Knowledge Management System Of Institute Of Botany,CAS
| Asymmetric effects of litter accumulation on soil temperature and dominant plant species in fenced grasslands | |
Hou, Dongjie1; Liu, Changcheng; Qiao, Xianguo1; Guo, Ke1
| |
| 2020 | |
| 发表期刊 | ECOSPHERE
 |
| ISSN | 2150-8925 |
| 卷号 | 11期号:11 |
| 摘要 | Excess litter accumulates on the soil surface of fenced grasslands and alters the abiotic environment and plant population dynamics. However, little is known about the effect of litter accumulation on the interaction between environmental factors and plant population characteristics in fenced grasslands, especially over different time scales. We applied a three-year litter removal experiment to two kinds of fenced grasslands in Inner Mongolia, China. We measured soil temperature in situ and plant phenology and population characteristics of three dominant species (Stipa grandis, S. krylovii, and Leymus chinensis). During the growing season, litter accumulation (i.e., the control) significantly decreased soil temperature, with a larger effect in the daytime than at night. The diurnal negative effect gradually weakened across the growing season, whereas the negative effect in the nighttime shifted to a positive effect on soil temperature in the late growing season. The decreased soil temperature delayed plant phenology, with longer delays in S. grandis and S. krylovii than L. chinensis. Litter accumulation also significantly increased the height, cover, root biomass, and relative dominance of L. chinensis but decreased cover, density, root biomass, and relative dominance of both Stipa, driving replacement of S. grandis or S. krylovii by L. chinensis in two grasslands. Our findings emphasize the critical function of litter in grassland management and provide a new insight to elucidating the mechanism of how litter accumulation regulates the abiotic environment, community composition and structure, and successional change in fenced grasslands. |
| 关键词 | abiotic environment asymmetric effect Inner Mongolia plant phenology population characteristics temperate grasslands |
| 学科领域 | Ecology |
| DOI | 10.1002/ecs2.3289 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | 4 FAMILIAL PAIRS ; GRAZING EXCLUSION ; COMMUNITY COMPOSITION ; PHENOLOGY ; RESPONSES ; ESTABLISHMENT ; ECOSYSTEMS ; STEPPE |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000598784300002 |
| 出版者 | WILEY |
| 文献子类 | Article |
| 出版地 | HOBOKEN |
| 资助机构 | National Basic Research Program of ChinaNational Basic Research Program of China [2014CB138802] |
| 作者邮箱 | greatwall01@ibcas.ac.cn |
| 作品OA属性 | gold |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/21494 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou, Dongjie,Liu, Changcheng,Qiao, Xianguo,et al. Asymmetric effects of litter accumulation on soil temperature and dominant plant species in fenced grasslands[J]. ECOSPHERE,2020,11(11). |
| APA | Hou, Dongjie,Liu, Changcheng,Qiao, Xianguo,&Guo, Ke.(2020).Asymmetric effects of litter accumulation on soil temperature and dominant plant species in fenced grasslands.ECOSPHERE,11(11). |
| MLA | Hou, Dongjie,et al."Asymmetric effects of litter accumulation on soil temperature and dominant plant species in fenced grasslands".ECOSPHERE 11.11(2020). |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Hou-2020-Asymmetric （1739KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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