scholarly journals Legacy effects of land use on soil nitrous oxide emissions in annual crop and perennial grassland ecosystems

2018 ◽  
Vol 28 (5) ◽  
pp. 1362-1369 ◽  
Author(s):  
Michael Abraha ◽  
Ilya Gelfand ◽  
Stephen K. Hamilton ◽  
Jiquan Chen ◽  
G. Philip Robertson
Keyword(s):  
Land Use ◽  
Nitrous Oxide ◽  
Nitrous Oxide Emissions ◽  
Legacy Effects ◽  
Annual Crop ◽  
Grassland Ecosystems ◽  
Perennial Grassland ◽  
Effects Of Land Use

scholarly journals Greenhouse gas emissions from the water–air interface of a grassland river: a case study of the Xilin River

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Xue Hao ◽  
Yu Ruihong ◽  
Zhang Zhuangzhuang ◽  
Qi Zhen ◽  
Lu Xixi ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Land Use ◽  
Nitrous Oxide ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Ghg Emissions ◽  
Nitrous Oxide Emissions ◽  
Gas Emissions ◽  
Sand Land ◽  
Very High

AbstractGreenhouse gas (GHG) emissions from rivers and lakes have been shown to significantly contribute to global carbon and nitrogen cycling. In spatiotemporal-variable and human-impacted rivers in the grassland region, simultaneous carbon dioxide, methane and nitrous oxide emissions and their relationships under the different land use types are poorly documented. This research estimated greenhouse gas (CO2, CH4, N2O) emissions in the Xilin River of Inner Mongolia of China using direct measurements from 18 field campaigns under seven land use type (such as swamp, sand land, grassland, pond, reservoir, lake, waste water) conducted in 2018. The results showed that CO2 emissions were higher in June and August, mainly affected by pH and DO. Emissions of CH4 and N2O were higher in October, which were influenced by TN and TP. According to global warming potential, CO2 emissions accounted for 63.35% of the three GHG emissions, and CH4 and N2O emissions accounted for 35.98% and 0.66% in the Xilin river, respectively. Under the influence of different degrees of human-impact, the amount of CO2 emissions in the sand land type was very high, however, CH4 emissions and N2O emissions were very high in the artificial pond and the wastewater, respectively. For natural river, the greenhouse gas emissions from the reservoir and sand land were both low. The Xilin river was observed to be a source of carbon dioxide and methane, and the lake was a sink for nitrous oxide.

scholarly journals Spatial and temporal variability of nitrous oxide emissions in a mixed farming landscape of Denmark

2012 ◽  
Vol 9 (8) ◽  
pp. 2989-3002 ◽  
Author(s):  
K. Schelde ◽  
P. Cellier ◽  
T. Bertolini ◽  
T. Dalgaard ◽  
T. Weidinger ◽  
...  
Keyword(s):  
Land Use ◽  
Nitrous Oxide ◽  
Agricultural Land ◽  
Nitrous Oxide Emissions ◽  
Soil Conditions ◽  
Spatial And Temporal Variability ◽  
N2o Emissions ◽  
N2o Production ◽  
Mixed Farming ◽  
N2o Fluxes

Abstract. Nitrous oxide (N2O) emissions from agricultural land are variable at the landscape scale due to variability in land use, management, soil type, and topography. A field experiment was carried out in a typical mixed farming landscape in Denmark, to investigate the main drivers of variations in N2O emissions, measured using static chambers. Measurements were made over a period of 20 months, and sampling was intensified during two weeks in spring 2009 when chambers were installed at ten locations or fields to cover different crops and topography and slurry was applied to three of the fields. N2O emissions during spring 2009 were relatively low, with maximum values below 20 ng N m−2 s−1. This applied to all land use types including winter grain crops, grasslands, meadows, and wetlands. Slurry application to wheat fields resulted in short-lived two-fold increases in emissions. The moderate N2O fluxes and their moderate response to slurry application were attributed to dry soil conditions due to the absence of rain during the four previous weeks. Cumulative annual emissions from two arable fields that were both fertilized with mineral fertilizer and manure were large (17 kg N2O-N ha−1 yr−1 and 5.5 kg N2O-N ha−1 yr−1) during the previous year when soil water conditions were favourable for N2O production during the first month following fertilizer application. Our findings confirm the importance of weather conditions as well as nitrogen management on N2O fluxes.

Legacy effects of land-use modulate tree growth responses to climate extremes

Oecologia ◽  
2018 ◽  
Vol 187 (3) ◽  
pp. 825-837 ◽  
Author(s):  
Katharina Mausolf ◽  
Werner Härdtle ◽  
Kirstin Jansen ◽  
Benjamin M. Delory ◽  
Dietrich Hertel ◽  
...  
Keyword(s):  
Land Use ◽  
Tree Growth ◽  
Climate Extremes ◽  
Legacy Effects ◽  
Growth Responses ◽  
Effects Of Land Use

Soil nitrous oxide emissions associated with conversion of forage grass to annual crop receiving annual application of pig manure

2019 ◽  
Vol 99 (4) ◽  
pp. 420-433
Author(s):  
Mayowa Adelekun ◽  
Olalekan Akinremi ◽  
Mario Tenuta ◽  
Paligwendé Nikièma
Keyword(s):  
Nitrous Oxide ◽  
Perennial Grass ◽  
Perennial Grasses ◽  
Nitrous Oxide Emissions ◽  
Environmental Drivers ◽  
Pig Manure ◽  
Forage Grass ◽  
Annual Crop ◽  
Annual Crops ◽  
Change Mitigation

The disruptive land-use change during forage grass conversion to annual crop can be critical for determining nitrous oxide (N2O) emissions, but this is an understudied period. We measured soil N2O fluxes (using closed static vented chambers) together with potential environmental drivers of these fluxes from liquid pig manure (LPM) and solid pig manure (SPM) applied to an annual crop (ANN) and perennial forages (FPP) that was converted to annual crop. Unamended plots were used as a control (CON). The results showed that in 2013, average soil nitrate-N was significantly higher on the recently converted FPP (ranging from 19 to 83 mg N kg−1) than the continuous ANN plots (from 16 to 35 mg N kg−1). The recently converted perennial forage system produced three times greater N2O than the continuous annual system, which is likely a result of accelerated N mineralization from the accumulated soil organic matter (over 4 yr) and grass residues of the recently killed forage grasses. However, during the second year of the study when the FPP plots were reseeded to perennial grasses, the system emitted 30% less N2O than the ANN system. These results suggest that including perennial forage grass in rotation with annual crops can provide N-saving and climate change mitigation benefits; however, some of the N stored in the soil would be lost when the perennial grass plots are cultivated to grow annual crops.

Nitrous oxide emissions from agricultural land use in Germany— a synthesis of available annual field data

2006 ◽  
Vol 169 (3) ◽  
pp. 341-351 ◽  
Author(s):  
Hermann F. Jungkunst ◽  
Annette Freibauer ◽  
Henry Neufeldt ◽  
Georg Bareth
Keyword(s):  
Land Use ◽  
Nitrous Oxide ◽  
Field Data ◽  
Agricultural Land ◽  
Nitrous Oxide Emissions ◽  
Agricultural Land Use

scholarly journals Simulating climate change and land use effects on soil nitrous oxide emissions in Mediterranean conditions using the Daycent model

2017 ◽  
Vol 238 ◽  
pp. 78-88 ◽  
Author(s):  
Jorge Álvaro-Fuentes ◽  
José Luis Arrúe ◽  
Ana Bielsa ◽  
Carlos Cantero-Martínez ◽  
Daniel Plaza-Bonilla ◽  
...  
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Nitrous Oxide ◽  
Nitrous Oxide Emissions ◽  
Land Use Effects ◽  
Daycent Model ◽  
Mediterranean Conditions

scholarly journals Nitrous oxide emissions at the landscape scale: spatial and temporal variability

2011 ◽  
Vol 8 (6) ◽  
pp. 11941-11978 ◽  
Author(s):  
K. Schelde ◽  
P. Cellier ◽  
T. Bertolini ◽  
T. Dalgaard ◽  
T. Weidinger ◽  
...  
Keyword(s):  
Land Use ◽  
Nitrous Oxide ◽  
Agricultural Land ◽  
Mineral Fertilizer ◽  
Landscape Scale ◽  
Nitrous Oxide Emissions ◽  
Spatial And Temporal Variability ◽  
N2o Emissions ◽  
N2o Production ◽  
N2o Fluxes

Abstract. Nitrous oxide (N2O) emissions from agricultural land are variable at the landscape scale due to variability in land use, management, soil type, and topography. A field experiment was carried out in a typical mixed farming landscape in Denmark, to investigate the main drivers of variations in N2O emissions, measured using static chambers. Measurements were done over a period of 20 months, and sampling was intensified during two weeks in spring 2009 when chambers were installed at ten locations or fields to cover different crops and topography and slurry was applied to three of the fields. N2O emissions during the spring 2009 period were relatively low, with maximum values below 20 ng N m−2 s−1. This applied to all land use types including winter grain crops, grassland, meadow, and wetland. Slurry application to wheat fields resulted in short-lived two-fold increases in emissions. The moderate N2O fluxes and their moderate response to slurry application were attributed to dry soil moisture conditions due to the absence of rain during the four previous weeks. Measured cumulated annual emissions from two arable fields that were both fertilized with mineral fertilizer and manure were large (17 kg N2O-N ha−1 yr−1 and 5.5 kg N2O-N ha−1 yr−1, respectively) during the previous year when soil water conditions were favourable for N2O production during the first month following fertilizer application, confirming the importance of the climatic regime on N2O fluxes.

Riparian land-use systems impact soil microbial communities and nitrous oxide emissions in an agro-ecosystem

2020 ◽  
Vol 724 ◽  
pp. 138148 ◽  
Author(s):  
Tolulope G. Mafa-Attoye ◽  
Megan A. Baskerville ◽  
Enoch Ofosu ◽  
Maren Oelbermann ◽  
Naresh V. Thevathasan ◽  
...  
Keyword(s):  
Land Use ◽  
Nitrous Oxide ◽  
Microbial Communities ◽  
Soil Microbial Communities ◽  
Nitrous Oxide Emissions ◽  
Land Use Systems ◽  
Soil Microbial

The effect of land use change from grassland to bioenergy crops Miscanthus and reed canary grass on nitrous oxide emissions

2019 ◽  
Vol 120 ◽  
pp. 396-403 ◽  
Author(s):  
D.J. Krol ◽  
M.B. Jones ◽  
M. Williams ◽  
Ó. Ní Choncubhair ◽  
G.J. Lanigan
Keyword(s):  
Land Use ◽  
Nitrous Oxide ◽  
Land Use Change ◽  
Bioenergy Crops ◽  
Nitrous Oxide Emissions ◽  
Reed Canary Grass ◽  
Canary Grass
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