Impact of crop yield reduction on greenhouse gas emissions from compensatory cultivation of pasture and forested land

2010 ◽  
Vol 8 (3) ◽  
pp. 164-175 ◽  
Author(s):  
Rob Carlton ◽  
Pete Berry ◽  
Pete Smith
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Crop Yield ◽  
Yield Reduction ◽  
Gas Emissions

scholarly journals Quantifying the Effects of Biochar Application on Greenhouse Gas Emissions from Agricultural Soils: A Global Meta-Analysis

2020 ◽  
Vol 12 (8) ◽  
pp. 3436 ◽  
Author(s):  
Qi Zhang ◽  
Jing Xiao ◽  
Jianhui Xue ◽  
Lang Zhang
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Crop Yield ◽  
Radiative Forcing ◽  
Specific Activity ◽  
C:N Ratio ◽  
Ghg Emissions ◽  
N2o Emissions ◽  
Response Ratio ◽  
Gas Emissions

Agricultural disturbance has significantly boosted soil greenhouse gas (GHG) emissions such as methane (CH4), carbon dioxide (CO2), and nitrous oxide (N2O). Biochar application is a potential option for regulating soil GHG emissions. However, the effects of biochar application on soil GHG emissions are variable among different environmental conditions. In this study, a dataset based on 129 published papers was used to quantify the effect sizes of biochar application on soil GHG emissions. Overall, biochar application significantly increased soil CH4 and CO2 emissions by an average of 15% and 16% but decreased soil N2O emissions by an average of 38%. The response ratio of biochar applications on soil GHG emissions was significantly different under various management strategies, biochar characteristics, and soil properties. The relative influence of biochar characteristics differed among soil GHG emissions, with the overall contribution of biochar characteristics to soil GHG emissions ranging from 29% (N2O) to 71% (CO2). Soil pH, the biochar C:N ratio, and the biochar application rate were the most influential variables on soil CH4, CO2, and N2O emissions, respectively. With biochar application, global warming potential (impact of the emission of different greenhouse gases on their radiative forcing by agricultural practices) and the intensity of greenhouse gas emissions (emission rate of a given pollutant relative to the intensity of a specific activity) significantly decreased, and crop yield greatly increased, with an average response ratio of 23%, 41%, and 21%, respectively. Our findings provide a scientific basis for reducing soil GHG emissions and increasing crop yield through biochar application.

Simulating no-tillage effects on crop yield and greenhouse gas emissions in Kentucky corn and soybean cropping systems: 1980–2018

2022 ◽  
Vol 197 ◽  
pp. 103355
Author(s):  
Yawen Huang ◽  
Bo Tao ◽  
Yanjun Yang ◽  
Xiaochen Zhu ◽  
Xiaojuan Yang ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Crop Yield ◽  
Cropping Systems ◽  
No Tillage ◽  
Gas Emissions

scholarly journals Greenhouse gas emissions and crop yield in no-tillage systems: A meta-analysis

2018 ◽  
Vol 268 ◽  
pp. 144-153 ◽  
Author(s):  
Yawen Huang ◽  
Wei Ren ◽  
Lixin Wang ◽  
Dafeng Hui ◽  
John H. Grove ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Crop Yield ◽  
Meta Analysis ◽  
No Tillage ◽  
Tillage Systems ◽  
Gas Emissions
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