| [1] |
Batjes NH. 1996. Total carbon and nitrogen in the soils of the world. |
| [2] |
Paustian K, Lehmann J, Ogle S, Reay D, Robertson GP, et al. 2016. Climate-smart soils. |
| [3] |
de Souza Machado AA, Lau CW, Kloas W, Bergmann J, Bachelier JB, et al. 2019. Microplastics can change soil properties and affect plant performance. |
| [4] |
Rillig MC, Lehmann A. 2020. Microplastic in terrestrial ecosystems. |
| [5] |
FAO. 2021. Assessment of agricultural plastics and their sustainability: a call for action. Rome: FAO doi: 10.4060/cb7856en |
| [6] |
Yu JR, Adingo S, Liu X, Li X, Sun J, et al. 2022. Micro plastics in soil ecosystem - a review of sources, fate, and ecological impact. |
| [7] |
Zhao S, Rillig MC, Bing H, Cui Q, Qiu T, et al. 2024. Microplastic pollution promotes soil respiration: a global-scale meta-analysis. |
| [8] |
Ahmad M, Rajapaksha AU, Lim JE, Zhang M, Bolan N, et al. 2014. Biochar as a sorbent for contaminant management in soil and water: a review. |
| [9] |
Ji H, Zhou C, Li P. 2025. Applications of biochar in the remediation of soil microplastic pollution: a review. |
| [10] |
Weng Z, Van Zwieten L, Tavakkoli E, Rose MT, Singh BP, et al. 2022. Microspectroscopic visualization of how biochar lifts the soil organic carbon ceiling. |
| [11] |
Boots B, Russell CW, Green DS. 2019. Effects of microplastics in soil ecosystems: above and below ground. |
| [12] |
Lee YK, Hur J. 2020. Adsorption of microplastic-derived organic matter onto minerals. |
| [13] |
Fischer M, Scholz-Böttcher BM. 2017. Simultaneous trace identification and quantification of common types of microplastics in environmental samples by pyrolysis-gas chromatography-mass spectrometry. |
| [14] |
Rillig MC. 2018. Microplastic disguising as soil carbon storage. |
| [15] |
Li X, Yao S, Wang Z, Jiang X, Song Y, et al. 2022. Polyethylene microplastic and biochar interactively affect the global warming potential of soil greenhouse gas emissions. |
| [16] |
Han L, Chen L, Li D, Ji Y, Feng Y, et al. 2022. Influence of polyethylene terephthalate microplastic and biochar co-existence on paddy soil bacterial community structure and greenhouse gas emission. |
| [17] |
Zou Z, Yu Q, Chen R, Wang J, Liu X. 2025. Biochar-microplastics interaction modulates soil nitrous oxide emissions and microbial communities. |
| [18] |
Islam MU, Jiang F, Guo Z, Peng X. 2021. Does biochar application improve soil aggregation? A meta-analysis. |
| [19] |
Liang Y, Lehmann A, Yang G, Leifheit EF, Rillig MC. 2021. Effects of microplastic fibers on soil aggregation and enzyme activities are organic matter dependent. |
| [20] |
Guo Z, Li P, Yang X, Wang Z, Wu Y, et al. 2023. Effects of microplastics on the transport of soil dissolved organic matter in the Loess Plateau of China. |
| [21] |
Chang S, Zhou A, Hua Z, Meng H, Zhu F, et al. 2024. Microplastics alter soil carbon cycling: effects on carbon storage, CO2 and CH4 emission and microbial community. |
| [22] |
Yu Y, Li X, Feng Z, Xiao M, Ge T, et al. 2022. Polyethylene microplastics alter the microbial functional gene abundances and increase nitrous oxide emissions from paddy soils. |
| [23] |
Lehmann J, Kleber M. 2015. The contentious nature of soil organic matter. |
| [24] |
Kim SW, Jeong SW, An YJ. 2021. Microplastics disrupt accurate soil organic carbon measurement based on chemical oxidation method. |
| [25] |
Rathnayake D, Schmidt HP, Leifeld J, Bürge D, Bucheli TD, et al. 2024. Quantifying soil organic carbon after biochar application: how to avoid (the risk of) counting CDR twice? |
| [26] |
Li B, Guo Y, Liang F, Liu W, Wang Y, et al. 2024. Global integrative meta-analysis of the responses in soil organic carbon stock to biochar amendment. |
| [27] |
Schmidt HP, Kammann C, Hagemann N, Leifeld J, Bucheli TD, et al. 2021. Biochar in agriculture–a systematic review of 26 global meta-analyses. |
| [28] |
Tian L, Shao G, Gao Y, Song E, Lu J. 2024. Effects of biochar on soil organic carbon in relation to soil nutrient contents, climate zones and cropping systems: a Chinese meta-analysis. |
| [29] |
Lehmann J, Joseph S. 2015. Biochar for environmental management: science, technology and implementation, 2nd edition. London: Routledge. 976 pp doi: 10.4324/9780203762264 |
| [30] |
Wang J, Xiong Z, Kuzyakov Y. 2016. Biochar stability in soil: meta-analysis of decomposition and priming effects. |
| [31] |
Zhang N, Ye X, Gao Y, Liu G, Liu Z, et al. 2023. Environment and agricultural practices regulate enhanced biochar-induced soil carbon pools and crop yield: a meta-analysis. |
| [32] |
Kuppusamy S, Thavamani P, Megharaj M, Venkateswarlu K, Naidu R. 2016. Agronomic and remedial benefits and risks of applying biochar to soil: current knowledge and future research directions. |
| [33] |
Akpinar D, Tian J, Shepherd E, Imhoff PT. 2023. Impact of wood-derived biochar on the hydrologic performance of bioretention media: effects on aggregation, root growth, and water retention. |
| [34] |
Lehmann J, Cowie A, Masiello CA, Kammann C, Woolf D, et al. 2021. Biochar in climate change mitigation. |
| [35] |
Kalu S, Seppänen A, Mganga KZ, Sietiö OM, Glaser B, et al. 2024. Biochar reduced the mineralization of native and added soil organic carbon: evidence of negative priming and enhanced microbial carbon use efficiency. |
| [36] |
Bolan N, Sarmah AK, Bordoloi S, Bolan S, Padhye LP, et al. 2023. Soil acidification and the liming potential of biochar. |
| [37] |
Liu S, Cen B, Yu Z, Qiu R, Gao T, et al. 2025. The key role of biochar in amending acidic soil: reducing soil acidity and improving soil acid buffering capacity. |
| [38] |
Sun Z, Hu Y, Shi L, Li G, Pang Z, et al. 2022. Effects of biochar on soil chemical properties: a global meta-analysis of agricultural soil. |
| [39] |
Jiang X, Haddix ML, Cotrufo MF. 2016. Interactions between biochar and soil organic carbon decomposition: effects of nitrogen and low molecular weight carbon compound addition. |
| [40] |
Smith JL, Collins HP, Bailey VL. 2010. The effect of young biochar on soil respiration. |
| [41] |
Maestrini B, Herrmann AM, Nannipieri P, Schmidt MWI, Abiven S. 2014. Ryegrass-derived pyrogenic organic matter changes organic carbon and nitrogen mineralization in a temperate forest soil. |
| [42] |
Kan ZR, Liu QY, Wu G, Ma ST, Virk AL, et al. 2020. Temperature and moisture driven changes in soil carbon sequestration and mineralization under biochar addition. |
| [43] |
Zhou J, Gui H, Banfield CC, Wen Y, Zang H, et al. 2021. The microplastisphere: biodegradable microplastics addition alters soil microbial community structure and function. |
| [44] |
Yu H, Zhang Z, Zhang Y, Song Q, Fan P, et al. 2021. Effects of microplastics on soil organic carbon and greenhouse gas emissions in the context of straw incorporation: a comparison with different types of soil. |
| [45] |
Zhang GS, Zhang FX. 2020. Variations in aggregate-associated organic carbon and polyester microfibers resulting from polyester microfibers addition in a clayey soil. |
| [46] |
Lehmann J, Gaunt J, Rondon M. 2006. Bio-char sequestration in terrestrial ecosystems – a review. |
| [47] |
Yang L, Shen P, Liang H, Wu Q. 2024. Biochar relieves the toxic effects of microplastics on the root-rhizosphere soil system by altering root expression profiles and microbial diversity and functions. |
| [48] |
Su J, Zhu Y, Chen X, Lu X, Yan J, et al. 2024. Biochar influences polyethylene microplastic-contaminated soil properties and enzyme activities. |
| [49] |
Zhai Y, Bai J, Chang P, Liu Z, Wang Y, et al. 2024. Microplastics in terrestrial ecosystem: exploring the menace to the soil-plant-microbe interactions. |
| [50] |
Qiu M, Liu L, Ling Q, Cai Y, Yu S, et al. 2022. Biochar for the removal of contaminants from soil and water: a review. |
| [51] |
Qiu X, Ma S, Pan J, Cui Q, Zheng W, et al. 2024. Microbial metabolism influences microplastic perturbation of dissolved organic matter in agricultural soils. |
| [52] |
Hale SE, Hanley K, Lehmann J, Zimmerman AR, Cornelissen G. 2011. Effects of chemical, biological, and physical aging as well as soil addition on the sorption of pyrene to activated carbon and biochar. |
| [53] |
Mao J, Zhang K, Chen B. 2019. Linking hydrophobicity of biochar to the water repellency and water holding capacity of biochar-amended soil. |
| [54] |
Chen Y, Wang Z, Sun K, Ren J, Xiao Y, et al. 2024. Biochar and microplastics affect microbial necromass accumulation and CO2 and N2O emissions from soil. |
| [55] |
Chen S, Rotaru AE, Shrestha PM, Malvankar NS, Liu F, et al. 2014. Promoting interspecies electron transfer with biochar. |
| [56] |
Scopetani C, Bellabarba A, Selvolini G, Martellini T, Viti C, et al. 2025. Evaluating additive release from conventional and biodegradable mulch films. |
| [57] |
Uzamurera AG, Wang PY, Zhao ZY, Tao XP, Zhou R, et al. 2023. Thickness-dependent release of microplastics and phthalic acid esters from polythene and biodegradable residual films in agricultural soils and its related productivity effects. |
| [58] |
Neubert KJ, Weihermüller L, Vereecken H, Brüggemann N. 2025. Soil texture governs the influence of different microplastics on soil hydraulic properties. |
| [59] |
Wang Z, Li J, Qu Z, Ayurzana B, Zhao G, et al. 2024. Effects of microplastics on the pore structure and connectivity with different soil textures: based on CT scanning. |
| [60] |
Mia S, Dijkstra FA, Singh B. 2017. Aging induced changes in biochar's functionality and adsorption behavior for phosphate and ammonium. |
| [61] |
Meng F, Yang X, Riksen M, Geissen V. 2022. Effect of different polymers of microplastics on soil organic carbon and nitrogen – a mesocosm experiment. |
| [62] |
Luo L, Lv J, Chen Z, Huang R, Zhang S. 2017. Insights into the attenuated sorption of organic compounds on black carbon aged in soil. |
| [63] |
Brodowski S, Rodionov A, Haumaier L, Glaser B, Amelung W. 2005. Revised black carbon assessment using benzene polycarboxylic acids. |
| [64] |
Wiedemeier DB, Lang SQ, Gierga M, Abiven S, Bernasconi SM, et al. 2016. Characterization, quantification and compound-specific isotopic analysis of pyrogenic carbon using benzene polycarboxylic acids (BPCA). |
| [65] |
Meredith W, Ascough PL, Bird MI, Large DJ, Snape CE, et al. 2012. Assessment of hydropyrolysis as a method for the quantification of black carbon using standard reference materials. |
| [66] |
Cotrufo MF, Boot C, Abiven S, Foster EJ, Haddix M, et al. 2016. Quantification of pyrogenic carbon in the environment: an integration of analytical approaches. |
| [67] |
Perez CN, Carré F, Hoarau-Belkhiri A, Joris A, Leonards PEG, et al. 2022. Innovations in analytical methods to assess the occurrence of microplastics in soil. |
| [68] |
Radford F, Zapata-Restrepo LM, Horton AA, Hudson MD, Shaw PJ, et al. 2021. Developing a systematic method for extraction of microplastics in soils. |
| [69] |
Stewart CE, Paustian K, Conant RT, Plante AF, Six J. 2007. Soil carbon saturation: concept, evidence and evaluation. |
| [70] |
Breure TS, De Rosa D, Panagos P, Cotrufo MF, Jones A, et al. 2025. Revisiting the soil carbon saturation concept to inform a risk index in European agricultural soils. |
| [71] |
Castellano MJ, Mueller KE, Olk DC, Sawyer JE, Six J. 2015. Integrating plant litter quality, soil organic matter stabilization, and the carbon saturation concept. |
| [72] |
Leng L, Zhou J, Zhang W, Chen J, Wu Z, et al. 2024. Machine-learning-aided hydrochar production through hydrothermal carbonization of biomass by engineering operating parameters and/or biomass mixture recipes. |
| [73] |
Shen T, Peng H, Yuan X, Liang Y, Liu S, et al. 2024. Feature engineering for improved machine-learning-aided studying heavy metal adsorption on biochar. |
| [74] |
Boctor J, Hoyle FC, Farag MA, Ebaid M, Walsh T, et al. 2025. Microplastics and nanoplastics: fate, transport, and governance from agricultural soil to food webs and humans. |
| [75] |
Chen Z, Carter LJ, Banwart SA, Pramanik DD, Kay P. 2025. Microplastics in soil–plant systems: current knowledge, research gaps, and future directions for agricultural sustainability. |
| [76] |
Santos LHMLM, Insa S, Arxé M, Buttiglieri G, Rodríguez-Mozaz S, et al. 2023. Analysis of microplastics in the environment: identification and quantification of trace levels of common types of plastic polymers using pyrolysis-GC/MS. |
| [77] |
Thomas D, Schütze B, Heinze WM, Steinmetz Z. 2020. Sample preparation techniques for the analysis of microplastics in soil—a review. |
| [78] |
Lefebvre D, Williams A, Kirk GJD, Meersmans J, Sohi S, et al. 2021. An anticipatory life cycle assessment of the use of biochar from sugarcane residues as a greenhouse gas removal technology. |
| [79] |
Woolf D, Lehmann J, Ogle S, Kishimoto-Mo AW, McConkey B, et al. 2021. Greenhouse gas inventory model for biochar additions to soil. |
| [80] |
IPCC. 2018. Global Warming of 1.5 °C. An IPCC Special Report on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty, eds Masson-Delmotte V, Zhai P, Pörtner HO, Roberts D, Skea J, et al. Cambridge: Cambridge University Press doi: 10.1017/9781009157940 |
| [81] |
Shrestha RK, Jacinthe PA, Lal R, Lorenz K, Singh MP, et al. 2023. Biochar as a negative emission technology: a synthesis of field research on greenhouse gas emissions. |
| [82] |
Smith P. 2016. Soil carbon sequestration and biochar as negative emission technologies. |
| [83] |
Kang Q, Zhang K, Dekker SC, Mao J. 2025. Microplastics in soils: a comprehensive review. |
| [84] |
SAPEA Working Group on Microplastics. 2019. A scientific perspective on microplastics in nature and society. Evidence Review Report No. 4. Berlin: SAPEA doi: 10.26356/microplastics |