Erratic precipitation and clipping frequency reshape the community structure and species stability of Leymus chinensis steppe
文献类型： 外文期刊
作者： He, Feng 1 ; Tong, Zongyong 1 ; Hannaway, David B. 2 ; Li, Xianglin 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Anim Sci, Beijing 100193, Peoples R China
2.Oregon State Univ, Dept Crop & Soil Sci, Corvallis, OR 97331 USA
关键词： Soil volumetric water content; Soil temperature; Clipping intensity; Net primary productivity; Importance value; Temporal stability
期刊名称：ECOLOGICAL INDICATORS （ 影响因子：6.263； 五年影响因子：6.643 ）
ISSN： 1470-160X
年卷期： 2021 年 133 卷
页码：
收录情况： SCI
摘要： Leymus chinensis steppe is subject to degradation under the combined stresses of climate change and human disturbance. This study aimed to determine the independent and compound effects of precipitation and clipping frequency on the community structure and species temporal stability of L. chinensis steppe. Six treatments were applied in a 9-year field study, comprising three precipitation regimes (precipitation reduced by 50%, R1; unchanged from ambient precipitation, R2; and increased by 50%, R3) and two clipping frequencies (clipping once or twice per year, C1 and C2). We evaluated the soil hydrothermal status, dry matter, importance value and temporal stability of five important species (L. chinensis, Artemisia eriopoda, Cleistogenes squarrosa, Potentilla tanacetifolia, and Stipa krylovii) in the L. chinensis community. The results showed: Change in the soil volumetric water content (+/- 2.4%) altered the competitive capability of L. chinensis relative to its associated species. Drought was beneficial to S. krylovii, wet status was favorable to C. squarrosa and P. tanacetifolia, whereas drought and a wet regime both reduced the importance value and temporal stability of L. chinensis. Erratic precipitation, rather than clipping frequency, decreased the temporal stability of L. chinensis. Net primary productivity and dry matter of L. chinensis were strongly correlated under drought or wet regimes. Restoration of the key species L. chinensis and controlling grazing intensity in severe drought or wet conditions are recommended strategies for sustainable management of L. chinensis steppe.
- 相关文献
作者其他论文 更多>>
-
Ubiquitination of OsCSN5 by OsPUB45 activates immunity by modulating the OsCUL3a-OsNPR1 module
作者：Zhang, Chongyang;Fang, Liang;He, Feng;You, Xiaoman;Wang, Min;Zhao, Tianxiao;Hou, Yanyan;Wang, Ruyi;Ning, Yuese;Zhang, Chongyang;Ruan, Jue;Fang, Liang;Francis, Frederic;Xiao, Ning;Li, Aihong;Yang, Jian;Wang, Guo-Liang
关键词：
-
Dynamics of Productivity and Nitrogen Contribution in Mixed Legume/Grass Grasslands in Rain-fed Semi-arid Areas in Northwest China
作者：Xie, Kaiyun;Yan, An;Wan, Jiangchun;Xie, Kaiyun;Yan, An;Wan, Jiangchun;Xie, Kaiyun;Meng, Xiang;Yan, An;Wan, Jiangchun;He, Feng
关键词：mixed grassland; productivity; biological nitrogen fixation; nitrogen transfer; semi-arid rain-fed areas
-
Development of elite rice with broad-spectrum resistance through pyramiding of key resistance gene and simultaneously editing multiple susceptibility genes
作者：Tao, Hui;Wang, Ruyi;He, Feng;Jiang, Su;Wang, Min;Chen, Huamin;You, Xiaoman;Ning, Yuese;Xiao, Ning;Cai, Yue;Li, Aihong;Jiang, Su;Wang, Dan;Wang, Guo-Liang
关键词：
-
Rice false smut virulence protein subverts host chitin perception and signaling at lemma and palea for floral infection
作者：Li, Guo-Bang;Liu, Jie;He, Jia-Xue;Li, Gao-Meng;Zhao, Ya-Dan;Liu, Xiao-Ling;Hu, Xiao-Hong;Zhang, Xin;Wu, Jin-Long;Shen, Shuai;Liu, Xin-Xian;Zhu, Yong;Wang, He;Zhao, Jing-Hao;Li, Yan;Huang, Fu;Huang, Yan-Yan;Zhao, Zhi-Xue;Zhang, Ji-Wei;Zhou, Shi-Xin;Ji, Yun-Peng;Pu, Mei;He, Min;Chen, Xuewei;Wang, Jing;Wang, Wen-Ming;Fan, Jing;Li, Guo-Bang;Li, Weitao;Wu, Xian-Jun;Xu, Zheng-Jun;Hu, Xiao-Hong;He, Feng;Ning, Yuese;Gao, Han;Sun, Wenxian;Gao, Han;Sun, Wenxian;Fan, Jing
关键词：
-
Analysis of rotational grazing management for sheep in mixed grassland
作者：Tong, Zongyong;Dai, Xianlin;Wang, Yu;Li, Xianglin;He, Feng;Yin, Guomei
关键词：Mixed grassland; Rotational grazing; Sheep; Grazing managment; Fatty acids
-
The rice E3 ubiquitin ligase-transcription factor module targets two trypsin inhibitors to enhance broad-spectrum disease resistance
作者：Zhang, Chongyang;Fang, Hong;Wang, Jisong;Tao, Hui;Wang, Debao;Qin, Mengchao;He, Feng;Wang, Ruyi;Ning, Yuese;Wang, Guo-Liang
关键词：
-
A novel HCR-CRISPR/Cas12a immunosensor for the sensitive detection of pesticide residues in animal-derived foods
作者：Wang, Yuanshang;Du, Pengfei;Wang, Weiting;Liu, Yaobo;Wang, Shoujing;Cao, Jianfang;Ma, Yanli;Wang, Yuanshang;Wang, Xiaohong;Wang, Jia;Lu, Youyou;Wang, Yuanshang;Wang, Xiaohong;Wang, Jia;Lu, Youyou;He, Feng;Wang, Haijie;Wang, Haijie;Abd El-Aty, A. M.;Abd El-Aty, A. M.
关键词：Hybridization chain reaction; CRISPR/Cas12a; Immunosensor; Pesticide residue; Animal-derived food; Gold nanoparticles
