Patterns of Leymus chinensis in response to grazing exclusion across two steppe habitats in Inner Mongolia: implications for phenotypic plasticity
文献类型： 外文期刊
作者： Shi, G. 1 ; Liu, Z. Y. 1 ; Baoyin, T. 1 ; Sun, J. 2 ; Duan, J. J. 3 ; Li, X. L. 3 ; Yang, G. F. 4 ;
作者机构： 1.Inner Mongolia Univ, Coll Ecol & Environm, Key Lab Grassland Ecol, Hohhot 010021, Peoples R China
2.Qingdao Agr Univ, Coll Sch Anim Sci & Technol, Qingdao 266109, Peoples R China
3.Chinese Acad Agr Sci, Inst Grassland Res, Natl Forage Improvement Ctr, Key Lab Grassland Ecol & Restorat,Minist Agr, Hohhot 010010, Peoples R China
4.Qingdao Agr Univ, Grassland Agri Husb Res Ctr, Qingdao 266109, Peoples R China
关键词： Functional traits; Grazing exclusion; Inner Mongolia; Rangeland; Climate
期刊名称：PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY （ 影响因子：1.039； 五年影响因子：0.77 ）
ISSN： 1851-5657
年卷期： 2018 年 87 卷
页码：
收录情况： SCI
摘要： Plant functional traits and their effects on rangeland ecosystem function have received much attention by ecologists. However, the importance of functional traits and the interactive effects of grazing exclusion and climate are poorly understood. This study, therefore, aimed to analyse the response of Leymus chinensis functional traits in long-term grazing exclusion in different habitats (rainless typical steppe and rainy meadow steppe). This study showed that although the sensitivity and variability of different traits were similar in two steppe habitats, phenotypic plasticity of L. chinensis in meadow steppe was significantly higher than typical steppes. With the increased degree of plasticity, the variability significantly increased and could be fitted by an equation of exponential rise to maximum, and this relationship was unaltered by climate. Additionally, we illustrated that different climate conditions do not alter the patterns of phenotypic plasticity of L. chinensis affected by grazing exclusion.
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