Plant traits and soil fertility mediate productivity losses under extreme drought in C-3 grasslands
文献类型：期刊论文
| 作者 | Luo, Wentao; Griffin-Nolan, Robert J.; Ma, Wang; Liu, Bo; Zuo, Xiaoan7; Xu, Chong6; Yu, Qiang6; Luo, Yahuang5; Mariotte, Pierre9; Smith, Melinda D. |
| 刊名 | ECOLOGY
 |
| 出版日期 | 2021 |
| 卷号 | 102期号:10 |
| 关键词 | community-weighted traits drought functional dispersion plant traits productivity soil fertility species richness |
| ISSN号 | 0012-9658 |
| DOI | 10.1002/ecy.3465 |
| 文献子类 | Article |
| 英文摘要 | Extreme drought decreases aboveground net primary production (ANPP) in most grasslands, but the magnitude of ANPP reductions varies especially in C-3-dominated grasslands. Because the mechanisms underlying such differential ecosystem responses to drought are not well resolved, we experimentally imposed an extreme 4-yr drought (2015-2018) in two C-3 grasslands that differed in aridity. These sites had similar annual precipitation and dominant grass species (Leymus chinensis) but different annual temperatures and thus water availability. Drought treatments differentially affected these two semiarid grasslands, with ANPP of the drier site reduced more than at the wetter site. Structural equation modeling revealed that community-weighted means for some traits modified relationships between soil moisture and ANPP, often due to intraspecific variation. Specifically, drought reduced community mean plant height at both sites, resulting in a reduction in ANPP beyond that attributable to reduced soil moisture alone. Higher community mean leaf carbon content enhanced the negative effects of drought on ANPP at the drier site, and ANPP-soil-moisture relationships were influenced by soil C:N ratio at the wetter site. Importantly, neither species richness nor functional dispersion were significantly correlated with ANPP at either site. Overall, as expected, soil moisture was a dominant, direct driver of ANPP response to drought, but differential sensitivity to drought in these two grasslands was also related to soil fertility and plant traits. |
| 学科主题 | Ecology |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1939-9170 |
| WOS关键词 | FUNCTIONAL DIVERSITY ; BIODIVERSITY ; RESPONSES ; SELECTION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000686031300001 |
| 出版者 | WILEY |
| 资助机构 | National Key Research and Development Program of China [2016YFC0500602, 2016YFC0500703] ; National Natural Science Foundation of China [31971465, 41603080, 41320104002] ; Youth Innovation Promotion Association CAS [2020199] ; Drought-Net Research Coordination Network [DEB-1354732] ; Macrosystems Biology/Emerging Frontiers Programs [EF-1137342, EF-1137378, EF-1137363, EF-1137293] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26659]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Agroscope, Grazing Syst, Route Duillier 50, CH-1260 Nyon, Switzerland 3.Smith, Melinda D.; Knapp, Alan K.] Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA 4.Smith, Melinda D.] Colorado State Univ, Grad Degree Program Ecol, Ft Collins, CO 80523 USA 5.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Hulunber Grassland Ecosyst Observat & Res St, Beijing 100081, Peoples R China 6.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou 730000, Peoples R China 7.Griffin-Nolan, Robert J.] Syracuse Univ, Dept Biol, Syracuse, NY 13244 USA 8.Chinese Acad Sci, Inst Appl Ecol, Erguna Forest Steppe Ecotone Res Stn, Shenyang 110016, Peoples R China 9.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China 10.Collins, Scott L.] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA |
| 推荐引用方式 GB/T 7714 | Luo, Wentao,Griffin-Nolan, Robert J.,Ma, Wang,et al. Plant traits and soil fertility mediate productivity losses under extreme drought in C-3 grasslands[J]. ECOLOGY,2021,102(10). |
| APA | Luo, Wentao.,Griffin-Nolan, Robert J..,Ma, Wang.,Liu, Bo.,Zuo, Xiaoan.,...&Han, Xingguo.(2021).Plant traits and soil fertility mediate productivity losses under extreme drought in C-3 grasslands.ECOLOGY,102(10). |
| MLA | Luo, Wentao,et al."Plant traits and soil fertility mediate productivity losses under extreme drought in C-3 grasslands".ECOLOGY 102.10(2021). |
入库方式： OAI收割
来源：植物研究所
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