Alpine meadow restorations by non-dominant species increased soil nitrogen transformation rates but decreased their sensitivity to warming

Jiang, Liangbo; Zhang, Ling; Deng, Bangliang; Liu, Xishuai; Yi, Huiqin; Xiang, Hai; Li, Bingbing; Zhang, Wenyuan; Guo, Xiaomin; Niu, Dekui

doi:10.1007/s11368-016-1488-0

Cited by 22 publications

(10 citation statements)

References 57 publications

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“…As have been reported by previous studies, factors impacting nitriication process including quantity and quality of soil N input, soil moisture (water holding capacity) [34,35], soil temperature [10,17,30], irrigation and tillage practices, soil type, soil oxygen concentration, dissolved organic C availability (controlling substrate availability of soil microbes) [17,36], additives for soil Nitrogen in Agriculture -Updatesamelioration, vegetation or crop types [37], land use change and soil pH [36,38]. While soil N provided substrate for transformation process producing soil N 2 O, other factors regulated N 2 O production process mainly via indirect efects on soil microbial activities.…”

Section: General Factors Impacting Soil N 2 O Productionsmentioning

confidence: 57%

“…Due to complicated interactions among all soil N transformation process, net N transformation rates have been widely studied [10,11]. Once plant roots were excluded, changes in soil N levels could be considered as results of transformations.…”

Section: Net and Gross N Transformation Ratesmentioning

confidence: 99%

“…Laboratory soil incubation studies were widely used to examine N transformations in environmental science [10,17]. During laboratory incubation, the environmental factors could be easily altered to check their role played on N transformation rates.…”

Section: In Situ and Ex Situ Studies On N Transformationsmentioning

confidence: 99%

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Nitrogen Transformations Associated with N2O Emissions in Agricultural Soils

Zhang¹,

Liu²

2018

Nitrogen in Agriculture - Updates

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Nitrogen (N) is one of the most important plant nutrient, and its availability and transformations are vital for net primary production. Soil N transformations include mineralization, nitriication and denitriication processes. Nitrogen mineralization transforms organic N into inorganic N, providing available N for crops. Both nitriication and denitriication are microbe-driven processes associated with nitrous oxide (N 2 O) emissions. Nitriication inhibitors have been demonstrated to be useful in decreasing soil N 2 O emissions, including the application of nitriication inhibitors, such as dicyandiamide (DCD) and 3,4-dimethylpyrazole phosphate (DMPP). Recently, biological nitriication inhibitors have also atracted researchers' atention, which may be more environment-friendly. In addition, biochar commonly used as soil ameliorant to improve soil quality and C sequestration could also mitigate soil N 2 O emissions. Once all efective strategies would be widely implemented, more environment-friendly agriculture could be expected.

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Section: General Factors Impacting Soil N 2 O Productionsmentioning

confidence: 57%

Section: Net and Gross N Transformation Ratesmentioning

confidence: 99%

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Nitrogen Transformations Associated with N2O Emissions in Agricultural Soils

Zhang¹,

Liu²

2018

Nitrogen in Agriculture - Updates

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“…The experiment was conducted (incubation of treated soils) in 500-ml glass jars for gas sampling and 1000-ml glass beakers for soil sampling at 25 ± 1°C in a controlled chamber for 61 days. The jars were examined and weighed periodically, and soil moisture was preserved to 50% and 90% WFPS by the addition of distilled water (Deng et al 2016).…”

Section: Methodsmentioning

confidence: 99%

N2O Emissions Mitigation in Acidic Soil Following Biochar Application Under Different Moisture Regimes

Aamer

Shaaban

Hassan

et al. 2020

J Soil Sci Plant Nutr

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Managing soil pH has been recognized as one of the promising options for N 2 O emission mitigation in acidic soils. Rice-straw biochar (BC) application to acidic soils can not only ameliorate soil acidity but also influence N 2 O emissions. We investigated the impact of various levels of rice-straw-derived biochar, a control (no biochar), 2% biochar, and 4% biochar under 50% and 90% water-filled pore space (WFPS) values. In comparison with the application of biochar at 2%, the application of biochar at 4% more pronouncedly altered soil properties (pH, ammonium (NH 4 +-N), nitrate (NO 3-N), microbial biomass carbon (MBC), and abundance of nosZ and nirK genes). Similarly, more noticeable changes in soil properties were noted under 90% WFPS than under 50% WFPS. The soil pH increased from 5.67 to 7.29 with the 4% biochar application. In comparison with those following the 2% biochar application and the control, soil mineral N and the abundance of nosZ and nirK genes following the 4% biochar application were more augmented, thereby leading to a remarkable reduction in soil N 2 O emissions. The MBC content in the soil also increased with the BC applications, and the maximum MBC contents of 655 and 428 mg kg −1 dry soil were recorded with the 4% biochar application under 50% and 90% WFPS, respectively. Moreover, in comparison with the control, 4% BC mitigated soil N 2 O emissions by 83%, whereas cumulative N 2 O emissions were mitigated by 49%. In comparison with 90% WFPS, 50% WFPS produced 35% more N 2 O emissions. However, the biochar applications significantly (p < 0.05) reduced N 2 O emissions under both WFPS values owing to an increase in soil pH, which activated mineral N (NH 4 +-N and NO 3 −-N) and enhanced the abundance of nosZ and nirK genes. These results suggest that biochar applications can substantially diminish soil N 2 O emissions by triggering soil pH, soil C and N pools, and the abundance of nosZ and nirK genes.

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“…In addition, the researchers of Jiangxi Agricultural University have carried out systematic research on soil nutrient management of subtropical mountain meadow [68][69][70][71] (Figure 5) and obtained a series of scientific research results [72][73][74][75], providing a good scientific guidance for the protection and degradation restoration of mountain meadow which was a special ecosystem element [76][77][78].…”

Section: Main Units and Species Of Forest Fertilization Research In Cmentioning

confidence: 99%

Research Progress of Forest Land Nutrient Management in China

Li¹,

Wang²,

Geng³

et al. 2020

Advances in Forest Management Under Global Change

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Forest land fertilization is a supplement and regulation method based on the regular pattern of forest physiological activity and nutrient demand, combined with the ability of soil to supply nutrient elements. We summarized the important achievements and influential events of forest land fertilization and nutrient management in modern times, and discussed the main problems of forest land fertilization at this stage. The main theories of comprehensive nutrition diagnosis method, formula fertilization method, site nutrient effect fertilization model, and ASI-based balanced fertilization method were analyzed. The main scientific research institutions, main tree species, and main research results of forest fertilization research are described. The development trend of the comprehensive nutrition diagnosis method, the combination of forest fertilization theory and environmental ecology principle, the combination of fertilization and forest oriented cultivation goal, the application of precise fertilization technology in forest land, the development of new forest specific fertilizer, the research of plant nutrition molecular genetics, the research of root state and rhizosphere microecosystem, the application of advanced technology and technology, and the development and application of new nonpollution fertilizer were discussed. It is an important research direction to apply the existing research results to forestry production and improve the quality.

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Alpine meadow restorations by non-dominant species increased soil nitrogen transformation rates but decreased their sensitivity to warming

Cited by 22 publications

References 57 publications

Nitrogen Transformations Associated with N2O Emissions in Agricultural Soils

Nitrogen Transformations Associated with N2O Emissions in Agricultural Soils

N2O Emissions Mitigation in Acidic Soil Following Biochar Application Under Different Moisture Regimes

Research Progress of Forest Land Nutrient Management in China

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