Effects of land use and nitrogen fertilizer on ecosystem respiration in alpine meadow on the Tibetan Plateau
文献类型：期刊论文
| 作者 | Luo, CY (Luo, Caiyun)3; Wang, SP (Wang, Shiping)1,2; Zhao, L (Zhao, Liang)3; Xu, SX (Xu, Shixiao)3; Xu, BRBY (Xu, Burenbayin)3; Zhang, ZH (Zhang, Zhenhua)3; Yao, BQ (Yao, Buqing)3; Zhao, XQ (Zhao, Xinquan)3; Wang, SP |
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
 |
| 出版日期 | 2017 |
| 卷号 | 17期号:6页码:1626-1634 |
| 关键词 | SOIL CO2 EFFLUX CLIMATE-CHANGE SUBTROPICAL CHINA TERRESTRIAL ECOSYSTEMS CARBON SEQUESTRATION GURBANTUNGGUT DESERT NORTHWESTERN CHINA LIMITATION AVAILABILITY DEPOSITION |
| DOI | 10.1007/s11368-016-1612-1 |
| 文献子类 | Article |
| 英文摘要 | There is still great uncertainty about the response of global carbon dynamics to land use change and nitrogen (N) fertilizer, especially how to balance between forage production and CO2 emission under land use change and N fertilizer times in alpine meadows. This objective of this study was to determine the effects of three land uses (i.e., abandoned cropland/pastureland (APL), perennial Elymus nutans (PEN), and annual Avena sativa L. pasture (AO)) and nitrogen fertilizer applied three times a year with the same N dose on aboveground net primary productivity (ANPP) and ecosystem respiration (Re) from 2011 to 2013. We found that AO had the highest average ANPP and lowest average Re compared with APL and PEN and that there were no significant differences for them between APL and PEN during the experimental period. Nitrogen fertilization did not significantly affect ANPP, root biomass, and seasonal mean Re. Soil temperature could explain about 21.1 and 13-15% of the variation in daily Re for APL and PEN, respectively, but 20.7 and 15.0% of the variation in daily Re for APL and PEN under both with and without N fertilization, respectively. ANPP explained about 49.4% of the variation in seasonal average Re for AO, and the ratio of root biomass and ANPP explained about 45% of the variation in seasonal average Re for AO-N treatment during 2011-2013. Land use significantly affected ANPP, root biomass, and seasonal mean Re. However, nitrogen addition with different times did not significantly affect seasonal average Re or ANPP and root biomass for all treatments during the experimental period. Therefore, our results suggested that N could not be a limiting factor for plant production in this alpine region. |
| 学科主题 | 普通生物学 |
| WOS研究方向 | Environmental Sciences & Ecology; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000401436200010 |
| 源URL | [http://ir.itpcas.ac.cn/handle/131C11/8233]  |
| 专题 | 青藏高原研究所_图书馆 |
| 通讯作者 | Wang, SP |
| 作者单位 | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China. 2.Chinese Acad Sci, Excellence Ctr, Beijing 100101, Peoples R China. 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Luo, CY ,Wang, SP ,Zhao, L ,et al. Effects of land use and nitrogen fertilizer on ecosystem respiration in alpine meadow on the Tibetan Plateau[J]. JOURNAL OF SOILS AND SEDIMENTS,2017,17(6):1626-1634. |
| APA | Luo, CY .,Wang, SP .,Zhao, L .,Xu, SX .,Xu, BRBY .,...&Wang, SP.(2017).Effects of land use and nitrogen fertilizer on ecosystem respiration in alpine meadow on the Tibetan Plateau.JOURNAL OF SOILS AND SEDIMENTS,17(6),1626-1634. |
| MLA | Luo, CY ,et al."Effects of land use and nitrogen fertilizer on ecosystem respiration in alpine meadow on the Tibetan Plateau".JOURNAL OF SOILS AND SEDIMENTS 17.6(2017):1626-1634. |
入库方式： OAI收割
来源：青藏高原研究所
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