Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.12956 |
Calcium plus magnesium indicates digestibility: the significance of the second major axis of plant chemical variation for ecological processes | |
Mladkova, Pavla1; Mladek, Jan2; Hejduk, Stanislav3; Hejcman, Michal1; Pakeman, Robin J.4 | |
2018-06-01 | |
发表期刊 | ECOLOGY LETTERS |
ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2018 |
卷号 | 21期号:6页码:885-895 |
文章类型 | Article |
语种 | 英语 |
国家 | Czech Republic; Scotland |
英文摘要 | Plant variation in nutrient concentrations encompasses two major axes. The first is connected to nitrogen (N) and phosphorus (P), reflects growth rate and has been designated as the leaf economics spectrum (LES) while the second follows the gradient in calcium (Ca) and magnesium (Mg) and mirrors cell structural differences. Here, we tested in grasslands whether the sum Ca + Mg concentrations is a better indicator of digestibility than LES constituents. Structural equationmodelling revealed that the total effect size of N (0.30) on digestibility was much lower than that of Ca + Mg (0.58). The N effect originated predominantly from sampling date (biomass ageing), while the Ca + Mg effect largely from phylogenetic composition (proportion of monocots). Thus, plant variation in partially substitutable divalent cations seems to play a significant role in biomass digestion by ruminants. This finding contests, together with litter decomposition studies, the prominent role of the LES for understanding both fundamental ecological processes. |
英文关键词 | asterids biomass dicots leaf dry matter content leaf economics spectrum monocots nitrogen phosphorus rosids rumen liquor |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000431987100012 |
WOS关键词 | LEAF NUTRIENT CONCENTRATIONS ; TRAITS ; LITTER ; DECOMPOSITION ; SOIL ; LEAVES ; COVARIATION ; VARIABILITY ; MANAGEMENT ; GRADIENTS |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31499 |
专题 | 资源环境科学 |
作者单位 | 1.Czech Univ Life Sci, Fac Environm Sci, Dept Ecol, Kamycka 1176, Prague 16521 6, Suchdol, Czech Republic; 2.Palacky Univ, Fac Sci, Dept Ecol & Environm Sci, Slechtitelu 241-27, Olomouc 78371, Czech Republic; 3.Mendel Univ Brno, Fac Agron, Dept Anim Nutr & Forage Prod, Zemedelska 1, Brno 61300, Czech Republic; 4.James Hutton Inst, Aberdeen AB15 8QH, Scotland |
推荐引用方式 GB/T 7714 | Mladkova, Pavla,Mladek, Jan,Hejduk, Stanislav,et al. Calcium plus magnesium indicates digestibility: the significance of the second major axis of plant chemical variation for ecological processes[J]. ECOLOGY LETTERS,2018,21(6):885-895. |
APA | Mladkova, Pavla,Mladek, Jan,Hejduk, Stanislav,Hejcman, Michal,&Pakeman, Robin J..(2018).Calcium plus magnesium indicates digestibility: the significance of the second major axis of plant chemical variation for ecological processes.ECOLOGY LETTERS,21(6),885-895. |
MLA | Mladkova, Pavla,et al."Calcium plus magnesium indicates digestibility: the significance of the second major axis of plant chemical variation for ecological processes".ECOLOGY LETTERS 21.6(2018):885-895. |
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