Rhizosphere effects of woody plants on soil biogeochemical processes: A meta-analysis

2021 ◽  
pp. 108310
Author(s):  
Dayong Gan ◽  
Jiguang Feng ◽  
Mengguang Han ◽  
Hui Zeng ◽  
Biao Zhu
Keyword(s):  
Woody Plants ◽  
Meta Analysis ◽  
Biogeochemical Processes ◽  
Rhizosphere Effects

Rhizosphere effect of woody plants: A meta-analysis

2020 ◽  
Author(s):  
Dayong Gan ◽  
Jiguang Feng ◽  
Biao Zhu
Keyword(s):  
Enzyme Activities ◽  
N Mineralization ◽  
Woody Plants ◽  
Meta Analysis ◽  
Bulk Soil ◽  
Net N Mineralization ◽  
Mineralization Rate ◽  
C Mineralization ◽  
Rhizosphere Effect ◽  
Rhizosphere Effects

<p>Interactions among plants, soil and microbiota play an important role in maintaining the function of terrestrial ecosystems, which often occur in rhizosphere. The rhizosphere effect is defined as the difference in soil properties and biogeochemical processes between rhizosphere and root-free bulk soil. Despite its importance in controlling soil biogeochemical cycling, quantitative assessments of the rhizosphere effects of woody plants are still rare. In this study, we synthesized the rhizosphere effects of woody plants on soil physicochemical properties, microbial biomass and community structure, enzyme activities, and carbon (C) and nitrogen (N) mineralization rates. We also explored the controls of rhizosphere effects by functional traits (eg. leaf life form, mycorrhizal type), environmental and experimental variables (eg. soil sampling method).</p><p>Our results showed that the rhizosphere effects on most soil physicochemical variables were positive (except pH). For example, the rhizosphere stimulated C mineralization rate by 56.7%, gross N mineralization rate by 57.9%, and net N mineralization by 60.9% on average compared to the root-free bulk soil. Moreover, for enzyme activities and C mineralization rate, the rhizosphere effects were generally higher in shrubs than in trees. For C mineralization rate, the rhizosphere effects of evergreen species were stronger than those of deciduous species. However, the rhizosphere effects did not vary significantly between species associated two mycorrhizal types (arbuscular mycorrhizal, AM vs. ectomycorrhizal ECM), with few exceptions for NO<sub>3</sub><sup>-</sup>, NH<sub>4</sub><sup>+</sup>, bacteria and fungi biomass. Overall, this meta-analysis comprehensively assessed the rhizosphere effects of woody plants (187 species and 29 variables) on global scale and strengthened our understanding of the effect of living roots on soil C and nutrient cycling in the rhizosphere.</p>

Insect Performance on Experimentally Stressed Woody Plants: A Meta-Analysis

1998 ◽  
Vol 43 (1) ◽  
pp. 195-216 ◽  
Author(s):  
Julia Koricheva ◽  
Stig Larsson ◽  
Erkki Haukioja
Keyword(s):  
Woody Plants ◽  
Meta Analysis ◽  
Insect Performance

scholarly journals Effects of herbivory on leaf life span in woody plants: a meta-analysis

2014 ◽  
Vol 102 (4) ◽  
pp. 873-881 ◽  
Author(s):  
Elena L. Zvereva ◽  
Mikhail V. Kozlov
Keyword(s):  
Life Span ◽  
Woody Plants ◽  
Meta Analysis ◽  
Leaf Life Span

Effects of gaps on regeneration of woody plants: a meta-analysis

2014 ◽  
Vol 25 (3) ◽  
pp. 501-510 ◽  
Author(s):  
Jiaojun Zhu ◽  
Deliang Lu ◽  
Weidong Zhang
Keyword(s):  
Woody Plants ◽  
Meta Analysis

Growth and reproduction of vascular plants in polluted environments: a synthesis of existing knowledge

2010 ◽  
Vol 18 (NA) ◽  
pp. 355-367 ◽  
Author(s):  
Elena L. Zvereva ◽  
Marja Roitto ◽  
Mikhail V. Kozlov
Keyword(s):  
Woody Plants ◽  
Meta Analysis ◽  
Leaf Size ◽  
Life Forms ◽  
Herbaceous Plants ◽  
Plant Responses ◽  
Plant Phylogeny ◽  
Point Polluters ◽  
Species Responses ◽  
Growth And Reproduction

Identification of factors explaining diversity in plant responses to industrial pollution is crucial for predicting fates of polluted ecosystems. Meta-analysis based on 203 publications demonstrated that plants growing near point polluters showed similar decreases in characters reflecting growth (–13.1%) and reproduction processes (–8.5%). In herbaceous plants, root growth was reduced, while aboveground biomass did not change, because the decrease in leaf size was compensated by an increase in leaf number. In contrast, woody plants demonstrated no changes in allometry and their growth was reduced to a greater extent than growth of herbaceous plants. Raunkiaer’s classification of life forms appeared the best predictor of species’ responses to pollution. Within woody plants, trees and shrubs, but not dwarf shrubs, showed strong decreases in growth and reproduction. Within herbaceous plants, significant growth reduction was observed only in annuals. Longevity of foliage or plant phylogeny did not explain variation in species’ responses. Adverse effects of pollution were stronger in regions with higher temperature and precipitation, hinting that existing pollution loads may become more harmful for plants as climate changes. Relatively minor explanatory value of the characteristics of individual polluters removes one of the principal obstacles to accounting for the effects of pollution in vegetation models and allows extrapolation of the effects observed near point polluters to both regional and global scales. We conclude that losses in productivity of plant communities due to aerial pollution can be approximately estimated on the basis of the life form spectra and climate.

scholarly journals Phenological mismatches between above- and below-ground plant responses to climate warming: a global synthesis

2021 ◽  
Author(s):  
Huiying Liu ◽  
Hao Wang ◽  
Nan Li ◽  
Junjiong Shao ◽  
Xuhui Zhou ◽  
...  
Keyword(s):  
Carbon Cycling ◽  
Climate Warming ◽  
Woody Plants ◽  
Meta Analysis ◽  
Growing Season ◽  
Vital Role ◽  
Plant Phenology ◽  
Herbaceous Plants ◽  
Plant Responses ◽  
Below Ground

Abstract Climate warming is changing above-ground phenology of plants around the world1, 2. However, warming effects on below-ground phenology of plants are unclear despite that roots play a vital role in carbon cycling3. By conducting a global meta-analysis, we show a phenological mismatch between above- and below-ground plant responses to climate warming. Herbaceous plants advanced both the start and end of the growing season based on their above-ground responses, resulting into a shorter growing season. Below-ground phenophases did not exhibit any obvious changes in herbaceous plants. In contrast, climate warming did not affect the length of above-ground growing season but extended the below-ground growing season of woody plants. These results highlight that climate warming can differentially affect above- and below-ground plant phenology with mismatches arising in herbaceous plants via less responsive below-ground phenology whereas mismatches in woody plants via more responsive below-ground phenology. Mismatches in above- and below-ground plant phenology imply that terrestrial carbon cycling models exclusively based on above-ground responses are less accurate, which highlight the urgent need to incorporate below-ground plant phenology into future Earth system models.

scholarly journals Caution Is Needed in Quantifying Terrestrial Biomass Responses to Elevated Temperature: Meta-Analyses of Field-Based Experimental Warming Across China

Forests ◽  
2018 ◽  
Vol 9 (10) ◽  
pp. 619 ◽  
Author(s):  
Kai Yan ◽  
Shuang Zhang ◽  
Yahuang Luo ◽  
Zhenghong Wang ◽  
Deli Zhai ◽  
...  
Keyword(s):  
Woody Plants ◽  
Plant Biomass ◽  
Meta Analysis ◽  
Woody Species ◽  
Biomass Accumulation ◽  
Response Patterns ◽  
Ground Biomass ◽  
Plant Phylogeny ◽  
Below Ground ◽  
Meta Analyses

Certainty over warming-induced biomass accumulation is essential for addressing climate change. However, no previous meta-analysis has investigated this accumulation across the whole of China; also unclear are the differences between herbaceous and woody species and across plant phylogeny, which are critical for corresponding re-vegetation. We extracted data from 90 field-based experiments to reveal general patterns and driving factors of biomass responses all over China. Based on traditional meta-analyses, a warmer temperature significantly increased above- (10.8%) and below-ground (14.2%) biomass accumulation. With increasing warming duration (WarmD) and plant clade age, both above-ground and below-ground biomass showed significant increases. However, for herbaceous versus woody plants, and the whole community versus its dominant species, responses were not always constant; the combined synergies would affect accumulative response patterns. When considering WarmD as a weight, decreases in total above-ground biomass response magnitude were presented, and the increase in below-ground biomass was no longer significant; notably, significant positive responses remained in tree species. However, if phylogenetic information was included in the calculations, all warming-induced plant biomass increases were not significant. Thus, it is still premature to speculate whether warming induces biomass increases in China; further long-term experiments are needed regarding phylogeny-based responses and interspecies relations, especially regarding woody plants and forests.

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