Long-term management effects on organic C and N pools and activities of C-transforming enzymes in prairie soils

Katsalirou, Eirini; Deng, Shiping; Nofziger, D. L.; Gerakis, Argyrios

doi:10.1016/j.ejsobi.2010.06.004

Cited by 39 publications

(17 citation statements)

References 30 publications

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“…Soil microbial community was expected to change with root density, plant species and diversity, soil water content (Brockett et al, 2012), and SOC (Katsalirou, Deng, Nofziger, & Gerakis, 2010), but these factors in the present study did not significantly differ between treatments. Given gap formation resulted from thinning is known to stimulate understory plants (Ares et al, 2010), and understory plants and their rhizosphere resources (including root, root exudates, and nutrients) may trigger shifts in soil microbial community (Grayston & Prescott, 2005;McIntosh et al, 2013).…”

Section: The Structure Of Soil Microbial Communitycontrasting

confidence: 68%

Does thinning‐induced gap size result in altered soil microbial community in pine plantation in eastern Tibetan Plateau?

Yang

Pang

et al. 2017

Ecology and Evolution

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Although the effects of gap formation resulting from thinning on microclimate, plant generation and understory plant community have been well documented, the impact of thinning on soil microbial community and related ecological functions of forests particularly in subalpine coniferous region is largely unknown. Here, the effects of thinning on soil microbial abundance and community structure using phospholipid fatty acid (PLFA) in pine plantations were investigated 6 years after thinning. The experimental treatments consisted of two distinct‐sized gaps (30 m2 or 80 m2 in size) resulting from thinning, with closed canopy (free of thinning) as control. Soil temperature as well as the biomass of actinomycete and unspecific bacteria was sensitive to gap formation, but all these variables were only responsive to medium gap. Nonmetric multidimensional scaling confirmed that soil microbial community was responsive to gap size. In addition, gap size exerted contrasting effect on bacteria‐feeding nematode and fungi‐feeding nematodes. In conclusion, thinning‐induced gap size would affect soil microbial community through changing soil temperature or the abundance of fungi‐feeding nematodes.

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Section: The Structure Of Soil Microbial Communitycontrasting

confidence: 68%

Does thinning‐induced gap size result in altered soil microbial community in pine plantation in eastern Tibetan Plateau?

Yang

Pang

et al. 2017

Ecology and Evolution

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“…Phosphatase (PHO) activity was estimated by quantifying the ρ-nitrophenol resulting from the enzymatic hydrolysis of ρ-nitrophenyl phosphate (Tabatabai and Bremner 1969) assessed after incubating the soil for 1 h at 37°C. The specific enzymatic activity was estimated by dividing the total enzyme activities over the microbial biomass C (Katsalirou et al 2010).…”

Section: Soil Microbial Biomass and Enzymesmentioning

confidence: 99%

Repeated application of composted tannery sludge affects differently soil microbial biomass, enzymes activity, and ammonia-oxidizing organisms

Araújo

Lima

Santos

et al. 2016

Environ Sci Pollut Res

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Repeated application of composted tannery sludge (CTS) changes the soil chemical properties and, consequently, can affect the soil microbial properties. The aim of this study was to evaluate the responses of soil microbial biomass and ammonia-oxidizing organisms to repeated application of CTS. CTS was applied repeatedly during 6 years, and, at the sixth year, the soil microbial biomass, enzymes activity, and ammonia-oxidizing organisms were determined in the soil. The treatments consisted of 0 (without CTS application), 2.5, 5, 10, and 20 t ha(-1) of CTS (dry basis). Soil pH, EC, SOC, total N, and Cr concentration increased with the increase in CTS rate. Soil microbial biomass did not change significantly with the amendment of 2.5 Mg ha(-1), while it decreased at the higher rates. Total and specific enzymes activity responded differently after CTS application. The abundance of bacteria did not change with the 2.5-Mg ha(-1) CTS treatment and decreased after this rate, while the abundance of archaea increased significantly with the 2.5-Mg ha(-1) CTS treatment. Repeated application of different CTS rates for 6 years had different effects on the soil microbial biomass and ammonia-oxidizing organisms as a response to changes in soil chemical properties.

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“…The soil physical and chemical properties, altered by corn and rice cultivation, affected soil enzyme activities. Invertase, amylase, and catalase activities were negatively correlated with soil pH and ESP in our study ( Figure 6), because high soil pH and ESP restricted the growth and development of corn and rice, limiting the metabolic process of soil microbes, and affecting the release of root exudates, limiting soil enzyme activities [55]. The soil C and N contents were closely related to soil enzyme activities [56] and sufficient SOC content, as well as long-term fertilization, which can explain the higher enzyme activities observed in fields with longer cultivation years in our study (Figure 2a).…”

Section: Effects Of Crop Cultivation On Soil Properties and Enzyme Acmentioning

confidence: 62%

Corn and Rice Cultivation Affect Soil Organic and Inorganic Carbon Storage through Altering Soil Properties in Alkali Sodic Soils, Northeast of China

Wang

Tang

et al. 2020

Sustainability

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Soil organic carbon (SOC) and soil inorganic carbon (SIC) play essential roles in carbon cycling in terrestrial ecosystems; however, the effects of crop cultivation on them are still poorly understood, especially in alkali sodic soils widely distributed in semiarid regions. Alkali sodic soils from cornfields and paddies with cultivation years of 5, 15, and 25 were analyzed here to assess the response of soil properties and soil carbon pools to crop cultivation. Soil pH and exchangeable sodium percentages decrease in accordance with cultivation years, while enzyme activity (amylase, invertase, and catalase) shows a contrary trend. Soil pH and exchangeable sodium percentages are negatively correlated with SOC, but positively correlated with SIC. Redundancy analysis reveals an obvious relationship between SOC and invertase activity. The percentage of δ 13 C SOC found here is approximately -24.78% to -22.97% for cornfields and approximately -26.54% to -23.81% for paddies, suggesting that crop cultivation contributes to SOC sequestration and stocking, increasing with cultivation years. The percentage of δ 13 C SIC found here is approximately 1.90% to 3.73% , proving that lithogenic inorganic carbon is the major SIC, where the stock decreases with increasing cultivation years. Significant total carbon stock loss is observed in cornfields, while it is preserved at 120 Mg ha −1 in paddies. We conclude here from the results that corn and rice cultivation reduce alkali sodic conditions in soil, thereby improving soil enzymes and favoring SOC stocking, but reducing SIC stocks.

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Long-term management effects on organic C and N pools and activities of C-transforming enzymes in prairie soils

Cited by 39 publications

References 30 publications

Does thinning‐induced gap size result in altered soil microbial community in pine plantation in eastern Tibetan Plateau?

Does thinning‐induced gap size result in altered soil microbial community in pine plantation in eastern Tibetan Plateau?

Repeated application of composted tannery sludge affects differently soil microbial biomass, enzymes activity, and ammonia-oxidizing organisms

Corn and Rice Cultivation Affect Soil Organic and Inorganic Carbon Storage through Altering Soil Properties in Alkali Sodic Soils, Northeast of China

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