Effects of multi-cropping system on temporal and spatial distribution of carbon and nitrogen footprint of major crops in China

Chen, Zhongdu; Xu, Chenping; Ji, Long; Feng, Jing; Li, Fengbo; Zhou, Xiyue; Fang, Fuping

doi:10.1016/j.gecco.2019.e00895

Cited by 34 publications

(43 citation statements)

References 37 publications

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“…Table 3 showed that N 2 O and NH 3 were the two dominant components of GNrEs, accounting for 39.7-53.1 % and 30.1-42.8 %, respectively. These ratios are in accordance with Chen et al (2020) who reported on one-year winter wheat/summer maize rotation system in the Northern Central Region of China. In addition, the high amounts of human feces slurry signi cantly increased the values of GNrEs and GNrI, indicating that the use of human feces neither decreases the emission of gaseous reactive nitrogen nor increases the yields of vegetables.…”

Section: Effects Of Different Fertilization Strategies On Gnressupporting

confidence: 92%

Reactive Nitrogen Releases And Nitrogen Footprint During The Life-Cycles of Intensive Vegetable Production Affected By Human Feces Slurry Substitution

Yang

Tao

Zhang

et al. 2021

Preprint

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Evaluating the sustainability of vegetable production is crucial to secure future food supply. A two-year field study of four different vegetable crops was performed to investigate the effects of inorganic fertilizer and human feces slurry at different ratios on vegetable yields, reactive gaseous nitrogen emissions (GNrEs), reactive nitrogen (Nr) footprint and net ecosystem-economic income (NEEI) by using life-cycle analysis. Four fertilization strategies were studied, including: CK (no fertilization); CF (inorganic fertilization); CHF1 (human feces slurry/inorganic fertilizer, N ratio=1:7); and CHF2 (human slurry/inorganic fertilizer, N ratio=1:3). Results showed that compared with CF treatment, both CHF1 and CHF2 treatments increased the N2O+NO emissions by 11.8 % and 32.4 % on average, while decreased the vegetable yields by 6.7 % and 7.4 %, respectively. Moreover, the addition of human feces slurry increased the proportions of Nr footprint by 6.6 % (CHF1) and 2.9 % (CHF2) in comparison with CF treatment group. However, although CHF2 treatment significantly increased the values of GNrEs and reactive gaseous nitrogen intensity (GNrI) by 8.4 % and 12.5 %, respectively, in relation to those in CF treatment group, it still increased farmers’ income by 16,404 CNY ha−1. These findings suggest that although human feces slurry incorporation could not mitigate Nr releases, the appropriate ratio of inorganic fertilizer and human feces slurry (CHF2) is able to improve net economic income (NEI) and NEEI during intensive vegetable production. Nevertheless, the relationship between combinatorial treatment of inorganic fertilizer and human feces slurry and mitigation of Nr release should be explored further.

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Section: Effects Of Different Fertilization Strategies On Gnressupporting

confidence: 92%

Reactive Nitrogen Releases And Nitrogen Footprint During The Life-Cycles of Intensive Vegetable Production Affected By Human Feces Slurry Substitution

Yang

Tao

Zhang

et al. 2021

Preprint

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“…Xue et al [105], indicated that the NFs of the early, late, and double rice in Southern China were 10.47, 10.89, and 10.68 g Neq kg −1 yield, respectively. Chen et al [22], using the LCA method, indicated that the NFs were 11.6, 13.4, and 15.4 g Neq kg −1 yield for double rice, rice-wheat, and wheatmaize, respectively. The NF of the present study (Table 5) was very low compared with that of the above studies.…”

Section: Reactive Nitrogen Emissions and Nitrogen Footprints Of Of An...mentioning

confidence: 99%

“…In addition, the NF is a new footprint concept that was introduced after the concepts of ecological footprint, CF, and WF. The NF was developed to quantitatively assess the influence of human production and lifestyle on reactive nitrogen (Nr), all nitrogen species (N2O, ammonia [NH3] volatilization, and nitrate leaching) except N2 emissions to the environment per ton of products [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Carbon, Nitrogen and Water Footprints of Organic Rice and Conventional Rice Production over 4 Years of Cultivation: A Case Study in the Lower North of Thailand

Arunrat

Sereenonchai

Chaowiwat³

et al. 2022

Agronomy

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An integrated method is required for comprehensive assessment of the environmental impacts and economic benefits of rice production systems. Therefore, the objective of this study was to apply different footprinting approaches (carbon footprint (CF), nitrogen footprint (NF), water footprint (WF)) and determine the economic return on organic farming (OF) and conventional rice farming (CVF) at the farm scale. Over the 4-year study period (2018–2021), the results showed lower net greenhouse gas (GHG) emissions in OF (3289.1 kg CO2eq ha−1 year−1) than in CVF (4921.7 kg CO2eq ha−1 year−1), indicating that the use of OF can mitigate the GHG emissions from soil carbon sequestration. However, there was a higher CF intensity in OF (1.17 kg CO2eq kg−1 rice yield) than in CVF (0.93 kg CO2eq kg−1 rice yield) due to the lower yield. The NF intensities of OF and CVF were 0.34 and 11.94 kg Neq kg−1 rice yield, respectively. The total WF of CVF (1470.1 m3 ton−1) was higher than that in OF (1216.3 m3 ton−1). The gray water in CVF was significantly higher than that in OF due to the use of chemical fertilizers, herbicides, and pesticides. Although the rice yield in OF was nearly two times lower than that in CVF, the economic return was higher due to lower production costs and higher rice prices. However, more field studies and long-term monitoring are needed for future research.

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“…In some studies, it has been considered equal to P use. [205,207] Water use and/or scarcity and pollution…”

Section: Environmental Concern Indicators and Definition Relevance And Comments Referencesmentioning

confidence: 99%

Indicators and Recommendations for Assessing Sustainable Healthy Diets

Aldaya

Ibáñez

Domínguez-Lacueva

et al. 2021

Foods

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Research coupling human nutrition and sustainability concerns is a rapidly developing field, which is essential to guide governments’ policies. This critical and comprehensive review analyzes indicators and approaches to “sustainable healthy diets” published in the literature since this discipline’s emergence a few years ago, identifying robust gauges and highlighting the flaws of the most commonly used models. The reviewed studies largely focus on one or two domains such as greenhouse gas emissions or water use, while overlooking potential impact shifts to other sectors or resources. The present study covers a comprehensive set of indicators from the health, environmental and socio-economic viewpoints. This assessment concludes that in order to identify the best food option in sustainability assessments and nutrition analysis of diets, some aspects such as the classification and disaggregation of food groups, the impacts of the rates of local food consumption and seasonality, preservation methods, agrobiodiversity and organic food and different production systems, together with consequences for low-income countries, require further analysis and consideration.

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Effects of multi-cropping system on temporal and spatial distribution of carbon and nitrogen footprint of major crops in China

Cited by 34 publications

References 37 publications

Reactive Nitrogen Releases And Nitrogen Footprint During The Life-Cycles of Intensive Vegetable Production Affected By Human Feces Slurry Substitution

Reactive Nitrogen Releases And Nitrogen Footprint During The Life-Cycles of Intensive Vegetable Production Affected By Human Feces Slurry Substitution

Carbon, Nitrogen and Water Footprints of Organic Rice and Conventional Rice Production over 4 Years of Cultivation: A Case Study in the Lower North of Thailand

Indicators and Recommendations for Assessing Sustainable Healthy Diets

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