文献类型： 外文期刊

作者： Wang, Chao ¹ ; Li, Xiaona ¹ ; Suonan, Ji ² ; Wang, Yonghui ³ ; Yu, Lingfei ⁵ ; Penuelas, Josep ⁶ ; Sardans, Jordi ⁶ ; Hou, Yanhui ¹ ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Grassland Flowers & Ecol, Beijing, Peoples R China

2.Qinghai Normal Univ, Coll Life Sci, Xining, Peoples R China

3.Inner Mongolia Univ, Sch Ecol & Environm, Key Lab Ecol & Resource Use Mongolian Plateau, Minist Educ, Hohhot, Peoples R China

4.Inner Mongolia Univ, Sch Ecol & Environm, Inner Mongolia Key Lab Grassland Ecol, Hohhot, Peoples R China

5.Hebei Univ, Sch Life Sci, Baoding, Hebei, Peoples R China

6.Global Ecol Unit CREAF, CSIC, CEAB, UAB, Bellaterra, Spain

7.CREAF, Cerdanyola Del Valles, Spain

关键词： above- and below-ground; continental scale; ecosystem functions; elemental concentrations; Elementome; grassland; Hypervolume

期刊名称：JOURNAL OF ECOLOGY （ 影响因子：5.6； 五年影响因子：6.5 ）

ISSN： 0022-0477

年卷期： 2025 年

页码：

收录情况： SCI

摘要： The biogeochemical niche (BN) hypothesis posits that each species performs species-specific functions linked to its unique elemental composition. However, the relationship between BN and plant functions-such as biomass-remains to be fully understood. In our study, we assessed the shoot and root biomass, as well as the concentrations of 10 elements in the leaves and roots of 368 individuals from 18 species within the Potentillinae across northern grasslands in China. We tested the BN hypothesis for both leaves and roots and investigated the relationships between the BN and biomass in the above- and below-ground in these grasslands. Our analysis revealed that legacy (phylogenetic + species) effects explained a significant proportion of the variation in leaf and root elemental composition among species within a narrower taxonomic range, and leaf elemental composition exhibited higher phylogenetic conservatism compared to roots. Moreover, we also identified a strong connection between species B and N that estimated by leaves and roots, along with positive associations between them and the shoot and root biomass. Synthesis. Our results underscore the strong connections between the BN size and plant biomass above- and below-ground. We suggest that the BN could serve as a valuable framework for linking elemental composition to ecosystem functions in grasslands. (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(BN)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic),BN(sic)(sic)(sic)(sic)(sic)((sic)(sic)(sic)(sic))(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)18(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)368(sic)(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)/(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)10(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)BN(sic)(sic),(sic)(sic)(sic)BN(sic)(sic)(sic)(sic)(sic)/(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)((sic)(sic)(sic)(sic)+(sic)(sic))(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)BN(sic)(sic)(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic)/(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)BN(sic)(sic)(sic)(sic)(sic)(sic)(sic)/(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic),(sic)(sic)BN(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).