scholarly journals Agricultural practices that reduce greenhouse gases (GHGs) and generate co-benefits

2008 ◽  
Author(s):  
K. Duncan
Keyword(s):  
Greenhouse Gases ◽  
Agricultural Practices

No evidence that earthworms increase soil greenhouse gas emissions (CO2 and N2O) in the presence of plants and soil-moisture fluctuations

2021 ◽  
Author(s):  
Pierre Ganault ◽  
Johanne Nahmani ◽  
Yvan Capowiez ◽  
Isabelle Bertrand ◽  
Bruno Buatois ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Greenhouse Gases ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Soil Water ◽  
Water Status ◽  
Soil Layer ◽  
Agricultural Practices ◽  
Biodiversity Loss ◽  
Gas Emissions

<p>Accelerating climate change and biodiversity loss calls for agricultural practices that can sustain productivity with lower greenhouse gas emissions while maintaining biodiversity. Biodiversity-friendly agricultural practices have been shown to increase earthworm populations, but according to a recent meta-analyses, earthworms could increase soil CO<sub>2</sub> and N<sub>2</sub>O emissions by 33 and 42%, respectively. However, to date, many studies reported idiosyncratic and inconsistent effects of earthworms on greenhouse gases, indicating that the underlying mechanisms are not fully understood. Here we report the effects of earthworms (anecic, endogeic and their combination) with or without plants on CO<sub>2</sub> and N<sub>2</sub>O emissions in the presence of soil-moisture fluctuations from a mesocosms experiment. The experimental set-up was explicitly designed to account for the engineering effect of earthworms (i.e. burrowing) and investigate the consequences on soil macroporosity, soil water dynamic, and microbial activity. We found that plants reduced N<sub>2</sub>O emissions by 19.80% and that relative to the no earthworm control, the cumulative N<sub>2</sub>O emissions were 17.04, 34.59 and 44.81% lower in the anecic, both species and endogeic species, respectively. CO<sub>2</sub> emissions were not significantly affected by the plants or earthworms but depended on the interaction between earthworms and soil water content, an interaction that was also observed for the N<sub>2</sub>O emissions. Soil porosity variables measured by X-ray tomography suggest that the earthworm effects on CO<sub>2</sub> and N<sub>2</sub>O emissions were mediated by the burrowing patterns affecting the soil aeration and water status. N<sub>2</sub>O emissions decreased with the volume occupied by macropores in the deeper soil layer, whereas CO<sub>2</sub> emissions decreased with the macropore volume in the top soil layer. This study suggests that experimental setups without plants and in containers where the earthworm soil engineering effects via burrowing and casting on soil water status are minimized may be responsible, at least in part, for the reported positive earthworm effects on greenhouse gases.</p>

scholarly journals Impacts of climate variability on growth and variability of agricultural productivity: a review

2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Rekha Kumari ◽  
Shruti Kanga
Keyword(s):  
Greenhouse Gases ◽  
Crop Yield ◽  
Crop Yields ◽  
Agricultural Productivity ◽  
Agricultural Practices ◽  
High Volume ◽  
Seasonal Patterns ◽  
Climatic Parameters ◽  
Research Papers ◽  
Rainy Days

In this paper a comprehensive review of different research papers, reports and articles associated with the impacts of the variability of climatic parameters mainly temperature and rainfall on agricultural productivity and its variability. In the high altitude and hilly regions due increase of temperature from low temperature, it makes those regions more favorable to more crop yield. Whereas in the planer region due to the increase of temperature the crop yields are getting affected to a greater extent. The rainfall is also having a great impact on the crop yield. However, due to irregular seasonal patterns, an increase in the number of dry days and extremely high rainy days are affecting the yield of almost every crop. Apart from temperature and rainfall, the crop yields are also affected by greenhouse gases, for example, carbon dioxide, carbon mono-oxide, methane, etc. In opposite to that, the high volume of agricultural practices can decrease the level of greenhouse gases and climate change.

scholarly journals Gas chromatography and photoacoustic spectroscopy for the assessment of soil greenhouse gases emissions

2013 ◽  
Vol 43 (2) ◽  
pp. 262-269 ◽  
Author(s):  
Rodrigo da Silveira Nicoloso ◽  
Cimélio Bayer ◽  
Genuir Luis Denega ◽  
Paulo Armando Victória de Oliveira ◽  
Martha Mayumi Higarashi ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Greenhouse Gases ◽  
Photoacoustic Spectroscopy ◽  
Cropping Systems ◽  
Agricultural Practices ◽  
N2o Emissions ◽  
N2o Fluxes ◽  
Carbon Dioxide Co2 ◽  
Ghg Fluxes

Assessments of soil carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) emissions are critical for determination of the agricultural practices' potential to mitigate global warming. This study evaluated the photoacoustic spectroscopy (PAS) for the assessment of soil greenhouse gases (GHG) fluxes in comparison to the standard gas chromatography (GC) method. Two long-term experiments with different tillage and cropping systems over a Paleudult were evaluated using static chambers. PAS measurements of CO2 and N2O concentrations showed good relationship and linearity (R2=0.98 and 0.94, respectively) with GC results. However, CH4 measurements were significantly affected by air sample moisture which interfered on CH4 detection by PAS. Overestimation of CO2 and N2O concentrations in air samples determined by PAS (14.6 and 18.7%, respectively) were also related to sampling moisture. CO2 and N2O fluxes showed good agreement between methods (R2=0.96 and 0.95, respectively), though PAS overestimated fluxes by 18.6 and 13.6% in relation to GC results, respectively. PAS showed good sensitivity and was able to detect CO2 and N2O fluxes as low as 332mg CO2 m-2 h-1 and 21µg N2O m-2 h-1. PAS analyzer should be detailed calibrated to reduce humidity interference on CO2, CH4 and N2O concentrations measurements avoiding overestimation or erroneous determination of soil GHG fluxes.

scholarly journals Guest Editorial: Global Warming and Population Health

1998 ◽  
Vol 4 (1) ◽  
pp. 6
Author(s):  
Shilu Tong
Keyword(s):  
Greenhouse Gases ◽  
Guest Editorial ◽  
Industrial Revolution ◽  
Global Climate ◽  
Agricultural Practices ◽  
Anthropogenic Sources ◽  
Fossil Fuel Combustion ◽  
Cement Production ◽  
International Panel ◽  
Carbon Dioxide Co2

Since the industrial revolution, the contribution of anthropogenic sources of greenhouse gases to the global environment has significantly increased. Greenhouse gases, including carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), are accumulating in the atmosphere. These trends are largely attributed to human activities, primarily fossil-fuel combustion, some industrial processes, for example cement production and mining, changes in land use, and agricultural practices. The International Panel on Climate Change (IPCC), made up of more than 2,500 of the world's leading scientists, has recently concluded that human activity might have already begun to change the global climate, and in the absence of efforts to reduce greenhouse gases, the concentrations of these gases are expected to increase significantly throughout the next century (IPCC, 1996).

Effects of intensification of agricultural practices on emission of greenhouse gases

Chemosphere ◽  
1993 ◽  
Vol 26 (1-4) ◽  
pp. 87-93 ◽  
Author(s):  
G.M. Ward ◽  
K.G. Doxtader ◽  
W.C. Miller ◽  
D.E. Johnson
Keyword(s):  
Greenhouse Gases ◽  
Agricultural Practices ◽  
Emission Of Greenhouse Gases

Impacts of climate variability on growth and variability of agricultural productivity: a review

2021 ◽  
Author(s):  
Rekha Kumari ◽  
Shruti Kanga
Keyword(s):  
Greenhouse Gases ◽  
Crop Yield ◽  
Crop Yields ◽  
Agricultural Productivity ◽  
Agricultural Practices ◽  
High Volume ◽  
Seasonal Patterns ◽  
Climatic Parameters ◽  
Research Papers ◽  
Rainy Days

In this paper a comprehensive review of different research papers, reports and articles associated with the impacts of the variability of climatic parameters mainly temperature and rainfall on agricultural productivity and its variability. In the high altitude and hilly regions due increase of temperature from low temperature, it makes those regions more favorable to more crop yield. Whereas in the planer region due to the increase of temperature the crop yields are getting affected to a greater extent. The rainfall is also having a great impact on the crop yield. However, due to irregular seasonal patterns, an increase in the number of dry days and extremely high rainy days are affecting the yield of almost every crop. Apart from temperature and rainfall, the crop yields are also affected by greenhouse gases, for example, carbon dioxide, carbon mono-oxide, methane, etc. In opposite to that, the high volume of agricultural practices can decrease the level of greenhouse gases and climate change.

scholarly journals Relationship between pesticide use and climate change for crops

2007 ◽  
Vol 8 ◽  
pp. 83-91 ◽  
Author(s):  
Bhakta R. Palikhe
Keyword(s):  
Climate Change ◽  
Greenhouse Gases ◽  
Insect Pests ◽  
Agricultural Practices ◽  
Complex Problem ◽  
Pesticide Use ◽  
Pests And Diseases ◽  
Agriculture And Environment ◽  
Reduce Emissions ◽  
The Relationship

The use (and abuse) of pesticides has increased to combat insect-pests and diseases. However, the major causes concern of are the undesirable side effects of these chemicals on biodiversity, environment, food quality and human health .Climate change will have important implications for insect conservation and pest status. Climate and weather can substantially influence the development and distribution of insects. Most of the warming over the last 50 years is likely to have been due to man-made activities. Anthropogenically induced climatic change arising from increasing levels of atmospheric greenhouse gases would, therefore, be likely to have a significant effect on agricultural insect pests. Current best estimates of changes in climate indicate an increase in global mean annual temperatures of 1[o] C by 2025 and 3[o]C by the end of the next century. Such increases in temperature have a number of implications for temperature-dependent insect pests. The Assessment investigates the relationship between pesticide use and climate for crops that require relatively large amounts of pesticide. This paper describes such input-driven agriculture, the problem of pests and diseases and the unsustainable agricultural practices that it leads to, and the socio-economic and health externalities resulting in farmer's distress in pesticide hot spots. To protect ourselves, our economy, and our land from the adverse effects of climate change, we must ultimately dramatically reduce emissions of carbon dioxide and other greenhouse gases. The causes of anthropogenic climate change are broad and often difficult to address. There is no single solution to this complex problem, but numerous opportunities exist for reducing problems of climate change. The issue of climate change is one of the most profound challenges of our time, and we believe it is a challenge that can be met. The Journal of AGRICULTURE AND ENVIRONMENT Vol. 8, 2007, pp. 83-91

Food Safety on the Farm: Good Agricultural Practices and Good Handling Practices – Packing Operation Sanitation

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
Jesscia A. Lepper ◽  
Aswathy Sreedharan ◽  
Renée Goodrich Schneider ◽  
Keith R. Schneider
Keyword(s):  
Food Safety ◽  
Fruits And Vegetables ◽  
Agricultural Practices ◽  
Good Agricultural Practices ◽  
Produce Safety ◽  
Foreign Countries ◽  
Safety Rule ◽  
Handling Practices ◽  
Voluntary Program ◽  
Federal Guidelines

Good agricultural practices (GAPs) and good handling practices (GHPs) encompass the general procedures that growers, packers and processors of fresh fruits and vegetables should follow to ensure the safety of their product. GAPs usually deal with preharvest practices (i.e., in the field), while GHPs cover postharvest practices, including packing, storage and shipping. This factsheet covers GAPs relating to packing operation sanitation. There are seven other Florida Cooperative Extension factsheets in the ‘Food Safety on the Farm’ series that focus on specific aspects of the GAPs program and how they relate to Florida crops and practices. Under the new Food Safety Modernization Act (FSMA), GAPs are a foundation of the Produce Safety Rule (PSR). Other than for round tomatoes in Florida (T-GAPs regulation), GAPs have mainly been a voluntary program. Additionally the PSR mandates all non-exempt operations to follow these new FSMA federal guidelines (6), but all exempt commodities and for those producers exporting to foreign countries, GAPs may still be required. Both the mandatory PSR and GAPs aim to reduce the foodborne illness burden associated with produce.

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