231 results for group: journal-article

Calcium-rich parent materials enhance multiple soil functions and bacterial network complexity

Peilei Hu, Wei Zhang, Wolfgang Wanek, Ji Chen, Diego Abalos, Jie Zhao, Dan Xiao, Xinyu Hou, Juan Li, Hongsong Chen, Jun Xiao, Xionghui Liao, Tiangang Tang, Hanqing Wu, Kelin Wang ABSTRACT: Parent material shapes soil properties, yet its effects on soil functions and microbial networks remain unclear. Here we investigate these relationships using a large-scale field survey comparing soils derived from calcium-rich carbonate rocks and calcium-poor clastic rocks, complemented by a microcosm experiment. Soils from calcium-rich parent materials contained 33% higher organic carbon, 58% higher total nitrogen, and 55% higher total phosphorus than calcium-...

Valorization of mineral by-products through soil remineralization enhances sustainable agriculture and circular economy outcomes

Hugo Hernández Palma, Anderson Isaías Nieto Granados, Alcindo Neckel, Diana Pinto Osorio, Andrea Liliana Moreno Ríos, Claudete Gindri Ramos ABSTRACT: Soil remineralization using rock powders derived from mining and industrial by-products has gained attention as a sustainable strategy to restore degraded soils, improve fertility, and reduce reliance on synthetic fertilizers. These materials, rich in nutrients and beneficial minerals, also offer potential for carbon sequestration and contribute to circular economy practices by repurpose byproducts into agricultural inputs. This review aims to critically synthesize the current state of research on ...

Optimizing nutrient stoichiometry for enhanced carbon sequestration in agricultural soils

Munazza Yousra, Qaiser Hussain, Khalid Saifullah Khan, Sair Sarwar, Muhammad Mahmood-ul-Hassan ABSTRACT: Nutrients like nitrogen (N), phosphorus (P), and sulphur (S) play a critical role in plant and microbial growth, as well as in stabilizing soil organic carbon (SOC). Humus, the most stable fraction of soil organic matter (SOM), maintains a consistent elemental ratio of C:N:P:S at 10,000:833:200:143. To evaluate how variations in this humus based C:N:P:S ratio affect SOC stabilization, a six-month laboratory incubation was conducted using selected benchmark soil series. The soils were amended with wheat straw (WS) and maize straw (MS), both with ...

Leveraging ecosystems responses to enhanced rock weathering in mitigation scenarios

Yann Gaucher, Katsumasa Tanaka, Daniel J. A. Johansson, Daniel S. Goll, Philippe Ciais ABSTRACT: Carbon dioxide removal (CDR) is deemed necessary to attain the Paris Agreement’s climate objectives. While bioenergy with carbon capture and storage (BECCS) has generated substantial attention, sustainability concerns have led to increased examination of alternative strategies, including enhanced rock weathering (EW). We analyse the role of EW under cost-effective mitigation pathways, by including the CDR potential of basalt applications from silicate weathering (geochemical CDR) and enhanced ecosystem growth and carbon storage in response to phospho...

Bridging time lags in durable carbon removal on working lands

Noah J. Planavsky, Beck J. Woollen, Ella Milliken, Mojtaba Fakhraee, David J. Beerling, Christopher T. Reinhard ABSTRACT: Enhanced weathering and biochar application on working lands show promising signs of delivering durable carbon dioxide removal required to meet internationally agreed upon climate change mitigation goals. Although both technologies can scale comparatively quickly, their ability to offset radiative forcing from anthropogenic greenhouse gas emissions is delayed by time lags between deployment and realized carbon removal. Here, we suggest that coupling enhanced weathering and biochar with point-source methane emissions reductions ...

Atmospheric carbon dioxide mineralisation in anthropogenically-derived carbonate deposits

John MacDonald, Charlotte Slaymark, Amanda Stubbs, Marta Kalabová ABSTRACT: Removing carbon dioxide from the atmosphere is important in minimising the impact of anthropogenically-induced climate change. Anthropogenic geomaterials, such as slag and cement, can be utilised in an engineered context for mineralising CO2. However, such anthropogenic geomaterials, typically waste products, were usually deposited on the land surface and left to passively mineralise CO2, resulting in the formation of anthropogenic carbonates. In this study, we document anthropogenic carbonates from a suite of locations across Scotland and Northern England, and use stable ...

Efficient denitrification and N2O mitigation in low-C/N wastewater treatment by promoting TCA cycle anaplerosis via glyoxylate shunt regulation

Haojin Peng, Qingran Zhang, Yu Su, Shuai Wang, Yinguang Chen   ABSTRACT: Conventional biodenitrification for water with a low carbon-to-nitrogen ratio (C/N) demands exogenous carbon, exacerbating carbon consumption and emissions. Here we propose a metabolic reprogramming strategy leveraging Mo(VI)–Fe(III)–Cu(II) synergy to redirect carbon flux through the glyoxylate shunt (GS), enhancing tricarboxylic acid cycle anaplerosis for efficient denitrification and reduced greenhouse gases during low-C/N wastewater treatment. At a C/N of 3, Mo(VI)–Fe(III)–Cu(II) promoted carbon metabolism by the tricarboxylic acid cycle in Paracoccus ...

An Analysis of Soil CO₂ Efflux and Leachate Alkalinity Data

Dirk Paessler, Jens Hammes, Anna Anke Stöckel, Ralf Steffens, Ingrid Smet ABSTRACT: In order to better understand Enhanced Weathering (EW) we ran an extensive greenhouse experiment with more than 400 pots with grass plants (Lollium perenne) for 24 months throughout 2023-2024. Every month we measured multiple parameters in the soil leachate water (total alkalinity (TA), pH, electrical conductivity (EC), and cations) as well as soil CO₂ effluxes. With a focus on carbon transport we present here the data from 67 rock-soil variations with 4 replicates each, based on the lab results from 6,500 leachate samples and almost 1 million CO₂ efflux ...

Divergent responses of carbon and nitrogen functional genes composition to enhanced rock weathering

Qiong Chen, Daniel S. Goll, Mardin Abdalqadir, Xinjian He, Guochen Li, Boyuan Bi, Tongtong Xu, Chenlu Li, Yanlong Chen, Xiulian Ma, Zhenxin Li, Yunting Fang, Zhanqing Hao & Zuoqiang Yuan ABSTRACT: Enhanced rock weathering (ERW) is a scalable strategy for atmospheric carbon dioxide removal. The microbiome function critically regulates the below-ground cycle of carbon and nitrogen in terrestrial ecosystems. However, microbial functioning related to carbon and nitrogen under ERW remains elusive. Here we investigated how wollastonite addition affects key microbial carbon and nitrogen-cycles genes investigated using metagenomic, in a tropic rubber ...

Limited carbon sequestration potential from global ecosystem restoration

Csaba Tölgyesi, Nándor Csikós, Vicky M. Temperton, Elise Buisson, Fernando A. O. Silveira, Caroline E. R. Lehmann, Péter Török, Zoltán Bátori, Ákos Bede-Fazekas ABSTRACT: Ecosystem restoration is increasingly recognized as a means of climate change mitigation. Recent global-scale studies have suggested that ecosystem restoration could offset a substantial fraction of human carbon emissions since the Industrial Revolution. However, global carbon sequestration potential remains uncertain due to the tree-centric view of some models and difficulties in modelling restoration across different ecosystem types. Here we applied a model-based ...