scholarly journals Emission of Carbon Dioxide from the Dark Chestnut Soil in West Kazakhstan

2019 ◽  
Vol 9 (1) ◽  
pp. 6676-6680
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Agricultural Soils ◽  
Humus Content ◽  
Chestnut Soil ◽  
Anthropogenic Factors ◽  
Dark Chestnut Soil ◽  
Negative Effect ◽  
West Kazakhstan ◽  
Active Release

The necessity of studying and assessing emissions of carbon dioxide from the agricultural soils is related to the important role played by the soil in their formation. Active release of carbon dioxide shows changes in the content of the organic matter in the soil and its biological activity. Carbon dioxide emissions can be influenced both by biotic and anthropogenic factors. Due to the negative effect of grazing and arable plots on the soil respiration, unequal emission of carbon dioxide is noted. The research was aimed at assessing the dynamics of carbon dioxide emissions from the dark-chestnut soil, depending on the nature of the soil use in agriculture. The studies for determining the carbon dioxide flow rate were performed according to the standard variant of the closed dynamic chamber method. The results of studying the content and emission of carbon dioxide from the dark-chestnut soil of the agricultural lands in Western Kazakhstan are shown. The content and reserves of humus in the 100 cm layer of the studied soils are low, and the soil is characterized by low humus content. The total annual flow of carbon dioxide from the virgin lands is higher than that from the arable lands but is less than that from the pastures

scholarly journals An Examination of Green Credit Promoting Carbon Dioxide Emissions Reduction: A Provincial Panel Analysis of China

2021 ◽  
Vol 13 (13) ◽  
pp. 7148
Author(s):  
Wenjie Zhang ◽  
Mingyong Hong ◽  
Juan Li ◽  
Fuhong Li
Keyword(s):  
Carbon Dioxide ◽  
Carbon Emissions ◽  
Carbon Dioxide Emissions ◽  
Industrial Structure ◽  
Emissions Reduction ◽  
Green Finance ◽  
Carbon Emissions Reduction ◽  
Negative Effect ◽  
Emissions Intensity ◽  
The Impact

The implementation of green finance is a powerful measure to promote global carbon emissions reduction that has been highly valued by academic circles in recent years. However, the role of green credit in carbon emissions reduction in China is still lacking testing. Using a set of panel data including 30 provinces and cities, this study focused on the impact of green credit on carbon dioxide emissions in China from 2006 to 2016. The empirical results indicated that green credit has a significantly negative effect on carbon dioxide emissions intensity. Furthermore, after the mechanism examination, we found that the promotion impacts of green credit on industrial structure upgrading and technological innovation are two effective channels to help reduce carbon dioxide emissions. Heterogeneity analysis found that there are regional differences in the effect of green credit. In the western and northeastern regions, the effect of green credit is invalid. Quantile regression results implied that the greater the carbon emissions intensity, the better the effect of green credit. Finally, a further discussion revealed there exists a nonlinear correlation between green credit and carbon dioxide emissions intensity. These findings suggest that the core measures to promote carbon emission reduction in China are to continue to expand the scale of green credit, increase the technology R&D investment of enterprises, and to vigorously develop the tertiary industry.

Population Growth and Urbanization in Africa

2016 ◽  
pp. 282-297 ◽  
Author(s):  
Samuel Adams ◽  
Eric Evans Osei Opoku
Keyword(s):  
Carbon Dioxide ◽  
Population Growth ◽  
Carbon Dioxide Emissions ◽  
Age Groups ◽  
African Countries ◽  
Pooled Mean Group ◽  
Long Run ◽  
Negative Effect ◽  
Short Run ◽  
Sub Saharan

This study examined the effect of population growth and urbanization on the environment (carbon dioxide emissions) for 37 sub Saharan African countries based on 1980-2010 annual data. Using the Pooled Mean Group estimation technique, the findings of the study show that affluence and industrialization have negative effect on the environment (increases carbon dioxide emissions) while urbanization does not have a significant effect on carbon dioxide emissions. The population variable is significant only in the long run but insignificant in the short run. Also, after controlling for the different age groups, the results show that the more active age group (15-59) is positive and significantly related to carbon dioxide emissions.

scholarly journals The Paradoxical Relationship between Renewable Energy and Economic Growth: A Cross-National Panel Study, 1990-2013

2017 ◽  
Vol 23 (2) ◽  
pp. 540-564 ◽  
Author(s):  
Ryan P Thombs
Keyword(s):  
Economic Growth ◽  
Carbon Dioxide ◽  
Renewable Energy ◽  
Energy Consumption ◽  
Carbon Emissions ◽  
Carbon Dioxide Emissions ◽  
Total Carbon ◽  
Renewable Energy Consumption ◽  
Negative Effect ◽  
Cross National

This cross-national study employs a time-series cross-sectional Prais-Winsten regression model with panel-corrected standard errors to examine the relationship between renewable energy consumption and economic growth, and its impact on total carbon dioxide emissions and carbon dioxide emissions per unit of GDP. Findings indicate that renewable energy consumption has its largest negative effect on total carbon emissions and carbon emissions per unit of GDP in low-income countries. Contrary to conventional wisdom, renewable energy has little influence on total carbon dioxide emissions or carbon dioxide emissions per unit of GDP at high levels of GDP per capita. The findings of this study indicate the presence of a “renewable energy paradox,” where economic growth becomes increasingly coupled with carbon emissions at high levels of renewable energy, and the negative effect of economic growth on carbon emissions per unit of GDP lessens as renewable energy increases. These findings suggest that public policy should be directed at deploying renewable energy in developing countries, while focusing on non-or-de-growth strategies accompanied with renewable energy in developed nations.

scholarly journals Application of the Denitrification-Decomposition Model to Predict Carbon Dioxide Emissions under Alternative Straw Retention Methods

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Can Chen ◽  
Deli Chen ◽  
Jianjun Pan ◽  
Shu Kee Lam
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Agricultural Soils ◽  
Pore Space ◽  
Correlation Coefficients ◽  
Growth Period ◽  
Dndc Model ◽  
Mean Temperature ◽  
Straw Retention ◽  
Straw Incorporation

Straw retention has been shown to reduce carbon dioxide (CO2) emission from agricultural soils. But it remains a big challenge for models to effectively predict CO2emission fluxes under different straw retention methods. We used maize season data in the Griffith region, Australia, to test whether the denitrification-decomposition (DNDC) model could simulate annual CO2emission. We also identified driving factors of CO2emission by correlation analysis and path analysis. We show that the DNDC model was able to simulate CO2emission under alternative straw retention scenarios. The correlation coefficients between simulated and observed daily values for treatments of straw burn and straw incorporation were 0.74 and 0.82, respectively, in the straw retention period and 0.72 and 0.83, respectively, in the crop growth period. The results also show that simulated values of annual CO2emission for straw burn and straw incorporation were 3.45 t C ha−1 y−1and 2.13 t C ha−1 y−1, respectively. In addition the DNDC model was found to be more suitable in simulating CO2mission fluxes under straw incorporation. Finally the standard multiple regression describing the relationship between CO2emissions and factors found that soil mean temperature (SMT), daily mean temperature (Tmean), and water-filled pore space (WFPS) were significant.

Population Growth and Urbanization in Africa

2019 ◽  
pp. 1355-1370
Author(s):  
Samuel Adams ◽  
Eric Evans Osei Opoku
Keyword(s):  
Carbon Dioxide ◽  
Population Growth ◽  
Carbon Dioxide Emissions ◽  
Age Groups ◽  
African Countries ◽  
Pooled Mean Group ◽  
Long Run ◽  
Negative Effect ◽  
Short Run ◽  
Sub Saharan

This study examined the effect of population growth and urbanization on the environment (carbon dioxide emissions) for 37 sub Saharan African countries based on 1980-2010 annual data. Using the Pooled Mean Group estimation technique, the findings of the study show that affluence and industrialization have negative effect on the environment (increases carbon dioxide emissions) while urbanization does not have a significant effect on carbon dioxide emissions. The population variable is significant only in the long run but insignificant in the short run. Also, after controlling for the different age groups, the results show that the more active age group (15-59) is positive and significantly related to carbon dioxide emissions.

scholarly journals Composition, properties and specificity of the impact of bird droppings on the fertility of dark chestnut soil

2019 ◽  
pp. 43-47
Author(s):  
Gennadiy Nikolaevich Popov ◽  
Vladimir Petrovich Belogolovtsev ◽  
Aleksandr Nikiphorovich Danilov ◽  
Aleksandr Vladimirovich Letuchiy
Keyword(s):  
Chemical Elements ◽  
Humus Content ◽  
Chestnut Soil ◽  
Bird Droppings ◽  
Dark Chestnut Soil ◽  
Mobile Forms ◽  
High Doses ◽  
Composition Properties ◽  
The Impact ◽  
Nitrogen Phosphorus

The article presents analytical materials of studying the chemical composition and properties of bird droppings in the Pokrovskaya PTF LLC of the Engels District of the Saratov Region. Its various types: dry, litter, dense consistency, semi-liquid, liquid, drains are analyzed. The loss of chemical elements at perfect and impaired storage technology and ways to prevent them are identified. The most promising of them is thermal drying. The specificity of the impact of high doses of bird droppings on the fertility of the fields adjacent to the poultry complex was revealed. Its effect on the reaction of the soil solution, the humus content, mobile forms of nitrogen, phosphorus, potassium, sulfur and trace elements is shown.

Sign in / Sign up

Export Citation Format

Share Document