Biodiversity alleviates the decrease of grassland multifunctionality under grazing disturbance: A global meta‐analysis

Zhang, Ruiyang; Tian, Dashuan; Chen, Han Y. H.; Seabloom, Eric W.; Han, Guodong; Wang, Shaopeng; Yu, Guirui; Li, Zhaolei; Niu, Shuli

doi:10.1111/geb.13408

Cited by 44 publications

(21 citation statements)

References 106 publications

(119 reference statements)

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“…Plant species loss, and alterations in composition and structure have been reported to decrease plant C:nutrient (Abbas et al 2013), which may be attributed to decreases in biomass production and associated C stocks induced by competitive relaxation via species partitioning of light (Abbas et al 2013;Liu et al 2021). Our study supports that the resistance and resilience of speciespoor communities to grazing are lower than those of species-rich communities (Zhang et al 2022); however, our results also show that low plant diversity supported relative high EMF (Fig. 7), probably because low plant C:nutrient ratios caused by changes in plant communities may rapidly translate nutrients into soil and microorganisms through litter decomposition.…”

Section: Indirect Effects Of N Addition and Grazing On Ecosystem Mult...supporting

confidence: 76%

“…Grazing could indirectly affect the ecosystem multifunctionality in several ways, for example, through the changes in biological and non-biological factors, such as soil pH (Cui et al 2020), and aboveand below-ground biodiversity (Delgado-Baquerizo et al 2020;Maestre et al 2012;Zhang et al 2022). A previous study reported a positive effect of grazing on soil pH in grazed grassland on the arid and semi-arid grassland (Cui et al 2020), we show that grazing significantly increased EMF by decreasing soil pH (Fig.…”

Section: Indirect Effects Of N Addition and Grazing On Ecosystem Mult...supporting

confidence: 57%

“…As the N addition rate increases, plant C:N and C:P decrease accompanied by species loss and diversity decline in grassland, in turn, causing noticeable impacts on ecosystem functions associated with C sequestration (Abbas et al 2013;Guiz et al 2018;Zheng et al 2021). Therefore, the effects of biodiversity on ecosystem functioning are highly dependent on the stocking rate and N addition rate (Liu et al 2021;Zhang et al 2022).…”

Section: Introductionmentioning

confidence: 99%

“…For example, moderate stocking rate and N enrichment may increase soil N availability and plant N concentration (Li et al 2019;Liu et al 2020;Yang et al 2018;Zhang et al 2021a). Plant productivity generally increases with the increase in N addition rate (Liu et al 2021;Zheng et al 2021), but decreases with the increase in stocking rate (Zhang et al 2022). Substantial literature evidence has shown that multi-functional performance is driven by eutrophication of grassland ecosystem or grazer activities, but the interaction of grazing and N enrichment on EMF is still vague.…”

Section: Introductionmentioning

confidence: 99%

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Different effects of grazing and nitrogen addition on ecosystem multifunctionality are driven by changes in plant resource stoichiometry in a typical steppe

He²,

Zhang³

et al. 2022

Plant Soil

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resource stoichiometry in a typical steppe on the Loess Plateau. Results We found that increasing stocking rate and interaction between grazing and N addition significantly decreased EMF, while increasing N addition rate significantly promoted EMF. Grazing decreased soil NH 4 + -N, soil NO 3 − -N, aboveground biomass, and plant C, N, and P pools, but increased soil total N and P at 8.7 and 5.3 sheep ha − 1 , respectively. N addition increased soil NH 4 + -N, NO 3 − -N, and total P. Plant aboveground biomass, and plant C, N, and P pools increased at the lower N addition rate (≤ 5 g N m − 2 yr − 1 ) under grazing. The structural equation models indicated that (1) EMF was driven by the direct effects of grazing and the indirect effects of grazing on plant resource stoichiometry and soil pH;(2) EMF increased with increasing N addition rates, but such positive response of EMF to increasing N addition rates was alleviated at high levels of plant resource stoichiometry and diversity; and (3) the indirect effects of plant diversity induced by grazing and N addition had moderate effects on EMF via the variations of plant resource stoichiometry. Conclusions This study demonstrated grazing and N addition had contrasting effects on ecosystem multifunctionality in a typical steppe, and highlighted the capacity of plant diversity in balancing plant elements that serve as a key mechanism in the maintenance of EMF in response to intensive grazing y and N enrichment.

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Section: Indirect Effects Of N Addition and Grazing On Ecosystem Mult...supporting

confidence: 76%

Section: Indirect Effects Of N Addition and Grazing On Ecosystem Mult...supporting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Different effects of grazing and nitrogen addition on ecosystem multifunctionality are driven by changes in plant resource stoichiometry in a typical steppe

He²,

Zhang³

et al. 2022

Plant Soil

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“…However, the eight indicators of ecosystem functions considered are generally associated more with changes in biodiversity than these direct measures of fluxes of energy and matter (Schmid et al, 2009). Indeed, these indicators are important properties determining ecosystem functions in numerous studies (e.g., Allan et al, 2013;Hautier et al, 2018;Hu et al, 2021;Jing et al, 2015;Liu et al, 2021;Peters et al, 2019;Zhang et al, 2021) that are especially relevant to the long-term net balance of energy and matter in ecosystems (Garland et al, 2021;Manning et al, 2018). In brief, the eight indicators were used to represent the basic nutrient pools of the alpine grasslands (Supporting Information Table S1).…”

Section: Quantifying Spatial Turnover In Nutrient Poolsmentioning

confidence: 99%

The influence of aboveground and belowground species composition on spatial turnover in nutrient pools in alpine grasslands

Jing

Prager

Chen

et al. 2021

Global Ecol Biogeogr

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Aim An important research question in ecology is how climate and the biodiversity of aboveground plants and belowground microbiomes affect ecosystem functions such as nutrient pools. However, little is studied on the concurrent role of above‐ and belowground species composition in shaping the spatial distribution patterns of ecosystem functions across environmental gradients. Here, we investigated the relationships between the taxonomic composition of plants, soil bacteria and soil fungi and spatial turnover in nutrient pools, and assessed how species composition–nutrient pool relationships were mediated by contemporary climatic conditions. Location Qinghai‐Tibetan Plateau. Time period Current. Major taxa studied Plants, soil bacteria and soil fungi. Methods We surveyed plant assemblages, sampled the taxonomic composition of soil bacteria and soil fungi, and measured plant‐ and soil‐mediated nutrient pools at 60 alpine grasslands on the Qinghai‐Tibetan Plateau. Using Mantel tests, structural equation models and general linear models, we investigated the relative importance of the taxonomic composition of plant, soil bacterial, and soil fungal communities on the spatial turnover of alpine grassland nutrient pools. Results We found that the taxonomic composition of plant, soil bacterial, and soil fungal communities was associated with local climate. However, the effects of local climate on the spatial turnover of plant‐ and soil‐mediated nutrient pools were mainly indirect and mediated through plant and soil bacterial species composition, but not through soil fungal species composition. We further found that the replacement component of soil bacterial β‐diversity and the richness difference of plant β‐diversity were the direct predictors of nutrient pools in the alpine grasslands. Main conclusions These results highlight that belowground bacterial composition together with aboveground plant species composition are related to spatial turnover in nutrient pools, perhaps even driving it. Conserving above‐ and belowground biodiversity may therefore safeguard against the impacts of local climate on the functions of climate‐sensitive alpine grasslands.

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Grazing mediates the biodiversity effects on multifunctionality in grasslands

Yan,

Ding,

Wang

et al. 2023

Land Degrad Dev

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Biodiversity loss by grazing pressure has threatened multiple ecosystem functions simultaneously (ecosystem multifunctionality, EMF) in grasslands. Therefore, detecting the relation between EMF and biodiversity under human intervention would provide guidance on the optimization of sustainable grassland management. However, little is known about how grazing effects grassland EMF by mediating biodiversity under different grazing intensities. Here, species and functional diversity were investigated along a longitudinal gradient in Inner Mongolia grassland, and its EMF was quantified comprehensively on six ecosystem functions by an averaging approach, threshold approach and multiple threshold approach to assess the impact of grazing intensity on EMF. There was a significantly lower average EMF index and above‐ground biomass under heavy grazing (HG) than under light grazing (LG). The threshold approach‐based EMF and average EMF index were positively related to species diversity and functional diversity, and species diversity was a stronger driver of EMF than functional diversity. Compared with LG, the slope of the positive relation between EMF and species diversity significantly weakened by 40%–86% under moderate grazing (MG) and decreased by 30%–100% under HG, and reversed to a negative relation between functional diversity and EMF under HG. Additionally, species diversity was more negatively influenced by soil pH and sand content, while functional diversity was more negatively influenced by grazing intensity, indicating that functional diversity was more sensitive to intensive grazing. This study highlights the role of grazing intensity for driving multiple ecosystem functions, and reinforces the significance of managing both species diversity and functional diversity for sustaining productive functional grasslands.

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Biodiversity alleviates the decrease of grassland multifunctionality under grazing disturbance: A global meta‐analysis

Cited by 44 publications

References 106 publications

Different effects of grazing and nitrogen addition on ecosystem multifunctionality are driven by changes in plant resource stoichiometry in a typical steppe

Different effects of grazing and nitrogen addition on ecosystem multifunctionality are driven by changes in plant resource stoichiometry in a typical steppe

The influence of aboveground and belowground species composition on spatial turnover in nutrient pools in alpine grasslands

Grazing mediates the biodiversity effects on multifunctionality in grasslands

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