Comment on egusphere-2023-2221 DOI Creative Commons
Johan Six, Sebastian Döetterl, Moritz Laub

et al.

Published: Dec. 22, 2023

Abstract. The concept of soil organic carbon (SOC) saturation emerged a bit more than 2 decades ago as our mechanistic understanding SOC stabilization increased. Recently, the further testing across wide range types and environments has led some people to challenge fundamentals C saturation. Here, we argue that test concept, one should pay attention 6 fundamental principles or rights (R’s): right measures, units, fractionation method, type, mineralogy, level. Once take care those studies, find maximum stabilized by minerals estimate based on current data available this is around 82 ± 4 g kg-1 silt+clay for 2:1 clay dominated soils while most likely only 46 1:1 soils. These estimates can be improved using data, especially different mineralogies varying environmental conditions. However, bigger how which sequestration strategies implement in order effectively reach 82/46 globe. In recent years, several studies (e.g., Begill et al. 2023; Salonen 2023) have questioned (C) saturation, i.e., (Hassink, 1997; Six 2002). want draw six think cognizant about when “testing” “questioning”

Language: Английский

The six rights of how and when to test for soil C saturation DOI Creative Commons
Johan Six, Sebastian Döetterl, Moritz Laub

et al.

SOIL, Journal Year: 2024, Volume and Issue: 10(1), P. 275 - 279

Published: April 15, 2024

Abstract. The concept of soil organic carbon (SOC) saturation emerged a bit more than 2 decades ago as our mechanistic understanding SOC stabilization increased. Recently, the further testing across wide range types and environments has led some people to challenge fundamentals C saturation. Here, we argue that, test this concept, one should pay attention six fundamental principles or “rights” (R's): right measures, units, dispersive energy application, type, clay level. Once take care those rights studies, find maximum stabilized by minerals estimate based on current data available that is around 82 ± 4 g kg−1 silt + for : 1-clay-dominated soils while most likely being only 46 1 soils. These estimates can be improved using data, especially different varying environmental conditions. However, bigger matter which sequestration strategies implement how them in order effectively reach 82/46 globe.

Language: Английский

Citations

11
High organic carbon content constricts the potential for stable organic carbon accrual in mineral agricultural soils in Finland DOI Creative Commons
Helena Soinne, Matti Hyyrynen, Medilė Jokubė

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 352, P. 119945 - 119945

Published: Jan. 12, 2024

Sequestering carbon into agricultural soils is considered as a means of mitigating climate change.We used agronomic soil test results representing c. 95% the farmed land area in Finland to estimate potential uppermost 15 cm layer mineral sequester organic (OC) and contribute mitigation change.The estimation maximum capacity matter protect OC stable mineral-associated form was based on theory that clay fine-sized (fines = + silt) particles have limited OC.In addition, we clay/OC fines/OC ratios identify areas with risk erosion reduced productivity, thus indicating priority potentially benefitting from increased contents.We found 32-40% further accumulate (MOC), while majority soils, current stock exceeded OC.The nationwide sequestration ranged between 0.21 0.26 Tg, which corresponds less than 2% annual greenhouse gas emissions Finland.The fields highest for SOC accrual were southern southwestern parts country, including some most intensively cultivated high-clay soils.Although additional estimated be relatively small, storage Finnish arable (0-15 cm) large, 128 Tg.Farming practices enabling input play an important role tool loss high-OC changing climate.Furthermore, especially MOC accrual, efforts increase could help improve structural stability therefore reduce nutrients aquatic environments.

Language: Английский

Citations

9
Manure increases soil organic carbon most when allocated to annual cropping DOI Creative Commons
Juuso Joona, Eero Liski, Helena Kahiluoto

et al.

CATENA, Journal Year: 2024, Volume and Issue: 238, P. 107844 - 107844

Published: Jan. 26, 2024

Soil carbon sequestration has a great potential in climate change mitigation. To maximise stocks northern agricultural soils, the determinants of manure application are crucial. We quantified effect on soil organic (SOC) depending rate, proportion leys relative to annuals crop rotation, and texture. compared steady-state SOC concentration under farm-yard control treatment with no based 56 individual long-term experiments at 27 locations north 50 degrees latitude. At low rate such as 0.7 Mg C/ha/y, gradually increased increasing ley proportions. moderate 1.3 an increase led decreasing growth of, or even decrease in, SOC. fixed rotation 20 %, linearly rate. As increased, saturation occurred certain When sandy soils more than once out seven years clay was higher 45 accrual. Compared absence application, high rates decreased conclude that maximises accrual topsoil. The most effective regard landscape can be determined using statistical model we developed, management system

Language: Английский

Citations

4
Exploring the effects of soil structure, nutrients, and farm management on crop root biomass and depth distribution DOI Creative Commons
Tuomas Mattila, Laura Häkkinen

Field Crops Research, Journal Year: 2025, Volume and Issue: 327, P. 109909 - 109909

Published: April 12, 2025

Language: Английский

Citations

0
STUDIES ON SOIL STRESS VIA COMPUTER SIMULATION: IMPACT OF TIRE INFLATION PRESSURE DOI Creative Commons
Renato Paiva de Lima, Diego Alexander Aguilera Esteban, Roberta Q. Cavalcanti

et al.

Engenharia Agrícola, Journal Year: 2025, Volume and Issue: 45(spe1)

Published: Jan. 1, 2025

ABSTRACT Soil compaction configures a major threat to soil structural quality. Mitigating induced by agricultural machinery involves knowing the state of stress transmission in which turn is affected tire inflation pressure. Hence, this study evaluated impact three pressure levels from sugarcane harvesting truck on propagation. Using 'PredComp' computational model and machine parameters, simulations were performed for 70, 100 130% recommended corresponded, respectively, pressures 350, 500, 650 kPa. Size contact area decreased as increased, yielding values 0.13 m2, 0.12 m2 0.11 m2; whereas maximum center tires increased 465, 623 784 kPa pressure, respectively. The propagated at layers 10 or 30 cm deep −5% 70% +5% relation reference (100%). Our indicate that increase can tire-soil interface thereby increasing mechanical stresses topsoil subsoil approximately 5%, increases risk if exceed load-bearing capacity.

Language: Английский

Citations

0
Upper limit of mineral-associated organic carbon in temperate and sub-tropical soils: How far is it? DOI
Francisco Matus, Fernando Paz Pellat, Sara Covaleda

et al.

Geoderma Regional, Journal Year: 2024, Volume and Issue: 37, P. e00811 - e00811

Published: May 14, 2024

Language: Английский

Citations

3
Soil organic carbon fractions and storage potential in Finnish arable soils DOI Creative Commons
Anna‐Reetta Salonen, R.G.M. de Goede, Rachel Creamer

et al.

European Journal of Soil Science, Journal Year: 2024, Volume and Issue: 75(4)

Published: July 1, 2024

Abstract Understanding the factors affecting total amount and distribution of soil organic carbon (OC) across different functional pools is important to better define future management OC stocks. The interactions between practices, local physicochemical properties climate are essential for determining content soil. Nevertheless, how these affect its pools, i.e., more labile particulate (POC) stable mineral‐associated (MAOC) carbon, only partly known. In this study, we assessed topsoil (0–20 cm) samples from 93 arable farms in southern half Finland determine OC, MAOC POC, along with relevant (amount clay silt, aluminium iron oxides pH), (precipitation temperature) fertilization (mineral versus organic). did not (12–58 g kg −1 soil). share fraction (on average 86% OC) was relatively large range contents (2%–68%). We highest feasible soils boundary line analyses their saturation state Hassink's equation (Hassink, 1997). Only lowest (<10% clay) were assumed be carbon‐saturated, suggesting that most studied have a capacity accrue MAOC. Simple linear regression showed clay, explained 9%, 21% 22% variation MAOC, respectively. Multiple including clay+silt, oxides, pH, type fertilization, precipitation temperature as explanatory variables 33%–53% all soils, variable whereas Fe significant higher (>30%). low (<30%), pH had added value explaining Altogether, it seems various climatic, edaphic management‐related context‐dependently controlling textural information alone necessarily an adequate predictor assess

Language: Английский

Citations

2
Storage and persistence of organic carbon in the upper three meters of soil under arable and native prairie land use DOI
Christopher O. Anuo, Lidong Li, Kimber Moreland

et al.

Plant and Soil, Journal Year: 2024, Volume and Issue: unknown

Published: July 25, 2024

Language: Английский

Citations

2
The six rights of how and when to test for soil C saturation DOI Creative Commons
Johan Six, Sebastian Döetterl, Moritz Laub

et al.

Published: Nov. 7, 2023

Abstract. The concept of soil organic carbon (SOC) saturation emerged a bit more than 2 decades ago as our mechanistic understanding SOC stabilization increased. Recently, the further testing across wide range types and environments has led some people to challenge fundamentals C saturation. Here, we argue that test concept, one should pay attention 6 fundamental principles or rights (R’s): right measures, units, fractionation method, type, mineralogy, level. Once take care those studies, find maximum stabilized by minerals estimate based on current data available this is around 82 ± 4 g kg-1 silt+clay for 2:1 clay dominated soils while most likely only 46 1:1 soils. These estimates can be improved using data, especially different mineralogies varying environmental conditions. However, bigger how which sequestration strategies implement in order effectively reach 82/46 globe. In recent years, several studies (e.g., Begill et al. 2023; Salonen 2023) have questioned (C) saturation, i.e., (Hassink, 1997; Six 2002). want draw six think cognizant about when “testing” “questioning”

Language: Английский

Citations

6
Reply on RC2 DOI Creative Commons
Johan Six

Published: Feb. 2, 2024

Abstract. The concept of soil organic carbon (SOC) saturation emerged a bit more than 2 decades ago as our mechanistic understanding SOC stabilization increased. Recently, the further testing across wide range types and environments has led some people to challenge fundamentals C saturation. Here, we argue that test concept, one should pay attention 6 fundamental principles or rights (R’s): right measures, units, fractionation method, type, mineralogy, level. Once take care those studies, find maximum stabilized by minerals estimate based on current data available this is around 82 ± 4 g kg-1 silt+clay for 2:1 clay dominated soils while most likely only 46 1:1 soils. These estimates can be improved using data, especially different mineralogies varying environmental conditions. However, bigger how which sequestration strategies implement in order effectively reach 82/46 globe. In recent years, several studies (e.g., Begill et al. 2023; Salonen 2023) have questioned (C) saturation, i.e., (Hassink, 1997; Six 2002). want draw six think cognizant about when “testing” “questioning”

Language: Английский

Citations

0