Enhanced Soil Carbon Stability through Alterations in Components of Particulate and Mineral-Associated Organic Matter in Reclaimed Saline–Alkali Drainage Ditches DOI Creative Commons
Li Q, Yang Gao, Zhen Liu

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 14(4), P. 869 - 869

Published: April 22, 2024

Soil carbon content and stability are primarily influenced by the stabilization of particulate organic matter (POM) mineral-associated (MAOM). Despite extensive research on processes POM MAOM components under various land-use types, investigation into soil remains limited in saline–alkali soils. Therefore, we collected samples from different positions drainage ditches at four reclamation times (the first, seventh, fifteenth, thirtieth year) to determine their physicochemical properties. Moreover, fractions were separated samples, Fourier transform infrared spectra (FTIR) used investigate changes chemical composition. The results showed that with increasing time, total (SOC) contents significantly increased 14 15 2.9 5.5 g kg−1, respectively. In contrast, inorganic decreased 11 9.6 kg−1. Notably, following time observed furrow sole a depth 20–40 cm. While SOC fraction (SOCPOM) significantly, (SOCMAOM) significantly. These alterations largely dominated after instead possible conversion SOCPOM SOCMAOM. FTIR revealed was greatly more than was, but change both contributed an increase stability. Our findings will deepen comprehension offer framework via fractions.

Language: Английский

Depth-Dependent Impacts of Long-Term Vegetation Restoration on Soil Carbon Stability and C/N Stoichiometry in Subtropical Plantations DOI Open Access
Xianwei Song, Lu Yang,

Haiqin Nong

et al.

Forests, Journal Year: 2025, Volume and Issue: 16(1), P. 108 - 108

Published: Jan. 9, 2025

Vegetation restoration has played a significant role in preventing soil erosion and enhancing carbon sequestration the hilly regions of subtropical China. However, under long-term vegetation restoration, it remains unclear how organic nitrogen components synergistically change whether their dynamics are consistent across different depths. This study investigates soils four major types regions: enclosed Masson pine forest (EMP), (MP), slash (SP), mixed broadleaf–conifer (MBC). Soil (SOC) components, physicochemical properties were analyzed depths (0–100 cm) these types. Results showed that type significantly influenced SOC stability. The MBC exhibited highest mineral-associated (MAOC) content, indicating Both SP forests sequestered more iron-aluminum-bound (FeOC) less Ca-associated (CaOC) compared to other dominance FeOC over CaOC acidic highlights critical iron-aluminum oxides SOCSOC stabilization. relationship between topsoil (0–20 cm), but this effect diminished subsoil (>20 cm). confirmed depth-dependent impacts on stability C/N stoichiometry plantations. Targeted strategies can improve

Language: Английский

Citations

0
Response of soil organic carbon stocks and soil microbial biomass carbon to natural grassland conversion: A global meta-analysis DOI

Yijun Cai,

Yuwen Yang,

Jinlin Jiang

et al.

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 965, P. 178481 - 178481

Published: Feb. 1, 2025

Language: Английский

Citations

0
Plant nitrogen-acquisition in response to waterfowl grazing along a hydrological gradient DOI
Xinyue Li, Chaohe Huangfu

Plant and Soil, Journal Year: 2025, Volume and Issue: unknown

Published: March 22, 2025

Language: Английский

Citations

0
Responses of soil carbon, nitrogen, and phosphorus stoichiometry to afforestation of severely desertified land in northern China DOI
Yuqiang Li, Wenjie Cao, Yun Chen

et al.

Ecological Indicators, Journal Year: 2025, Volume and Issue: 175, P. 113520 - 113520

Published: April 25, 2025

Language: Английский

Citations

0
Characteristics of the Soil Organic Carbon Pool in Paddy Fields in Guangdong Province, South China DOI Creative Commons

Lijiang Hu,

Ruikun Zeng,

Jianwu Yao

et al.

Agriculture, Journal Year: 2024, Volume and Issue: 14(9), P. 1457 - 1457

Published: Aug. 26, 2024

To understand the role of paddy soils in global carbon cycle, it is necessary to analyze characteristics organic pool at different soil depths. It was hypothesized that fractions including labile fraction I (LOCF-I), II (LOCF-II), and recalcitrant (ROC) distributed differently within profile. In this study, collected from 27 typical rice fields Guangdong Province, south China. The field were analyzed compared over a 0–60 cm depth relationship between content physical chemical properties further using correlation analysis structural equation modeling. results showed total concentration increased by 22.1% during last four decades. profile, proportion 67.31 70.31% ROC, 21.75 22.06% LOCF-I, 7.7 10.63% recorded, respectively, indicating ROC dominating fraction. Storage all decreased with increase depth. Correlation path nitrogen main driving factor affecting fractions, whereas pH bulk density indirectly affected influencing nitrogen. imply importance management cultivation.

Language: Английский

Citations

1
Enhanced Soil Carbon Stability through Alterations in Components of Particulate and Mineral-Associated Organic Matter in Reclaimed Saline–Alkali Drainage Ditches DOI Creative Commons
Li Q, Yang Gao, Zhen Liu

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 14(4), P. 869 - 869

Published: April 22, 2024

Soil carbon content and stability are primarily influenced by the stabilization of particulate organic matter (POM) mineral-associated (MAOM). Despite extensive research on processes POM MAOM components under various land-use types, investigation into soil remains limited in saline–alkali soils. Therefore, we collected samples from different positions drainage ditches at four reclamation times (the first, seventh, fifteenth, thirtieth year) to determine their physicochemical properties. Moreover, fractions were separated samples, Fourier transform infrared spectra (FTIR) used investigate changes chemical composition. The results showed that with increasing time, total (SOC) contents significantly increased 14 15 2.9 5.5 g kg−1, respectively. In contrast, inorganic decreased 11 9.6 kg−1. Notably, following time observed furrow sole a depth 20–40 cm. While SOC fraction (SOCPOM) significantly, (SOCMAOM) significantly. These alterations largely dominated after instead possible conversion SOCPOM SOCMAOM. FTIR revealed was greatly more than was, but change both contributed an increase stability. Our findings will deepen comprehension offer framework via fractions.

Language: Английский

Citations

0