
| 作者 | Zeng, De-Hui1; Li, Lu-Jun1,2; Fahey, Timothy J.3; Yu, Zhan-Yuan1; Fan, Zhi-Ping1; Chen, Fu-Sheng4 |
| 刊名 | Biogeochemistry
 |
| 出版日期 | 2010-04-01 |
| 卷号 | 98期号:1-3页码:185-193 |
| ISSN号 | 0168-2563 |
| 关键词 | Carbon partitioning Carbon pool Keerqin sandy lands Nitrogen limitation Sandy grassland Species composition |
| DOI | 10.1007/s10533-009-9385-x |
| 通讯作者 | Zeng, de-hui(zengdh@iae.ac.cn) |
| 英文摘要 | To clarify responses of plant and soil carbon (c) and nitrogen (n) pools in grassland ecosystem to n addition, a field experiment was performed in a grassland in keerqin sandy lands, northeast china. we investigated vegetation composition and c and n pools of plant and soil (0-30 cm) after five consecutive years of n addition at a rate of 20 g n m(-2) y(-1). vegetation composition and species diversity responded dramatically to n addition, as dominance by c(4) perennials was replaced with c(3) annuals. carbon in aboveground pool increased significantly (over two-fold), mainly due to the increase of the c in aboveground living plants and surface litter, which increased by 98 and 134%, respectively. although soil c did not change significantly, the root c pool decreased in response to 5 years of n addition. the total ecosystem c pool was not significantly impacted by n addition because the large soil pool did not respond to n addition, and the increase in aboveground c was offset by the decrease in root c pool. moreover, n addition significantly increased the aboveground n pool, but had no significant effects on belowground and total ecosystem n pools. our results suggest that in the mid-term n addition alters the c and n partitioning in above- and belowground pools, but has no significant effects on total ecosystem c and n pools in these n-limited grasslands. |
| WOS关键词 | SOIL CARBON ; BIOLOGICAL-PROPERTIES ; PRIMARY PRODUCTIVITY ; SPECIES RICHNESS ; PLANT DIVERSITY ; ORGANIC-MATTER ; UNITED-STATES ; ELEVATED CO2 ; CHINA ; DEPOSITION |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000276605000014 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2410926 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zeng, De-Hui |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Daqinggou Ecol Stn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Cornell Univ, Dept Nat Resources, Ithaca, NY 14853 USA 4.Nanchang Univ, Coll Life Sci, Nanchang 330031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, De-Hui,Li, Lu-Jun,Fahey, Timothy J.,et al. Effects of nitrogen addition on vegetation and ecosystem carbon in a semi-arid grassland[J]. Biogeochemistry,2010,98(1-3):185-193. |
| APA | Zeng, De-Hui,Li, Lu-Jun,Fahey, Timothy J.,Yu, Zhan-Yuan,Fan, Zhi-Ping,&Chen, Fu-Sheng.(2010).Effects of nitrogen addition on vegetation and ecosystem carbon in a semi-arid grassland.Biogeochemistry,98(1-3),185-193. |
| MLA | Zeng, De-Hui,et al."Effects of nitrogen addition on vegetation and ecosystem carbon in a semi-arid grassland".Biogeochemistry 98.1-3(2010):185-193. |
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来源：中国科学院大学
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