Organic Carbon Sequestration and Ecosystem Service of Indian Tropical Soils

Pal, Dilip Kumar

doi:10.1007/978-3-030-22711-1_3

Cited by 2 publications

(6 citation statements)

References 51 publications

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“…Thus, according to the mineralogical criteria of (Smith 1986), kaolinitic mineralogy class is assigned to them (Bhattacharyya 15 Utisols: A sink for enhancing carbon sequestration et al 2009). This is however, not compatible with their unique capacity to sequester OC (Pal 2019). The total acidity of these soils as determined by BaCl -TEA shows 2 a much higher values than determined by 1 N KCl.…”

Section: Soc Enrichment In Ultisolsmentioning

confidence: 61%

“…The total acidity of these soils as determined by BaCl -TEA shows 2 a much higher values than determined by 1 N KCl. The CEC of soils and their clays as determined by the sum of total acidity and extractable bases measured by 1 N NH OAc (pH 7) show values much higher than 16 and 4 12, respectively (Chandran et al 2005;Pal 2017bPal , 2019. Such greater values indicate their mixed mineralogy class and thus justify the unique role of clay minerals with hydroxy-interlayering in OC sequestration in soils.…”

Section: Soc Enrichment In Ultisolsmentioning

confidence: 94%

“…In contrast, zeolitic and acidic Vertisols (Typic Haplusterts) and Mollisols (Vertic Haplustoll/ Argiudolls) of HT climate show a similar value or an increase in OC content ~1% and 2.0%, respectively (Bhattacharyya et al 2006) even in the dominance of kaolin mineral. (Barre et al 2014) and (Pal 2019) point out the impact of phyllosilicate mineralogy on SOC protection, and therein highlight the importance of shortrange order (SRO) minerals, metallic oxides and hydroxides and carbonates in SOC protection. In HT and 12 cmol (p+) kg , respectively.…”

Section: Soc Enrichment In Ultisolsmentioning

confidence: 99%

“…Recent research suggests that a better turnover rate of OC in Ultisols of tropical ecosystems is because of the interaction between the disproportionally large amount of organic matter and reactive species of Al oxides and hydroxides (Souza et al 2017). However, a significant role of Fe and Al oxides/hydroxides in hydroxy-interlayering of smectite and vermiculite is evident from the predominance of hydroxy-interlayered smectite (HIS) and vermiculite (HIV) and kaolin in Ultisols (Pal 2017b(Pal , 2019. Therefore, the simultaneous formation of HIV, HIS and kaolin through hydroxy-interlayering, and retention of high amount of OC by such oxides and hydroxides is fascinating.…”

Section: Soc Enrichment In Ultisolsmentioning

confidence: 99%

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Ultisols with Unique Soil Properties and their Implications in Carbon Enhancement Strategies for Indian Tropical Soils

Pal,

Chandran,

Paul

et al. 2023

agroped

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Million years old Ultisols, developed as an end stage of advance soil weathering on base-poor rock systems under forest and plantation crops of the Indian sub-continent, are enriched with organic carbon (OC). Despite their remarkable acid chemical reaction, they show an upward increase in extractable bases (EB) and base saturation (BS) in the pedon, and on some occasion BS > 35% in surface horizons. Recent research suggests that the litter falls from forest species provide bases on soil surface, which causes similar depth distribution of EB and BS in Andisols of Nilgiri Hills of humid tropical southern India, developed on pre-weathered lateritic materials consisting primarily of Fe and Al oxides/ hydroxides. Under similar humid tropical (HT) climate in protected rain forest, million years old OC rich soils of Andaman and Nicobar Islands, developed on base-poor rock systems, have similar chemical and clay mineralogical properties of Ultisols except however their EB and BS, which are more than 10% and much above 50%, respectively and therefore, they are acidic Alfisols. Formation of Alfisols on the Island is a unique example on the formidable role of vegetation in soil formation, suggesting that if inland Ultisols are kept under natural protected forest ecosystem, they may phase towards Alfisols thereby facilitating OC sequestration and perform other ecosystem functions. The preservation of natural or semi-natural ecosystems is thus essential to raise the OC stocks of soils, which would help to gain various ecological benefits.

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Section: Soc Enrichment In Ultisolsmentioning

confidence: 61%

Section: Soc Enrichment In Ultisolsmentioning

confidence: 94%

Section: Soc Enrichment In Ultisolsmentioning

confidence: 99%

Section: Soc Enrichment In Ultisolsmentioning

confidence: 99%

See 2 more Smart Citations

Ultisols with Unique Soil Properties and their Implications in Carbon Enhancement Strategies for Indian Tropical Soils

Pal,

Chandran,

Paul

et al. 2023

agroped

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“…The change of clay‐OC storage was much larger than that of other fractions (LF, sand, silt) in all treatments, suggesting that the gain in SOC due to residue return was mostly stored and more stable in the clay fraction. The cation exchange capacity (CEC) was considered as an important factor, which contributed to the SOC change after residue return, especially in clay‐OC storage (Pal, 2019). In our present study, no difference in CEC was observed among different treatments and layers.…”

Section: Discussionmentioning

confidence: 99%

Tillage and cropping effects on soil organic carbon: Biodegradation and storage in density and size fractions

Zhang

Gregorich

et al. 2020

European J Soil Science

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Improvements in management practices can prevent the decline of soil organic carbon (SOC) storage caused by conventional tillage practice in Northeast China. Density and size fractionation can track the transformation of plant residue into SOC and its location in the soil matrix. We used a long-term field study in China to evaluate these changes as a result of improved management involving tillage and cropping systems. Experimental treatments included notill (NT) and mouldboard ploughing (MP) under monoculture maize (Zea mays L.) (MM) and maize-soybean (Glycine max Merr.) rotation (MS); these were compared to the traditional management involving conventional tillage (CT) under MM. An incubation study was conducted to evaluate mineralization and the biodegradability of SOC. The soils were also physically fractionated by density (light fraction, LF) and size (sand, silt and clay). With improved management, the SOC storage in the clay size fraction showed the largest increase across all fractions. This increase was greater for MS than MM. The NTMS treatment resulted in a decline in silt-OC storage compared to CTMM. The SOC mineralization (mg CO 2-C g −1 soil) was affected by tillage and driven by LF-OC and was observed in the order: NTMM (2.06) > MPMM (1.72) ≈ NTMS (1.71) > CTMM (1.52) ≈ MPMS (1.41). Both cropping and depth affected the biodegradability of SOC. Considering the plough layer (0-20 cm), treatments under MM had a larger proportion of biodegradable SOC than those under MS. We conclude that the significant differences in SOC storage in physical fractions and SOC biodegradation were caused by differences in soil management. Highlights • Clay size fraction showed the largest increase in SOC storage when residue was returned. • Silt size fraction lost SOC in no-till maize-soybean compared with traditional farming practice. • Potential SOC mineralization depended on quantity of SOC in the LF. • Biodegradability of the SOC was driven by cropping system not tillage.

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Organic Carbon Sequestration and Ecosystem Service of Indian Tropical Soils

Cited by 2 publications

References 51 publications

Ultisols with Unique Soil Properties and their Implications in Carbon Enhancement Strategies for Indian Tropical Soils

Ultisols with Unique Soil Properties and their Implications in Carbon Enhancement Strategies for Indian Tropical Soils

Tillage and cropping effects on soil organic carbon: Biodegradation and storage in density and size fractions

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