Biomass Partitioning and Its Relationship with the Environmental Factors at the Alpine Steppe in Northern Tibet
文献类型：期刊论文
| 作者 | Wu, Jianbo1 ; Hong, Jiangtao1,2; Wang, Xiaodan1; Sun, Jian1,2; Lu, Xuyang1; Fan, Jihui1; Cai, Yanjiang1
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| 刊名 | PLOS ONE
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| 出版日期 | 2013-12-12 |
| 卷号 | 8期号:12页码:e81986 |
| 关键词 | allometric allocation above-ground and below-ground biomass precipitation temperature alpine steppe |
| ISSN号 | 1932-6203 |
| 通讯作者 | 王小丹 |
| 英文摘要 | Alpine steppe is considered to be the largest grassland type on the Tibetan Plateau. This grassland contributes to the global carbon cycle and is sensitive to climate changes. The allocation of biomass in an ecosystem affects plant growth and the overall functioning of the ecosystem. However, the mechanism by which plant biomass is allocated on the alpine steppe remains unclear. In this study, biomass allocation and its relationship to environmental factors on the alpine grassland were studied by a meta-analysis of 32 field sites across the alpine steppe of the northern Tibetan Plateau. We found that there is less above-ground biomass (M-A) and below-ground biomass (M-B) in the alpine steppe than there is in alpine meadows and temperate grasslands. By contrast, the root-to-shoot ratio (R:S) in the alpine steppe is higher than it is in alpine meadows and temperate grasslands. Although temperature maintained the biomass in the alpine steppe, precipitation was found to considerably influence M-A, M-B, and R:S, as shown by ordination space partitioning. After standardized major axis (SMA) analysis, we found that allocation of biomass on the alpine steppe is supported by the allometric biomass partitioning hypothesis rather than the isometric allocation hypothesis. Based on these results, we believe that M-A and M-B will decrease as a result of the increased aridity expected to occur in the future, which will reduce the landscape's capacity for carbon storage. |
| WOS标题词 | Science & Technology |
| 学科主题 | 生态学 |
| 类目[WOS] | Multidisciplinary Sciences |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 关键词[WOS] | BELOW-GROUND BIOMASS ; CARBON ALLOCATION ; ABOVEGROUND BIOMASS ; NUTRIENT AVAILABILITY ; SPECIES COMPOSITION ; GLOBAL PATTERNS ; SOIL PROPERTIES ; INNER-MONGOLIA ; PLANT BIOMASS ; GRASSLANDS |
| 收录类别 | SCI |
| 原文出处 | http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0081986;jsessionid=50CF00776B1110168B34F6D1D7891628 |
| 语种 | 英语 |
| WOS记录号 | WOS:000328731800031 |
| 公开日期 | 2013-12-16 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/6601]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazard & Environm, Key Lab Mt Environm Evolut & Its Regulat, Chengdu, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Jianbo,Hong, Jiangtao,Wang, Xiaodan,et al. Biomass Partitioning and Its Relationship with the Environmental Factors at the Alpine Steppe in Northern Tibet[J]. PLOS ONE,2013,8(12):e81986. |
| APA | Wu, Jianbo.,Hong, Jiangtao.,Wang, Xiaodan.,Sun, Jian.,Lu, Xuyang.,...&Cai, Yanjiang.(2013).Biomass Partitioning and Its Relationship with the Environmental Factors at the Alpine Steppe in Northern Tibet.PLOS ONE,8(12),e81986. |
| MLA | Wu, Jianbo,et al."Biomass Partitioning and Its Relationship with the Environmental Factors at the Alpine Steppe in Northern Tibet".PLOS ONE 8.12(2013):e81986. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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