Knowledge Management System of Northwest Institute of Plateau Biology, CAS
| Field-based observations of regional-scale, temporal variation in net primary production in Tibetan alpine grasslands | |
| Shi, Y.1,2; Wang, Y.1,2; Ma, Y.1,2; Ma, W.4; Liang, C.4; Flynn, D. F. B.3,5; Schmid, B.5; Fang, J.1,2; He, J. -S.1,2,3 | |
| 2014 | |
| 发表期刊 | BIOGEOSCIENCES
 |
| ISSN | 1726-4170 |
| 卷号 | 11期号:7页码:2003-2016 |
| 文章类型 | Article |
| 摘要 | Net primary production (NPP) is a fundamental process of natural ecosystems. Temporal variation of NPP not only reflects how communities respond to environmental fluctuations, but it also has important implications for regional carbon assessment. Unfortunately, studies based on field measurements to directly address this issue in the extreme environment of alpine grasslands are rare. In this study, we measured aboveground NPP (ANPP) and species richness in 40 sites across the Tibetan alpine grasslands from 2006 to 2009 to investigate the regional pattern of temporal variation in ANPP and to quantify the effects of climate fluctuation and biodiversity on this variation. The results showed that, during the 4-year period, the average ANPP varied 1.5-fold, from 83.9 to 125.7 gm(-2), with a mean coefficient of variation of temporal variation of 36.6% across the 40 sites. Compared with other studies, alpine grasslands are not more sensitive to climate fluctuations than other grassland types. Aboveground NPP exhibited synchronous temporal variation and consistent spatial patterns over the 4-year period due to the regionally similar climatic fluctuations caused by monsoon-dominated plateau climate. Surprisingly, rainfall fluctuation had a more profound effect on the ANPP dynamics than temperature variation, which suggests that production in the Tibetan alpine grasslands is primarily driven by precipitation. Therefore, ANPP in the Tibetan alpine grasslands are mainly constrained by water availability. Finally, we found a reduction in interannual variation (i.e., CV) in ANPP with increasing species richness of plant communities, suggesting that diversity can stabilize community production in high-altitude grasslands.; Net primary production (NPP) is a fundamental process of natural ecosystems. Temporal variation of NPP not only reflects how communities respond to environmental fluctuations, but it also has important implications for regional carbon assessment. Unfortunately, studies based on field measurements to directly address this issue in the extreme environment of alpine grasslands are rare. In this study, we measured aboveground NPP (ANPP) and species richness in 40 sites across the Tibetan alpine grasslands from 2006 to 2009 to investigate the regional pattern of temporal variation in ANPP and to quantify the effects of climate fluctuation and biodiversity on this variation. The results showed that, during the 4-year period, the average ANPP varied 1.5-fold, from 83.9 to 125.7 gm(-2), with a mean coefficient of variation of temporal variation of 36.6% across the 40 sites. Compared with other studies, alpine grasslands are not more sensitive to climate fluctuations than other grassland types. Aboveground NPP exhibited synchronous temporal variation and consistent spatial patterns over the 4-year period due to the regionally similar climatic fluctuations caused by monsoon-dominated plateau climate. Surprisingly, rainfall fluctuation had a more profound effect on the ANPP dynamics than temperature variation, which suggests that production in the Tibetan alpine grasslands is primarily driven by precipitation. Therefore, ANPP in the Tibetan alpine grasslands are mainly constrained by water availability. Finally, we found a reduction in interannual variation (i.e., CV) in ANPP with increasing species richness of plant communities, suggesting that diversity can stabilize community production in high-altitude grasslands. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 关键词[WOS] | CLIMATE-CHANGE ; ELEVATED CO2 ; INTERANNUAL VARIABILITY ; ABOVEGROUND BIOMASS ; SPECIES-DIVERSITY ; RAINFALL VARIABILITY ; ECOSYSTEM STABILITY ; COMMUNITY RESPONSES ; PLANT-COMMUNITIES ; MESIC GRASSLAND |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology |
| WOS类目 | Ecology ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000334609000021 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.75.249.4/handle/363003/4280 |
| 专题 | 中国科学院西北高原生物研究所 |
| 作者单位 | 1.Peking Univ, Coll Urban & Environm Sci, Dept Ecol, Beijing 100871, Peoples R China 2.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China 4.Inner Mongolia Univ, Coll Life Sci, Dept Ecol Sci, Hohhot 010021, Peoples R China 5.Univ Zurich, Inst Evolutionary Biol & Environm Studies, CH-8057 Zurich, Switzerland |
| 推荐引用方式 GB/T 7714 | Shi, Y.,Wang, Y.,Ma, Y.,et al. Field-based observations of regional-scale, temporal variation in net primary production in Tibetan alpine grasslands[J]. BIOGEOSCIENCES,2014,11(7):2003-2016. |
| APA | Shi, Y..,Wang, Y..,Ma, Y..,Ma, W..,Liang, C..,...&He, J. -S..(2014).Field-based observations of regional-scale, temporal variation in net primary production in Tibetan alpine grasslands.BIOGEOSCIENCES,11(7),2003-2016. |
| MLA | Shi, Y.,et al."Field-based observations of regional-scale, temporal variation in net primary production in Tibetan alpine grasslands".BIOGEOSCIENCES 11.7(2014):2003-2016. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Field-based observat（1668KB） | 开放获取 | CC BY-NC-SA | 浏览 下载 | |||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 查看访问统计 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| [Shi, Y.]的文章 |
| [Wang, Y.]的文章 |
| [Ma, Y.]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Shi, Y.]的文章 |
| [Wang, Y.]的文章 |
| [Ma, Y.]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Shi, Y.]的文章 |
| [Wang, Y.]的文章 |
| [Ma, Y.]的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论