Extracellular enzyme activity and stoichiometry: The effect of soil microbial element limitation during leaf litter decomposition

Bai, Xuejuan; Dippold, Michaela A.; An, Shaoshan; Wang, Baorong; Zhang, Haixin; Loeppmann, Sebastian

doi:10.1016/j.ecolind.2020.107200

Cited by 100 publications

(66 citation statements)

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“…Soil extracellular enzyme activities and associated enzymatic stoichiometry are considered as sensitive indicators of nutrient availability and microbial substrate limitation [59][60][61]. Indeed, the partitioning of C between anabolic and catabolic processes affects the rate of C accumulation in soils [62] and also changes the levels of N and P rates, which are limiting factors for the growth of plant and microorganisms in soils [63].…”

Section: Introductionmentioning

confidence: 99%

Soil Enzyme Activity and Stoichiometry: Linking Soil Microorganism Resource Requirement and Legume Carbon Rhizodeposition

et al. 2021

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Legumes provide multiple ecosystem services in agricultural systems. The objectives of this study were to evaluate the influence of different legumes through C rhizodeposition on the dynamics of C, N and P in soil and on microbial communities’ resource requirements. Legumes pea (Pisum sativum L.), faba bean (Vicia faba L.), white clover (Trifolium repens L.), crimson clover (Trifolium incarnatum L.) and non-legume wheat (Triticum aestivum L.) were grown in pots. Carbon rhizodeposition was quantified by using 13CO2 labeling, and six soil enzyme activities were measured: β-glucosidase (BG), arylamidase (ARYLN), N-acetyl-glucosaminidase (NAG), phosphatases (PHO) and alkaline and acid phosphatases (AKP and ACP). Enzyme stoichiometry approaches were applied. The results showed that BG, NAG and ACP activities were positively influenced by faba bean and clovers. Enzyme stoichiometry analysis revealed a limitation of microorganisms in C and P resources at the plant reproductive stage. These results were explained by plant functional traits. Plant biomass production, root total length, the ability of plants to rhizodeposit C and the C and N content of plant tissues were the main explicative factors. This study also shows that N and C nutrient supplies positively contribute to nutritional requirements and the growth of microorganisms and P availability in soil.

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Section: Introductionmentioning

confidence: 99%

Soil Enzyme Activity and Stoichiometry: Linking Soil Microorganism Resource Requirement and Legume Carbon Rhizodeposition

et al. 2021

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“…Five plantations of this study had signi cantly different soil properties and litter quality. A study of soil microbial time dynamics con rmed that SWC, pH, soil phosphorus, leaf litter phosphorus, and the ratio of leaf litter carbon to phosphorus in uenced soil enzyme activities by enhancing or inhibiting the growth of soil microbes (Bai et al 2021). Our study showed that soil SC, UE, and ALP in C. korshinskii were higher than those in other four tree species by 3.97%-16.90%, 13.96%-36.99% and 42.56%-178.25%, indicating that tree species could directly or indirectly affected soil enzyme activities (Wang et al 2012;Ren et al 2016).…”

Section: Effects Tree Species On Soil Enzyme Activitiesmentioning

confidence: 99%

“…Soil microbes promoted the extraction of restricted elements by regulating the production of soil enzymes and the e ciency of nutrient utilization (Bai et al 2021). The signi cant positive correlation between TC, OC, TN, AN, LN and LP, OC, TN, AN, LN and ALP, and LN, SC, UE, and AP illustrated that soil microbes might tend to consume more carbon and nitrogen to increase the soil phosphorus availability, alleviate the limitation of phosphorus on the growth of plants and microorganisms, and meanwhile, improve other nutrients in the soil (Yan et al 2020;Bai et al 2021). It was also proved that in the C. korshinskii plantation with the highest LN, TC, OC, TN and AN, the LP, soil ALP and AP in whose was higher than that in other plantations and grasslands (Figure 1, 2&3).…”

Section: Effects Tree Species On Soil Enzyme Activitiesmentioning

confidence: 99%

“…Zhang et al (2018b) and Zhang et al (2021) pointed out that phosphorus limitation existed in the Loess Plateau and might become more severe in the future. Soil microbes promoted the extraction of restricted elements by regulating the production of soil enzymes and the e ciency of nutrient utilization (Bai et al 2021). The signi cant positive correlation between TC, OC, TN, AN, LN and LP, OC, TN, AN, LN and ALP, and LN, SC, UE, and AP illustrated that soil microbes might tend to consume more carbon and nitrogen to increase the soil phosphorus availability, alleviate the limitation of phosphorus on the growth of plants and microorganisms, and meanwhile, improve other nutrients in the soil (Yan et al 2020;Bai et al 2021).…”

Section: Effects Tree Species On Soil Enzyme Activitiesmentioning

confidence: 99%

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Effects of Tree Species and Soil Enzyme Activities on Soil Nutrients in The Dryland Plantations

Han

Sun

et al. 2021

Preprint

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Background Long-term afforestation of different tree species strongly changes the soil physicochemical and biological properties. However, how tree species through litter quality and soil enzyme activities affect the succession of soil nutrients is still unclear in the dryland plantations. In this study, samples of surface soil (0–20 cm) and woody litter were collected from 55 years Caragana korshinskii, and 50 years Armeniaca sibirica, Populus hopeiensis, Platycladus orientalis, and Pinus tabulaeformis, and the natural grassland, and tested for the carbon, nitrogen, phosphorus, and potassium contents, as well as the soil sucrase (SC), urease (UE), and alkaline phosphorus (ALP) activities. Results We found that long-term dryland plantations increased soil total carbon (TC) by 1.69%-28.42%, but significantly decreased soil total phosphorus (TP) and total potassium (TK) by 11.87%-30.58% and 4.69%-8.25%. The C. korshinskii significantly increased soil TC, organic carbon (OC), total nitrogen (TN), available nitrogen (AN), available potassium (AK), UE, and ALP by 28.42%, 56.08%, 57.41%, 107.25%, 10.29%, 11.00%, and 107.81%, respectively, and also raised soil available phosphorus (AP) by 18.56%; while the P. orientalis significantly decreased soil TN, TP, AP, TK, AK, and UE by 38.89%, 30.58%, 76.39%, 8.25%, 8.33%, and 18.97%, respectively, and also reduced soil SC and ALP by 3.84% and 25.32%, compared to those in grassland. In addition, the C. korshinskii produced high-quality litter with lower carbon, the highest nitrogen and phosphorus, and higher potassium contents than those of P. orientalis. The litter chemical properties and soil enzyme activities together explained 62.2% of the total variation of soil nutrients, especially the litter phosphorus (LP) and soil ALP. Therefore, the tree species, LP, and soil ALP were key factors driving soil nutrient succession in dryland plantations. And the significantly positive coupling relationship between nitrogen and phosphorus in the "litter-enzyme-soil" system revealed that the improvement of nitrogen level promoted the phosphorus cycle of the ecosystem. Conclusions This study suggests choosing leguminous tree species with high-quality litter to establish plantations in the phosphorus-limited dryland, which will improve soil nutrients and alleviate nutrient limitations by adjusting soil enzyme activities.

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“…Soil enzymes are natural mediators and catalysts of several essential soil processes, including the breakdown of organic matter released to the soil during plant development, the formation and decomposition of soil humus, the release and delivery of mineral nutrients to plants, molecular nitrogen (N) fixation, and the biochemical cycle of N, carbon (C), and other major elements (Bai et al., 2021; G. H. Yu & Kuzyakov, 2021). In addition, soil enzyme activities can be sensitive indicators of changes in the soil environment, and farming systems can have major effects on changes in soil enzymatic activity (Kwiatkowski et al., 2020).…”

Section: Introductionmentioning

confidence: 99%

Long‐term straw mulching in a no‐till field improves soil functionality and rice yield by increasing soil enzymatic activity and chemical properties in paddy soils

Iqbal

Khan

Green

et al. 2021

J. Plant Nutr. Soil Sci.

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Background The degradation in soil quality over the last four decades poses a major threat to the sustainability of the puddled transplanted rice (Oryza sativa L.) system in southern China. Conservation tillage practices (CTPs) such as no‐tillage and crop straw mulching (SM) are considered effective strategies for achieving sustainable crop production. Aims This study aimed to assess the efficacy of different CTPs on crop yield and soil properties in an ongoing long‐term field experiment (2008–2020), particularly changes in soil chemical properties and enzymatic activities and their relationship with rice grain yield. Methods Five treatments including conventional tillage (CT), CT and straw retention, CT and SM (CT‐SM), no‐tillage (NT), and NT and SM (NT‐SM) were applied at a field scale over a period of 12 years. In Years 11 (2019) and 12 (2020), soil samples were collected at two depths (0–10 cm and 10–20 cm) after rice harvesting. Soil chemical traits, enzymatic activities, and rice production were measured in response to different CTPs treatments, and differences between treatments were assessed. Results Soil pH, soil organic carbon, total nitrogen (N), available N, total phosphorus (P), and available P were significantly higher in CTP treatments, compared with CT. The activities of soil enzymes including invertase, acid phosphatase, urease, catalase, β‐glucosidase, and cellulase were significantly higher in CTP soils, compared with CT soils. A general trend of lower enzyme activity was observed at the deeper soil depth. The NT‐SM treatment fields consistently produced the highest grain yield and larges differences in edaphic properties relative to the CT fields; however, all CTP treatments lead to significant increases in grant yield and edaphic properties relative to CT. A correlation analysis demonstrated that the enhancement in soil enzymatic activities contributed to soil quality and grain yield of rice. Conclusions The results of this long‐term field study indicate that the use of CTPs in paddy soil can benefit farmers in southern China by improving soil functionality and sustainability and the grain yield of rice.

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Extracellular enzyme activity and stoichiometry: The effect of soil microbial element limitation during leaf litter decomposition

Cited by 100 publications

References 78 publications

Soil Enzyme Activity and Stoichiometry: Linking Soil Microorganism Resource Requirement and Legume Carbon Rhizodeposition

Soil Enzyme Activity and Stoichiometry: Linking Soil Microorganism Resource Requirement and Legume Carbon Rhizodeposition

Effects of Tree Species and Soil Enzyme Activities on Soil Nutrients in The Dryland Plantations

Long‐term straw mulching in a no‐till field improves soil functionality and rice yield by increasing soil enzymatic activity and chemical properties in paddy soils

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