Organic cropping systems enhance soil health indicators in a Mollisol of the US Corn Belt DOI
Sabrina J. Ruis, John L. Kovar, Kenneth M. Wacha

и другие.

Soil Science Society of America Journal, Год журнала: 2024, Номер 89(1)

Опубликована: Дек. 23, 2024

Abstract Organic cropping systems may potentially improve soil and environmental health relative to simplified conventional due the use of extended crop rotations, perennial crops, animal manure. However, few studies have evaluated impacts organic row on a suite indicators across time. Thus, our objective was assess how system (conventional corn [ Zea mays L.]–soybean Glycine max L.] vs. corn–soybean–oat Avena sativa L.]/alfalfa Medicago L.]–alfalfa pasture) duration management affect surface (soil biological, chemical, physical properties) after 1–9 years in Central Iowa Mollisol. Overall, rotation improved six 14 compared with pasture eight indicators. The included biological indicators, labile C N pools, wet‐aggregate stability, but not or total concentrations. had fewer effects most chemical properties. reduced by 0.35 g kg −1 year ( r = −0.84, n 9, p 0.005), unlike which levels were generally maintained. changes attributed perennials, reductions tillage frequency (during phases), manure, differing plant residue amounts among three systems. In conclusion, can enhance related medium term, fertility under conditions this study.

Язык: Английский

Stabilized microbial necromass in soil is more strongly coupled with microbial diversity than the bioavailability of plant inputs DOI Creative Commons
Gerrit Angst, Šárka Angst, Jan Frouz

и другие.

Soil Biology and Biochemistry, Год журнала: 2024, Номер 190, С. 109323 - 109323

Опубликована: Янв. 19, 2024

Microbial necromass carbon (C) can substantially contribute to stabilized soil organic matter (SOM), and effective management of this C may help mitigate climate change. However, factors important the formation microbial are only partly understood. While bioavailable plant inputs induce by boosting growth use efficiency, other traits, such as those related secretion systems or adhesion motility, also be relevant. These traits independent bioavailability modulated environmental depth site age. Such links, however, have hardly been studied. Here, we used replicated plots European alder (more inputs) Scots pine (less investigate links among inputs, depth, age, community composition, in SOM, i.e., particulate occluded within aggregates (oPOM) mineral-associated (MAOM). We did not find evidence that nor were major drivers formation. Instead, certain taxa, diversity particular, most tightly MAOM. contributed oPOM (up ∼57% stored fraction), a pool considered largely derive from biomolecules. Combined, MAOM accounted for ∼23% bulk contents. Our results imply C-focused research consider constraints on composition diversity, pools than MAOM, plant-derived SOM.

Язык: Английский

Процитировано

17

Interfacial interactions between minerals and organic matter: Mechanisms and characterizations DOI
Tong Yang,

Huiqin Xiang,

Jun Jiang

и другие.

Chemosphere, Год журнала: 2024, Номер 359, С. 142383 - 142383

Опубликована: Май 18, 2024

Язык: Английский

Процитировано

9

Organic carbon and nitrogen accrual evidenced by the underpinning protection mechanisms in soil profile following contrasting 35-year fertilization regimes DOI
Muhammad Abrar, Muhammad Ahmed Waqas, Khalid Mehmood

и другие.

Journal of Environmental Management, Год журнала: 2025, Номер 376, С. 124482 - 124482

Опубликована: Фев. 10, 2025

Язык: Английский

Процитировано

1

Active learning-based random forest algorithm used for soil texture classification mapping in Central Vietnam DOI Open Access

Nguyen Huu Ngu,

Nguyễn Ngọc Thành,

Trần Thanh Đức

и другие.

CATENA, Год журнала: 2023, Номер 234, С. 107629 - 107629

Опубликована: Окт. 31, 2023

Язык: Английский

Процитировано

14

Physicochemical protection is more important than chemical functional composition in controlling soil organic carbon retention following long-term land-use change DOI Creative Commons
Meghan Barnard, Ram C. Dalal, Zhe Weng

и другие.

Geoderma, Год журнала: 2024, Номер 452, С. 117098 - 117098

Опубликована: Ноя. 17, 2024

Язык: Английский

Процитировано

4

Soil carbon tonne-year accounting: Crediting the additional time-integrated amount of carbon captured in soil DOI Creative Commons
Budiman Minasny, Alex B. McBratney

Soil Security, Год журнала: 2024, Номер 15, С. 100153 - 100153

Опубликована: Июнь 1, 2024

Soil organic carbon (SOC) sequestration has become a critical component of climate change mitigation strategies, offering natural and economically viable means to mitigate atmospheric CO2 levels. Current practices in SOC auditing face limitations due the requirement for permanence, which can discourage landholders from participating long-term commitments uncertainties. We propose concept Carbon Tonne-Year as new unit measurement assessing sequestration, focusing on time-integrated amount stored soil. tonne-year measures stock across different operational soil pools (such Mineral Associated Organic Particulate Carbon), each with its own mean residence time. This approach, based physical rather than economic or climatic metrics, aims offer more accurate, flexible, realistic method accounting SOC. Our examples suggest that approach could significantly enhance management flexibility, potentially increasing land value leading sustainable gains over long term.

Язык: Английский

Процитировано

3

The need to update and refine concepts relating to mineral-associated organic matter saturation in soil DOI
Xiaojun Song, Huijun Wu, Shengping Li

и другие.

Soil Biology and Biochemistry, Год журнала: 2024, Номер unknown, С. 109672 - 109672

Опубликована: Ноя. 1, 2024

Язык: Английский

Процитировано

3

Effects of soil compost load on water‐extractable organic matter content and its UV‐ and fluorescence‐based compositional characteristics DOI
Nativ Rotbart, Adi Oren,

Yotam Guetta

и другие.

Soil Science Society of America Journal, Год журнала: 2025, Номер 89(1)

Опубликована: Янв. 1, 2025

Abstract The application of compost increases soil organic matter (SOM) content; however, there is a lack information on the short‐ and long‐term effects dynamics labile SOM pools in compost‐amended soils semiarid region. goal this study to distinguish between parameters that can be used for investigating accumulative are sensitive short‐term changes but diminish with time. To address goal, we focused (1) rates contents microbial biomass carbon (MBC), cold water‐extractable (WEOC), hot (HWEOC), respectively, (2) composition WEOC HWEOC characterized using (i) absorbance at 254 nm (Abs ) representing presence aromatic components (ii) fluorescence spectroscopy excitation–emission matrices coupled parallel factor analysis. Soil samples were taken from field experiment region, which investigated annual load cattle manure‐based (at 0, 20, 40, or 60 m 3 ha −1 year properties crop performance. C concentrations water extracts found indicators compost‐load effect content. Compost dose had strong (2 weeks) impact MBC, no (over months years) was observed. Of variables examined short term, WEOC, Abs values most responsive load. proportion fluorescent constituents out decreased dose. UV‐ fluorescence‐spectroscopy useful means characterize influence

Язык: Английский

Процитировано

0

Long-term fertilization promotes the microbial-mediated transformation of soil dissolved organic matter DOI Creative Commons

Mingming Xia,

Pengfa Li, Jia Liu

и другие.

Communications Earth & Environment, Год журнала: 2025, Номер 6(1)

Опубликована: Фев. 16, 2025

Язык: Английский

Процитировано

0

Soil Carbon Saturation: What Do We Really Know? DOI Creative Commons
Katerina Georgiou, Denis A. Angers, Ryan E. Champiny

и другие.

Global Change Biology, Год журнала: 2025, Номер 31(5)

Опубликована: Май 1, 2025

ABSTRACT Managing soils to increase organic carbon storage presents a potential opportunity mitigate and adapt global change challenges, while providing numerous co‐benefits ecosystem services. However, differ widely in their for sequestration, knowledge of biophysical limits accumulation may aid informing priority regions. Consequently, there is great interest assessing whether exhibit maximum capacity storing carbon, particularly within organo–mineral associations given the finite nature reactive minerals soil. While concept soil saturation has existed over 25 years, recent studies have argued against its importance. Here, we summarize conceptual understanding at both micro‐ macro‐scales, define key terminology, address common concerns misconceptions. We review methods used quantify saturation, highlighting theory caveats each approach. Critically, explore utility principles accumulation, vulnerability loss, representations process‐based models. highlight gaps propose next steps furthering our mechanistic implications management.

Язык: Английский

Процитировано

0