Grassland bud and shoot demographic responses to single and recurrent droughts vary across an aridity gradient
文献类型: 外文期刊
作者: Te, Niwu;Griffin-Nolan, Robert J.;Slette, Ingrid J.;Shi, Yuan;Song, Lin;Chen, Jiaqi;Wang, Hongqiang;Qian, Jianqiang;Yu, Qiang;Wang, Zhengwen;Lu, Xiaotao;Han, Xingguo;Klimesova, Jitka;Collins, Scott L.;Luo, Wentao
作者机构:
关键词: bud limitation;climate change;drought frequency;population regeneration;productivity;shoot density
期刊名称: ECOLOGY
ISSN: 0012-9658
年卷期: 2025 年 106 卷 2 期
页码:
收录情况: SCIE(2025版)
摘要: Clonal demographic traits play important roles in regulating community dynamics. Yet, it remains unclear how the responses of these clonal traits to drought might depend on previous drought exposure, and how drought responses vary among grasslands. We conducted a repeated drought experiment across four grasslands along an aridity gradient in northern China. We assessed the effects of single (precipitation reduction in 2021-2022) versus recurrent (precipitation reduction in 2015-2018 and 2021-2022) drought on bud density, shoot density, and the ratio of bud to shoot density. Drought reduced bud density at all grasslands and shoot density at most grasslands. Drought reduced the ratio of bud-to-shoot density only in the most arid grasslands. Recurrent drought had larger negative effects than a single drought on bud density and composition of bud and shoot at only one of four grasslands, and on shoot density at two of four grasslands. Our results suggest that previous drought exposure can alter the response of plant clonal demographic traits to subsequent drought in some but not all grasslands, and that responses can vary with mean climate.
分类号:
- 相关文献
作者其他论文 更多>>
-
Beyond Plant Diversity: Plant Productivity Responses to Extreme Drought Are Linked to Arbuscular Mycorrhizal Fungal Diversity
作者:Fu, Wei;Yu, Qiang;Zhang, Haiyang;Xu, Chong;Han, Xingguo;Chen, Baodong
关键词:arbuscular mycorrhizal fungi;biodiversity effects;climate change;climate extremes;plant-soil feedback;soil biodiversity
-
Contrasting drought sensitivity of Eurasian and North American grasslands
作者:Yu, Qiang;Xu, Chong;Wu, Honghui;Ke, Yuguang;Zuo, Xiaoan;Luo, Wentao;Ren, Haiyan;Gu, Qian;Wang, Hongqiang;Ma, Wang;Knapp, Alan K.;Collins, Scott L.;Rudgers, Jennifer A.;Luo, Yiqi;Hautier, Yann;Wang, Chengjie;Wang, Zhengwen;Jiang, Yong;Han, Guodong;Gao, Yingzhi;He, Nianpeng;Zhu, Juntao;Dong, Shikui;Xin, Xiaoping;Yu, Guirui;Smith, Melinda D.;Li, Linghao;Han, Xingguo
关键词:无
-
Extreme Wetness Reduces Soil Microbial Residue Carbon More Substantially Than Extreme Drought Across Grassland Ecosystems
作者:Yu, Yingchao;Liu, Shuang;Pan, Junxiao;Zhu, Juntao;Zong, Ning;Zhang, Xinyuan;Wu, Honghui;An, Hui;Diao, Huajie;Zuo, Xiaoan;Wei, Cunzheng;Zhang, Fawei;Yu, Qiang;Zhang, Xinyu
关键词:amino sugar;aridity index;China global change network;enzyme activity;increased precipitation;nitrogen;reduced precipitation
-
Resin-coated urea effectively simulates the chronic dynamics of natural nitrogen deposition
作者:Zhao, Yi;Ke, Yuguang;Wu, Honghui;Xu, Chong;Li, Xiwen;Hautier, Yann;Borer, Elizabeth T.;Yu, Qiang
关键词:biodiversity;coated fertilizer;ecosystem function;ecosystem processes;global change;N deposition;nitrogen addition;simulating experiment
-
Ecosystem stability declines consistently with nitrogen addition across a gradient of organic to inorganic nitrogen ratios
作者:Ke, Yuguang;Wang, Hongqiang;Zhang, Yushu;Chen, Jiale;Shi, Yalong;Yang, Yadong;Yu, Qiang;Li, Xiwen;Li, Ang;Wu, Jianguo;Wu, Honghui
关键词:dominant species;grassland;nitrogen deposition;nitrogen composition;population stability;species asynchrony
-
Spatial preemption-based mechanisms explain aboveground biomass of Potentilla bifurca in response to nitrogen addition in a temperate grassland community
作者:Yang, Liuyi;Shi, Huiqiu;Zhang, Lulu;Li, Yuting;Gao, Liang;Yu, Qiang;Shao, Changliang;Wu, Honghui;Zhang, Wen-Hao
关键词:Canopy structure;Forb species;Nitrogen enrichment;Reproductive traits;Seed traits;Temperate steppe;Tissue chemical composition
-
Short-term effects of tillage disturbance and nutrient enrichment on above-ground plant communities and below-ground microorganisms in a Hulunber grassland
作者:Zhang, Yushu;Gu, Qian;Yu, Qiang;Ke, Yuguang;O. Muraina, Taofeek;Chen, Xin;Cao, Jixin;Xiao, Chunwang;Wu, Honghui
关键词:tillage disturbance;nutrient enrichment;plant communities;microbial communities;carbon mineralization