scholarly journals Soil Aggregation and Soil Organic Carbon Stabilization: Effects of Management in Semiarid Mediterranean Agroecosystems

2009 ◽  
Vol 73 (5) ◽  
pp. 1519-1529 ◽  
Author(s):  
J. Álvaro-Fuentes ◽  
C. Cantero-Martínez ◽  
M. V. López ◽  
K. Paustian ◽  
K. Denef ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Aggregation ◽  
Carbon Stabilization

Soil organic carbon stabilization in dry tropical forests of Costa Rica

Geoderma ◽  
2009 ◽  
Vol 152 (1-2) ◽  
pp. 95-103 ◽  
Author(s):  
Klaus Lorenz ◽  
Rattan Lal ◽  
Juan J. Jiménez
Keyword(s):  
Costa Rica ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Tropical Forests ◽  
Carbon Stabilization ◽  
Dry Tropical Forests

scholarly journals Soil organic carbon sequestration in soil aggregates in the karst Critical Zone Observatory, Southwest China

2019 ◽  
Vol 65 (No. 5) ◽  
pp. 253-259 ◽  
Author(s):  
Man Liu ◽  
Guilin Han ◽  
Zichuan Li ◽  
Qian Zhang ◽  
Zhaoliang Song
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Southwest China ◽  
Critical Zone ◽  
Soil Aggregation ◽  
Research Station ◽  
Land Uses ◽  
Farmland Abandonment ◽  
Critical Zone Observatory ◽  
Farmland Soils

Soil organic carbon (SOC) sequestration in aggregates under land use change have been widely concerned due to intimate impacts on the sink (or source) of atmospheric carbon dioxide (CO<sub>2</sub>). However, the quantitative relationship between soil aggregation and SOC sequestration under land uses change has been poorly studied. Distribution of aggregates, SOC contents in bulk soils and different size aggregates and their contributions to SOC sequestration were determined under different land uses in the Puding Karst Ecosystem Observation and Research Station, karst Critical Zone Observatory (CZO), Southwest China. Soil aggregation and SOC sequestration increased in the processes of farmland abandonment and recovery. SOC contents in micro-aggregates were larger than those in macro-aggregates in restored land soils, while the opposite results in farmland soils were obtained, probably due to the hindrance of the C-enriched SOC transport from macro-aggregate into micro-aggregate by the disturbance of agricultural activities. SOC contents in macro-aggregates exponentially increased with their proportions along successional land uses. Macro-aggregates accounted for over 80% on the SOC sequestration in restored land soils, while they accounted for 31–60% in farmland soils. These results indicated that macro-aggregates have a great potential for SOC sequestration in karst soils.

Continued No‐Till and Subsoiling Improved Soil Organic Carbon and Soil Aggregation Levels

2014 ◽  
Vol 106 (1) ◽  
pp. 212-218 ◽  
Author(s):  
Shenzhong Tian ◽  
Yu Wang ◽  
Tangyuan Ning ◽  
Na Li ◽  
Hongxiang Zhao ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Aggregation ◽  
No Till

scholarly journals Effects of Biochar on Soil Aggregation and Distribution of Organic Carbon Fractions in Aggregates

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1431
Author(s):  
Ming-Hsi Lee ◽  
Ed-Haun Chang ◽  
Chia-Hsing Lee ◽  
Jyun-Yuan Chen ◽  
Shih-Hao Jien
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Fine Particles ◽  
Dynamic Change ◽  
Soil Aggregation ◽  
Organic C ◽  
Carbon Fractions ◽  
Sequestration Potential ◽  
Aggregation Processes ◽  
Organic Carbon Fractions

Soil aggregates are among crucial factors for determining both the quality and erosion resistance of soils. Biochar is a soil amendment that has seen increasing use to improve specific soil properties, mainly the physical structure and the preserving capacity of water and nutrients, as well as sequestration of soil organic carbon. In this study, we applied the rice husk biochar (RHB) and cattle manure compost (COM) in a sandy loam rural soil, which is widely distributed in southern Taiwan, to investigate the combined effects of the biochar and compost on soil aggregation and dynamic change of organic carbon fractions. Through our incubation experiment, both biochar and compost could promote the soil aggregation after eight weeks incubation. The total amounts of macroaggregates (MaAs, >2.0 mm) and mesoaggregates (MeAs, 0.25–2.0 mm) increased by 1.3–9%. During aggregation processes, a considerably greater amount of the soil organic carbon was found to enrich mainly in MaAs and MeAs in all treatments. The COM addition in the soil further promotes organic carbon enrichment in microaggregates (MiAs, <0.25 mm) + fine particles and MeAs after incubation. Increasing labile organic C (LOC) fractions were significantly found in MaAs and MeAs during aggregation processes, whereas decreasing LOC fractions were found in MiAs. The input of fresh organic matter (RHB and COM) initial acts as binding agents in MiAs, and then further enhances the formation of MeAs and MaAs gradually. In conclusion, RHB promotes the physical protection of organic C by increasing soil aggregation and is hence a management option to enhance the C sequestration potential.

Soil organic carbon stabilization by iron in permafrost regions of the Qinghai-Tibet Plateau

2016 ◽  
Vol 43 (19) ◽  
pp. 10,286-10,294 ◽  
Author(s):  
C. C. Mu ◽  
T. J. Zhang ◽  
Q. Zhao ◽  
H. Guo ◽  
W. Zhong ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Tibet Plateau ◽  
Carbon Stabilization ◽  
Qinghai Tibet Plateau ◽  
Permafrost Regions

scholarly journals Soil Organic Carbon Stabilization in the Three Subtropical Forests: Importance of Clay and Metal Oxides

2019 ◽  
Vol 124 (10) ◽  
pp. 2976-2990 ◽  
Author(s):  
Mengxiao Yu ◽  
Yingping Wang ◽  
Jun Jiang ◽  
Chen Wang ◽  
Guoyi Zhou ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Metal Oxides ◽  
Carbon Stabilization ◽  
Subtropical Forests
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