Carbon Dioxide and Nitrous Oxide Emissions from Naturally Occurring Sulfate-Based Saline Soils at Different Moisture Contents

Thapa, Resham Bahadur; Chatterjee, Amitava; Wick, Abbey F.; Butcher, Kirsten

doi:10.1016/s1002-0160(17)60453-3

Cited by 19 publications

(10 citation statements)

References 30 publications

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“…Most previous studies about the effect of soil salinity on soil respiration have been conducted in controlled laboratory experiments, with their results showing that any level of soil salinity could significantly suppress soil microbial respiration through ionic toxicity, osmotic stress or both. 22,[57][58][59] Similarly, our results also indicated that soil salinity inhibited soil microbial respiration. However, the difference compared to the previous studies was that soil respiration was slightly inhibited in 2020 and was significantly suppressed in 2021 under W1.…”

Section: Effects Of Irrigation Amount Water Salinity and Biochar Addi...supporting

confidence: 77%

Response of soil respiration and carbon budget to irrigation quantity/quality and biochar addition in a mulched maize field under drip irrigation

Chen,

Wang,

Tong

et al. 2023

J Sci Food Agric

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BACKGROUNDBiochar addition strongly alters net carbon (C) balance in agroecosystems. However, the effects of biochar addition on net C balance of maize field under various irrigation water quantities and qualities remains unclear. Thus, a field experiment combining two irrigation levels of full (W1) and deficit irrigation (W2 = 1/2 W1), two water salinity levels of fresh (S0, 0.71 g L‐1) and brackish water (S1, 4 g L‐1), and two biochar addition rates of 0 t ha‐1 (B0) and 60 t ha‐1 (B1) was conducted to investigate soil carbon dioxide (CO2) emissions, maize C sequestration, and net C sequestration.RESULTSCompared with W1, W2 reduced average cumulative CO2 emissions by 6.5% and 19.9% for 2020 and 2021, respectively. The average cumulative CO2 emissions under W1S1 treatments were 5.4% and 22.3% lower than W1S0 for 2020 and 2021, respectively, whereas W2S0 and W2S1 had similar cumulative CO2 emissions in both years. Biochar addition significantly increased cumulative CO2 emissions by 17.8‐23.5% for all water and salt treatments in 2020, and reduced average cumulative CO2 emissions by 11.9% for W1 but enhanced it by 8.0% for W2 in 2021. Except for W2S1, biochar addition effectively increased total maize C sequestration by 6.9‐14.8% for the other three treatments through ameliorating water and salt stress over the two years. Compared with W1S0, W1S1 did not affected net C sequestration, but W2 significantly decreased it. Biochar addition increased net C sequestration by 39.47‐43.65 t C ha‐1 for four water and salt treatments for the two years.CONCLUSIONThese findings demonstrate that biochar addition is an effective strategy to increase both crop C sequestration and soil C storage under suitable water‐saving irrigation methods in arid regions with limited freshwater resources.This article is protected by copyright. All rights reserved.

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Section: Effects Of Irrigation Amount Water Salinity and Biochar Addi...supporting

confidence: 77%

Response of soil respiration and carbon budget to irrigation quantity/quality and biochar addition in a mulched maize field under drip irrigation

Chen,

Wang,

Tong

et al. 2023

J Sci Food Agric

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“…There are many studies about the impact of salinity on N 2 O emission. Some indicated that the correlation was positive [13,15], while some suggested that it was negative [10,43]; some found no correlation [44,45]. In this study, N 2 O emission was highest in the plots that were treated with high salinity water and lowest in those with low salinity water in each regime in 2018, while highest in the plots that were treated with low salinity water and the lowest in those with high salinity water in 2017.…”

Section: Discussionmentioning

confidence: 99%

CO2 and N2O Emissions from Spring Maize Soil under Alternate Irrigation between Saline Water and Groundwater in Hetao Irrigation District of Inner Mongolia, China

Wang

Yang

Ren

et al. 2019

IJERPH

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Alternative irrigation between saline water and groundwater can alleviate shortages of available agricultural water while effectively slowing the adverse effects of saline water on the soil-crop system when compared with continuous irrigation with saline water and blending irrigation between saline water and groundwater. In 2018, we tested the effect on soil CO2 and N2O emissions by two types of irrigation regimes (alternating groundwater and saline water (GW-SW), and alternating groundwater, followed by two cycles of saline water (GW-SW-SW)) between groundwater and three levels of salinity of irrigation water (mineralization of 2 g/L, 3.5 g/L, and 5 g/L), analyzed the correlation between gas emissions and soil properties, calculated comprehensive global warming potential (GWP), and investigated the maize yield. The results show that, with the same alternate irrigation regime, cumulative CO2 emissions decreased with increasing irrigation water salinity, and cumulative N2O emissions increased. Cumulative CO2 emissions were higher in the GW-SW regime for the same irrigation water salinity, and cumulative N2O emissions were higher in the GW-SW-SW regime. The GW-SW-SW regime had less comprehensive GWP and maize yield as compared to the GW-SW regime. The 2 g/L salinity in both regimes showed larger comprehensive GWP and maize yield. The 3.5 g/L salinity under the GW-SW regime will be the best choice while considering that the smaller comprehensive GWP and the larger maize yield are appropriate for agricultural implication. Fertilizer type and irrigation amount can be taken into consideration in future research direction.

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“…Some studies have explored the impact of renewable energy consumption on CDE in BRICS countries. However, the method has yet to fully consider the possible cross-section correlation and heterogeneity in panel data of BRICS countries (Montoya Lupita et al, 2017;Thapa et al, 2017). Because of the slow development of new energy in China, backward clean energy technology, and low energy utilization efficiency, it is particularly urgent to change the coal-dominated energy structure.…”

Section: Introductionmentioning

confidence: 99%

Research on the path of practical cooperation between China and European Union countries under the environment of carbon neutrality and peak carbon dioxide emissions

Cai

2023

Front. Ecol. Evol.

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Globalization is increasing daily with the development of the world economy and society. International conflicts, cooperation, and interdependence in international environmental relations have become increasingly prominent, laying a theoretical and practical basis for international environmental cooperation. The ecological protection industries of China and the EU (European Union) are facing great development opportunities. Many EU member states have advantages in developing the environmental protection industry, which facilitates all-around cooperation in the environmental protection industry with my country. Based on the target policy background of PCDE (peak carbon dioxide emissions) and CN (carbon neutrality) and domestic and foreign research, this paper proposes a study on the practical cooperation path between China and EU countries. Based on international input–output data, an economic output CDE (carbon dioxide emission) matrix is constructed to characterize countries’ economic and CDE correlation, thus forming a global CDE network. The analysis shows that the contribution rate of energy structure effect and energy intensity fluctuates slowly, indicating a positive and negative alternation; Our government should adopt an active energy optimization policy, speed up the formulation of macro policies such as carbon tax on energy-consuming industries, continuously optimize the energy structure and reduce the CDE intensity. By 2023, China’s unit GDP will remain the same by 40–50% compared with 2022. Furthermore, the practical cooperation path proposed in this paper can provide valuable insights for policymakers and stakeholders in both China and the EU to promote the development of the environmental protection industry and achieve the common goal of carbon neutrality. The findings of this study can be used to inform the design and implementation of policies and initiatives aimed at reducing carbon emissions, improving energy efficiency, and promoting sustainable economic growth. Additionally, the international CDE network constructed in this study can serve as a useful tool for monitoring and evaluating the effectiveness of environmental policies and initiatives at the international level. Overall, this paper contributes to the scientific understanding of the complex relationship between economic development and environmental protection and provides practical guidance for promoting international cooperation in the environmental protection industry.

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Carbon Dioxide and Nitrous Oxide Emissions from Naturally Occurring Sulfate-Based Saline Soils at Different Moisture Contents

Cited by 19 publications

References 30 publications

Response of soil respiration and carbon budget to irrigation quantity/quality and biochar addition in a mulched maize field under drip irrigation

Response of soil respiration and carbon budget to irrigation quantity/quality and biochar addition in a mulched maize field under drip irrigation

CO2 and N2O Emissions from Spring Maize Soil under Alternate Irrigation between Saline Water and Groundwater in Hetao Irrigation District of Inner Mongolia, China

Research on the path of practical cooperation between China and European Union countries under the environment of carbon neutrality and peak carbon dioxide emissions

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