Three-dimensional soil heterogeneity modulates responses of grassland mesocosms to an experimentally imposed drought extreme
文献类型：期刊论文
| 作者 | Liu, Yongjie; Bortier, Michiel F.; Nijs, Ivan3; Fu, Yongshuo4; Li, Zhenqing1,5; Hou, Fujiang; De Boeck, Hans J. |
| 刊名 | OIKOS
 |
| 出版日期 | 2021 |
| 卷号 | 130期号:7页码:1209-1223 |
| 关键词 | canopy browning canopy greenness canopy temperature recovery soil heterogeneity soil water content |
| ISSN号 | 0030-1299 |
| DOI | 10.1111/oik.07810 |
| 文献子类 | Article |
| 英文摘要 | Heterogeneity is an intrinsic characteristic of soils, which regulates plant diversity and ecosystem functioning. However, whether soil heterogeneity also modulates responses of plant communities to climate change, including climate extremes, remains largely an open question. Here, we explore responses of plant communities to drought extremes across four levels of spatial soil heterogeneity, with cell sizes varying from very small to very large, i.e. 0, 12, 24 and 48 cm. These were created in mesocosms by alternating nutrient-rich and nutrient-poor substrate in three dimensions. A seed mixture of 24 grassland species was evenly sown on each mesocosm in spring. In late summer, a three-week drought was imposed with a rainout shelter. During the drought, soil water content at the mesocosm scale decreased more at intermediate (12 and 24 cm) than at small or large (0 and 48 cm) cell sizes, which was reflected in increased senescence and drought-induced heat stress. These responses could be traced to greater plant biomass coupled with higher water demand at those intermediate cell sizes, likely related to between-cell access to nutrients and effects of diversity and community composition. Our results indicate that soil heterogeneity can modulate the impact of drought extremes on plant communities, though more research is needed on the transition between intermediate and extreme cell sizes, where heterogeneity effects seem to change most. We propose that soil heterogeneity be considered more explicitly in studies of changing precipitation regimes. |
| 学科主题 | Ecology |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1600-0706 |
| WOS关键词 | SPECIES RICHNESS ; ENVIRONMENTAL HETEROGENEITY ; ECOSYSTEM PRODUCTIVITY ; SPATIAL HETEROGENEITY ; CLIMATE-CHANGE ; BIODIVERSITY ; RESISTANCE ; VEGETATION ; DIVERSITY ; PATTERN |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000649376600001 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China [41571505] ; 111 Project [B18006] ; Research Foundation - Flanders (FWO) [G.0490.16 N] ; National Key Research and Development Program of China [2019YFC0507704] ; Lanzhou University [508000-561119213] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26323]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Beijing Normal Univ, Coll Water Sci, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Lanzhou Univ, Key Lab Grassland Livestock Ind Innovat, State Key Lab Grassland Agroecosyst, Minist Agr & Rural Affairs,Coll Pastoral Agr Sci, Lanzhou, Peoples R China 4.Univ Antwerp, Dept Biol, Plants & Ecosyst, Antwerp, Belgium 5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yongjie,Bortier, Michiel F.,Nijs, Ivan,et al. Three-dimensional soil heterogeneity modulates responses of grassland mesocosms to an experimentally imposed drought extreme[J]. OIKOS,2021,130(7):1209-1223. |
| APA | Liu, Yongjie.,Bortier, Michiel F..,Nijs, Ivan.,Fu, Yongshuo.,Li, Zhenqing.,...&De Boeck, Hans J..(2021).Three-dimensional soil heterogeneity modulates responses of grassland mesocosms to an experimentally imposed drought extreme.OIKOS,130(7),1209-1223. |
| MLA | Liu, Yongjie,et al."Three-dimensional soil heterogeneity modulates responses of grassland mesocosms to an experimentally imposed drought extreme".OIKOS 130.7(2021):1209-1223. |
入库方式： OAI收割
来源：植物研究所
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