Deep soil contributions to global nitrogen budgets DOI Creative Commons
Maya Almaraz, Chao Wang, Michelle Y. Wong

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 23, 2025

Previous estimates of deep soil inorganic nitrogen (N) reservoirs have been mainly limited to desert soils, however, recent evidence suggests that pools are far more ubiquitous across biomes and therefore may be important for global N budgets. Here, we used observations from 280 profiles (2-205 m) a wide array ecosystem land cover types seek insight into the full geospatial variation nitrate. Using random forest machine learning approach estimate total nitrate pool 15.2 ( ± 1.1 SD) Pg N. When included in pool, our increase storage budget by 16%. Estimating these continues add understanding soils as fate anthropogenically fixed N, critical role play biosphere. Researchers contain nitrogen, increasing budgets These could crucial nutrient cycling environmental processes.

Language: Английский

Twenty Years of Progress, Challenges, and Opportunities in Measuring and Understanding Soil Respiration DOI Creative Commons
Ben Bond‐Lamberty, Ashley P. Ballantyne, E. Berryman

et al.

Journal of Geophysical Research Biogeosciences, Journal Year: 2024, Volume and Issue: 129(2)

Published: Feb. 1, 2024

Abstract Soil respiration (Rs), the soil‐to‐atmosphere flux of CO 2 , is a dominant but uncertain part carbon cycle, even after decades study. This review focuses on progress in understanding Rs from laboratory incubations to global estimates. We survey key developments situ ecosystem‐scale observations and manipulations, synthesize meta‐analyses estimates, discuss most compelling challenges opportunities for future. Increasingly sophisticated lab experiments have yielded insights into interaction among heterotrophic respiration, substrate supply, enzymatic kinetics, extended incubation‐based analyses across space time. Observational manipulative field‐based used improved measurement approaches deepen our integrated effects environmental change disturbance Rs. Freely‐available observational databases enabled studies probing magnitude of, constraints on, flux. Key field include expanding measurements, experiments, under‐represented communities ecosystems; reconciling independent estimates fluxes trends; testing leveraging power machine learning process‐based models, both independently conjunction with each other; continuing field's tradition using novel explore diverse mechanisms ecosystems.

Language: Английский

Citations

27
Effects of freeze-thaw cycles on soil greenhouse gas emissions: A systematic review DOI
Yuqing Liu, Xiaochu Wang, Yujuan Wen

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 248, P. 118386 - 118386

Published: Feb. 3, 2024

Language: Английский

Citations

19
Challenges in upscaling laboratory studies to ecosystems in soil microbiology research DOI Creative Commons
Ji Chen, Yong Zhang, Yakov Kuzyakov

et al.

Global Change Biology, Journal Year: 2022, Volume and Issue: 29(3), P. 569 - 574

Published: Nov. 28, 2022

Soil microbiology has entered into the big data era, but challenges in bridging laboratory-, field-, and model-based studies of ecosystem functions still remain. Indeed, limitation factors laboratory experiments disregards interactions a broad range situ environmental drivers leading to frequent contradictions between laboratory- field-based studies, which may consequently mislead model development projections. Upscaling soil research from ecosystems represents one grand facing scientists, with great potential inform policymakers toward climate-smart resource-efficient ecosystems. The upscaling is not only scale problem, also requires disentangling functional relationships processes on each level. We point three reasons for gaps (i.e., spatiotemporal dynamics, sampling disturbances, plant-soil-microbial feedbacks), key issues caution when observations predictions across-scale effect, complex-process coupling, multi-factor regulation). Field-based cover limited variation that must be supplemented by mesocosm manipulative revealing underlying mechanisms. knowledge should motivate interdisciplinary collaboration across experimental, observational, theoretic, modeling research.

Language: Английский

Citations

52
Forest-to-Cropland Conversion Reshapes Microbial Hierarchical Interactions and Degrades Ecosystem Multifunctionality at a National Scale DOI
Long‐Jun Ding, Xinyue Ren,

Zhi-Zi Zhou

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(25), P. 11027 - 11040

Published: June 10, 2024

Conversion from natural lands to cropland, primarily driven by agricultural expansion, could significantly alter soil microbiome worldwide; however, influences of forest-to-cropland conversion on microbial hierarchical interactions and ecosystem multifunctionality have not been fully understood. Here, we examined the effects intratrophic cross-trophic further disclosed their underlying drivers at a national scale, using Illumina sequencing combined with high-throughput quantitative PCR techniques. The changed structure (including prokaryotic, fungal, protistan communities) while it did affect its alpha diversity. Both intrakingdom interkingdom networks revealed that interaction patterns generally tended be more modular resist environmental disturbance introduced conversion, but this was insufficient for maintain stability; hence, predation behaviors were still disturbed under such conversion. Moreover, key clusters declined during mainly because increased total phosphorus level, drove great degradation (by 207%) in cropland soils. Overall, these findings comprehensively implied negative agroecosystem, multifunctionality.

Language: Английский

Citations

9
Accumulation of soil microbial extracellular and cellular residues during forest rewilding: Implications for soil carbon stabilization in older plantations DOI
Ke Shi, Jiahui Liao, Xiaoming Zou

et al.

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 188, P. 109250 - 109250

Published: Nov. 17, 2023

Language: Английский

Citations

19
Variation patterns and their driving factors in soil extracellular enzyme activities and stoichiometry along a 49-years vegetation restoration chronosequence DOI
Zhijie Long, He Zhu, Junbo He

et al.

Plant and Soil, Journal Year: 2024, Volume and Issue: 500(1-2), P. 665 - 680

Published: Feb. 13, 2024

Language: Английский

Citations

8
Straw interlayer improves sunflower root growth: Evidence from moisture and salt migration and the microbial community in saline-alkali soil DOI Creative Commons
Mengmeng Chen, Guoli Wang,

Yupeng Jing

et al.

Journal of Integrative Agriculture, Journal Year: 2024, Volume and Issue: 23(11), P. 3870 - 3881

Published: March 14, 2024

A straw interlayer added to soil can effectively reduce salinity effects on plant growth, however, the of moisture, salt and microbial community composition growth under a are unclear. rhizobox study was conducted investigate role thickness migration, composition, as well root in sunflower. The included four treatments: Control (no interlayer); S3 (straw 3.0 cm); S5 5.0 S7 7.0 cm). Straw treatments increased moisture by 8.2%-11.0% after irrigation decreased content bud stage 0-40 cm soil. Total length, total surface area, average diameter, volume number tips sunflower plants were higher than control, highest treatment. This stimulated ascribed abundance Chloroflexi Verrucomicrobia bacteria with interlayer, which 55.7 54.7%, respectively, Addition 5 is practical environmentally feasible approach for improving saline-alkali

Language: Английский

Citations

8
Microbial evolution—An under‐appreciated driver of soil carbon cycling DOI Creative Commons
Elsa Abs, Alexander B. Chase, Stefano Manzoni

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(4)

Published: April 1, 2024

Abstract Although substantial advances in predicting the ecological impacts of global change have been made, predictions evolutionary lagged behind. In soil ecosystems, microbes act as primary energetic drivers carbon cycling; however, are also capable evolving on timescales comparable to rates change. Given importance ecosystems cycling, we assess potential impact microbial evolution carbon‐climate feedbacks this system. We begin by reviewing current state knowledge concerning response and its specific effect dynamics. Through integration, synthesize a roadmap detailing how integrate into ecosystem biogeochemical models. Specifically, highlight microscale mechanistic models, including choosing an appropriate model (e.g., adaptive dynamics, quantitative genetics), validating with ‘omics’ experimental data, scaling adaptations level processes, ecosystem‐scale measurements. The proposed steps will require significant investment scientific resources might 10–20 years be fully implemented. However, through application multi‐scale integrated approaches, advance integration predictive understanding providing clarity role within broader context environmental

Language: Английский

Citations

8
Revisiting the relationships between soil nitrous oxide emissions and microbial functional gene abundances DOI Open Access
Yong Zhang, Ji Chen, Xiaoli Cheng

et al.

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(17), P. 4697 - 4699

Published: July 10, 2023

A conceptual framework proposes that soil N2O emissions are more likely related to microbial functional gene abundances based on laboratory experiments than in-situ observations. This has largely contributed reconciling the disputation linking with abundances, but direct evidence is lacking. Wei et al. (2023) provided new support this framework, showing O2 dynamics were a better predictor of abundances. Before observations can inform modeling and sustainable nitrogen management, however, some additional efforts needed revisit relationships between Nitrous oxide (N2O) long-lived greenhouse gas stratospheric ozone-depleting substance significant influence planetary boundary (Buessecker al., 2022). It been generally thought regulated by genes encoding enzymes production consumption (Richardson 2009; Spiro, 2012). Examples these include amo (encoding ammonia monooxygenase), nir nitrite reductase), nor NO nos reductase). Given community size guilds determines their functions, clear relationship associated processes often assumed (Rocca 2014). Therefore, many studies have centered potential in mitigating 2012), try develop genes-informed models (Chen 2023). But key question persists: How robust abundances? global meta-analysis loading proposed reconcile dilemma Specifically, (Zhang Indeed, supporting 2023; Prosser 2020). However, there lack high-quality test robustness findings. The recent work framework. authors conducted well-designed field experiment at Shangzhuang Research Station 2018–2019, observed (Wei Further results indicated poor could be attributed complexity both environmental conditions field. In addition, we applaud authors' combining multiple measurement techniques, including 15N-labeling, isotope analysis, imaging technique, high-frequency measurements N2O. combination contributes deeper understanding complex across spatiotemporal scales. For example, N2O-15N site preference analysis distinguish produced bacterial denitrification nitrification/fungal denitrification, technique potentially identify dynamics, hot spots, moments. summary, gratefully acknowledge (2023), which also presented an important example for monitoring parsing sources emissions. Meanwhile, not only (Spiro, 2012) enzymic activities 2009) mitigate would helpful further explore links among emissions, genes, different terrestrial ecosystems. study was funded National Natural Science Foundation China (32130069) EU H2020 Marie Skłodowska-Curie Actions (839806). declare no conflict interest. Data sharing applicable article as datasets generated or analyzed during current study.

Language: Английский

Citations

15
Deep soil microbial carbon use efficiency responds stronger to nitrogen deposition than top soil in tropical forests, southern China DOI
Yamin Jiang,

Tianyan Su,

Hua‐Feng Wang

et al.

Plant and Soil, Journal Year: 2024, Volume and Issue: 500(1-2), P. 605 - 622

Published: Jan. 31, 2024

Language: Английский

Citations

6