Effects of temperature on soil organic carbon fractions contents, aggregate stability and structural characteristics of humic substances in a Mollisol

Wang, Yong; Gao, Shumei; Li, Cuilan; Zhang, Jinjing; Wang, Lichun

doi:10.1007/s11368-016-1379-4

Cited by 55 publications

(32 citation statements)

References 44 publications

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“…Previous studies found that OM addition promoted the formation of large and small macroaggregates (Mamedov et al, 2014; Wang et al, 2016; Zhao et al, 2018). In present research, the application of OM all improved the proportion of >0.25 mm aggregates and decreased the proportion of <0.25 mm aggregates (Figures 5 and 6a).…”

Section: Discussionmentioning

confidence: 93%

Partial substitution of rice husks for manure in greenhouse vegetable fields: Insight from soil carbon stock and aggregate stability

Chao

Zhang

et al. 2021

Land Degrad Dev

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Soil aggregate stability and C stock are key factors in greenhouse vegetable production, which are influenced by the application of different organic materials. However, the responses of soil aggregate stability and C stock to organic amendment in greenhouse vegetable fields are not well understood. A 5‐year study was carried out in greenhouse vegetable fields to investigate the effect of partial substitution of rice husks for manure on soil aggregate stability, C compositions, and their relationships. Four treatments included: (a) no organic fertilization (control), (b) 30 t ha−1 chicken manure (CM), (c) 30 t ha−1 rice husks (RH), and (d) 10 t ha−1 chicken manure plus 20 t ha−1 rice husks (MR). Rice husks addition significantly increased the proportion of >2 mm aggregates and mean weight diameter (MWD), while manure addition showed no difference with control. Polysaccharide and humin (HM) were increased with rice husks addition (RH and MR) compared with that in CM treatment. Polysaccharide and HM caused 86.03% variation of soil aggregate, in which polysaccharide and HM contributed 76.3 and 9.7%, respectively. The soil C stock in CM, RH, and MR treatments was increased by 146, 175, and 164% compared with control, respectively. Aliphatic‐C and amorphous Fe‐oxides (Fe‐ox) content were as higher in MR added soil than those in RH treatment. Partial substitution of rice husk for manure improved soil aggregation stability and thus enhanced C stock by suppling more polysaccharide, HM and liberated soil minerals, which was conducive to the sustainable development in greenhouse vegetable production.

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Section: Discussionmentioning

confidence: 93%

Partial substitution of rice husks for manure in greenhouse vegetable fields: Insight from soil carbon stock and aggregate stability

Chao

Zhang

et al. 2021

Land Degrad Dev

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“…Soil represents one of the most important terrestrial carbon (C) pools (Doetterl et al, 2015;Rodríguez-Murillo, 2001) and constitutes the largest C pool in the terrestrial ecosystem (Wang, Wang, Zhang, & Zhao, 2015). Soil organic carbon (SOC) is a major C pool for global C cycling and is critical for the regulation of atmospheric CO 2 concentration (Li & Zhao, 2001) that affects global warming (Han, Zhang, Wang, Sun, & Huang, 2016;Stockmann et al, 2013;Wang, Gao, Li, Zhang, & Wang, 2016). Large SOC levels in high altitude areas have attracted great interest (Davidson & Janssens, 2006).…”

Section: Introductionmentioning

confidence: 99%

Controls on variation of soil organic carbon concentration in the shrublands of the north‐eastern Tibetan Plateau

Nie

Wang

Yang

et al. 2021

European J Soil Science

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Assessment of soil organic carbon (SOC) concentration in high-altitude shrublands is essential for understanding C dynamics in terrestrial ecosystems. Hence, we investigated the SOC concentration and its influencing factors using 198 soil profiles (0-100 cm) from 66 sites between 2011 and 2013 in the northeastern Tibetan Plateau shrublands. SOC concentration was different under Highlights • SOC concentration was different under different shrubland types, whereas SOC concentration showed limited increases with altitude.• Compared with MAT, a correlation between MAP and variation in SOC concentration was larger.• Soil pH seems to be a robust factor that had a significant negative correlation with SOC concentration • Soil pH was also important for regulating a correlation between climatic condition and variation in SOC concentration.

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“…However, the high rates of successive planting and removal of crop residues deplete soil organic carbon and lead to soil degradation (Zhao et al, 2019). In addition, elevated greenhouse temperatures, extensive use of chemical fertilizers and high irrigation frequencies have negative impacts on soil aggregation and aggregate stability in greenhouse vegetable production systems (Wang et al, 2016). Consequently, soil degradation has become a core problem that affects the sustainable and green development of greenhouse vegetable cultivation (Pratiwi et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Multivalent metals also play profoundly important roles in the stability and size distribution of soil aggregates (Wang et al, 2016). Polycrystalline and amorphous iron is more effective than free iron in stabilizing soil aggregates (Klotzbücher et al, 2013;Wen et al, 2019;Guo et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…The effects and mechanisms of fertilization on stability and size distribution of soil aggregates have been well documented although these studies have primarily focused on the open field crop planting system (Wang et al, 2016;Zhao et al, 2017). Less is known about the responses of stability and size distribution of soil aggregates to the long-term application of organic materials in greenhouse vegetable cultivation soil.…”

Section: Introductionmentioning

confidence: 99%

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Soil aggregate stability and carbon fractions in soils containing organic matter additions in intensive greenhouse vegetable fields

fei¹,

Ding²,

Zhang³

et al. 2020

Preprint

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Soil degradation in intensive greenhouse vegetable fields is a major agricultural concern since these soils are widely used for food production. Organic materials play essential roles in soil aggregate stability and carbon sequestration. We conducted a 5-year fertilization study in intensively farmed greenhouse vegetable fields to examine the effects of added organic matter on soil aggregate stability, organic carbon fractions and their interrelationships. Four experimental treatments were included: 1) mineral fertilizer only (CK); 2) mineral fertilizer combined with chicken manure (CM); 3) rice husks (RH); and 4) chicken manure plus rice husks (MH). These organic materials applications significantly improved the proportion of > 0.25 mm aggregates while decreasing the ratio of soil < 0.25 mm aggregates. The mean weight diameters of water-stable soil aggregates was increased with organic fertilizer addition and were ranked RH [?] MH > CM > CK. The organic materials applications treatments had a greater soil organic matter, humic acid and humus than the CK. RH addition significantly increased the proportion of >2 mm aggregates, possibly due to higher humus and polysaccharide carbon content. CM application increased soil Fe-ox content due to soil acidification and increased aliphatic carbon content that in turn increased the proportion of 1-2 mm aggregates. The study indicated a possible advantage for chicken manure and rice husk incorporation for the generation and persistence of stable soil aggregates.

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Effects of temperature on soil organic carbon fractions contents, aggregate stability and structural characteristics of humic substances in a Mollisol

Cited by 55 publications

References 44 publications

Partial substitution of rice husks for manure in greenhouse vegetable fields: Insight from soil carbon stock and aggregate stability

Partial substitution of rice husks for manure in greenhouse vegetable fields: Insight from soil carbon stock and aggregate stability

Controls on variation of soil organic carbon concentration in the shrublands of the north‐eastern Tibetan Plateau

Soil aggregate stability and carbon fractions in soils containing organic matter additions in intensive greenhouse vegetable fields

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