Long-Term Application of Organic Manure and Mineral Fertilizer on N2O and CO2 Emissions in a Red Soil from Cultivated Maize-Wheat Rotation in China

Zhai, Limei; Liu, Hongbin; Zhang, Jizong; Huang, Jing; Wang, Boren

doi:10.1016/s1671-2927(11)60174-0

Cited by 77 publications

(31 citation statements)

References 38 publications

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“…This WFPS range also showed the lowest CH 4 fluxes. A conclusion can therefore be made that there was high C oxidation when WFPS was low and the opposite was true when WFPS was above 70% [54,86].…”

Section: Soil and Environmental Factors Controlling Ghg Emissionsmentioning

confidence: 98%

Mitigating Global Warming Potential and Greenhouse Gas Intensities by Applying Composted Manure in Cornfield: A 3-Year Field Study in an Andosol Soil

2017

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Abstract:A 3-year study was conducted in cornfield to evaluate how composted cattle manure application affects net global warming potential (GWP; the sum of nitrous oxide (N 2 O) and methane (CH 4 ) minus net ecosystem carbon balance (NECB)) and greenhouse gas intensity (GHGI; net GWP per unit of plant biomass yield). In the first experiment, conducted from 2010 to 2012, five fertilization strategies that included an unfertilized control plot, inorganic fertilizer-only plot, two plots with inorganic fertilizer plus composted cattle manure, and composted cattle manure-only plot were established. In the second experiment composted cattle manure was applied in autumn 2012 and the field was subdivided into three plots in spring 2013, with one plot receiving additional composted cattle manure, the second plot received additional inorganic fertilizer and the third plot did not receive any additional fertilization. Fluxes of N 2 O, CH 4 and CO 2 were measured using the static closed chamber method. NECB was calculated as carbon (C) inputs minus C output (where a negative value indicates net C loss). In experiment 1, manure application significantly increased NECB and reduced net GWP by more than 30% in each of the three years of the study. GHGI in the manure-amended plots was lower than in other plots, except in 2012 when the manure-only plot had higher GHGI than fertilizer-only plot. Application of inorganic fertilizer alone increased GWP by 5% and 20% in 2010 and 2011, but showed a 30% reduction in 2012 relative to the unfertilized control plot. However, due to higher net primary production (NPP), fertilizer-only plot had lower GHGI compared to the control. Application of inorganic fertilizer together with manure showed the greatest potential to reduce GWP and GHGI, while increasing NPP and NECB. In experiment 2, additional manure or inorganic fertilizer application in spring increased NPP by a similar amount, but additional manure application also increased NECB, and decreased GWP and GHGI. Manure application, as a partial substitute or supplemental fertilizer, shows potential to mitigate GWP and GHGI.

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Section: Soil and Environmental Factors Controlling Ghg Emissionsmentioning

confidence: 98%

Mitigating Global Warming Potential and Greenhouse Gas Intensities by Applying Composted Manure in Cornfield: A 3-Year Field Study in an Andosol Soil

2017

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“…To test model performance against independent data, we chose part of site‐level data for calibration and the other part for validation (section 3.1). The details on these agroecosystem experimental observations information have been documented in Tables S2–S4 (cited with Cai et al, ; Cui et al, ; Ding et al, ; Dong et al, ; Feng et al, ; Han et al, ; Hu et al, ; Jing et al, ; Li et al, ; Liu, Li, et al, ; Liu, Qu, et al, ; Liu, Wang, et al, , Liu, Zhang, et al, ; Liu et al, , ; Ma et al, ; Mo et al, , ; Pan et al, ; Wei et al, ; Xiao et al, ; Yang et al, , ; Yu et al, ; Zhai et al, ; Zhao et al, ; Zhang et al, , etc.) in the supporting information.…”

Section: The Dlemmentioning

confidence: 99%

Improving Representation of Crop Growth and Yield in the Dynamic Land Ecosystem Model and Its Application to China

Zhang

Tian

Yang

et al. 2018

J Adv Model Earth Syst

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To accurately assess the roles of agriculture in securing food security and maintaining environmental sustainability, it is essential to improve the representation of crop growth, development, and yield formation in global land models that traditionally focus on energy, water, carbon, and nitrogen exchanges between land and the atmosphere. In this study, a process‐based agricultural module has been coupled with the Dynamic Land Ecosystem Model (DLEM‐AG2.0) for assessing how multiple environmental factors (climate change, atmospheric CO2 concentration, tropospheric O3, and nitrogen deposition) and human activities (land use/cover change, nitrogen fertilizer use, and irrigation) have affected the crop growth, development, yield, carbon (C), nitrogen (N), and water cycles in agroecosystems. Here we describe the model structure for simulating crop growth, development, and yield formation in the DLEM‐AG2.0, and then we validate the model using field observations and a national yield survey for three major crops (wheat, maize, and rice) in China during 1980–2012. Results show that the DLEM‐AG2.0 is capable of simulating the dynamic processes of phenological development, leaf growth expansion, biomass accumulation, biomass allocation, and yield formation for wheat, maize, and rice with normalized root mean square errors of the simulations of less than 20%. Our model‐based yield estimation for the three major crops at the national scale for the period 1980–2012 is generally consistent with the national yield survey in China. The crop representation in the DLEM‐AG2.0 is flexible for extrapolating to a global scale after rigorous testing with both site‐specific and regional observations. Further advancement of agricultural modeling within the global land modeling framework will require consideration of human perception and behavior for adapting and mitigating global change.

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“…However, little is known about how effective this approach is in regard to increasing grain yield while reducing carbon RT1 reduced tillage with stubble standing, RT2 reduced tillage with stubble mulching, RT3 reduced tillage with stubble incorporated in the soil, CT conventional tillage without stubble retention a Carbon emission was estimated using the soil respiration function (Zhai et al 2011) b The p value and the LSD(0.05) were for all the treatments in the column , CRP conservation reserve program emission. In the present study, we used the term "carbon emission efficiency" to determine how much grain yield that was associated with per unit of carbon emission.…”

Section: Carbon Emission Efficiencymentioning

confidence: 99%

Less carbon emissions of wheat–maize intercropping under reduced tillage in arid areas

Chai

et al. 2014

Agron. Sustain. Dev.

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Intercropping is used to increase grain production in many areas of the world. However, this increasing crop yield costs large amounts of water used by intercropped plants. In addition, intercropping usually requires higher inputs that induce greenhouse gas emissions. Actually, it is unknown whether intercropping can be effective in waterlimited arid areas. Here, we measured crop yield, water consumption, soil respiration, and carbon emissions of wheatmaize intercropping under different tillage and crop residue management options. . Reduced tillage decreased C emission over conventional tillage by 6.7 % for the intercropping, 5.9 % for monoculture maize, and 7.1 % for monoculture wheat. Compared to monoculture maize, wheat-maize intercropping used more water but emitted 3.4 kg C per hectare per millimeter of water used, which was 23 % lower than monoculture maize. Overall, our findings show that maize-wheat intercropping with reduced tillage coupled with stubble mulching can be used to increase grain production while effectively lower carbon emissions in arid areas.

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Long-Term Application of Organic Manure and Mineral Fertilizer on N2O and CO2 Emissions in a Red Soil from Cultivated Maize-Wheat Rotation in China

Cited by 77 publications

References 38 publications

Mitigating Global Warming Potential and Greenhouse Gas Intensities by Applying Composted Manure in Cornfield: A 3-Year Field Study in an Andosol Soil

Mitigating Global Warming Potential and Greenhouse Gas Intensities by Applying Composted Manure in Cornfield: A 3-Year Field Study in an Andosol Soil

Improving Representation of Crop Growth and Yield in the Dynamic Land Ecosystem Model and Its Application to China

Less carbon emissions of wheat–maize intercropping under reduced tillage in arid areas

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