CO2 and N2O emissions from Lou soils of greenhouse tomato fields under aerated irrigation

Hou, Haijun; Chen, Hui; Cai, Huanjie; Yang, Fan; Li, Dan; Fangtong, Wang

doi:10.1016/j.atmosenv.2016.02.027

Cited by 47 publications

(48 citation statements)

References 40 publications

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“…However, its increase began to slow from the −20 cm mark where the concentration had exceeded 8.0×10 4 ppm. This result was opposite to that of Hou et al (2016) who found that CO 2 emissions increased under conditions of sufficient oxygen [18]. This difference in result occurred because CO 2 emissions are not equal to the CO 2 concentration.…”

Section: Resultscontrasting

confidence: 75%

Evaluation of gaseous concentrations, bacterial diversity and microbial quantity in different layers of deep litter system

Wang

et al. 2016

Asian-Australas J Anim Sci

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ObjectiveAn experiment was conducted to investigate the environment of the deep litter system and provided theoretical basis for production.MethodsThe bedding samples were obtained from a pig breeding farm and series measurements associated with gases concentrations and the bacterial diversity as well as the quantity of Escherichia coli, Lactobacilli, Methanogens were performed in this paper.ResultsThe concentrations of CO2, CH4, and NH3 in the deep litter system increased with the increasing of depth while the N2O concentrations increased fiercely from the 0 cm to the −10 cm depth but then decreased beneath the −10 cm depth. Meanwhile, the Shannon index, the dominance index as well as the evenness index at the −20 cm layer was significantly different from the other layers (p<0.05). On the other hand, the quantity of Escherichia coli reached the highest value at the surface beddings and there was a significant drop at the −20 cm layer with the increasing depth. The Lactobacilli numbers increased with the depth from 0 cm to −15 cm and then decreased significantly under the −20 cm depth. The expression of Methanogens reached its largest value at the depth of −35 cm.ConclusionThe upper layers (0 cm to −5 cm) of this system were aerobic, the middle layers (−10 cm to −20 cm) were micro-aerobic, while that the bottom layers (below −20 cm depth) were anaerobic. In addition, from a standpoint of increasing the nitrification pathway and inhibiting the denitrification pathway, it should be advised that the deep litter system should be kept aerobic.

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Section: Resultscontrasting

confidence: 75%

Evaluation of gaseous concentrations, bacterial diversity and microbial quantity in different layers of deep litter system

Wang

et al. 2016

Asian-Australas J Anim Sci

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“…2). Hou et al (2016) showed that aeration irrigation can increase soil respiration and promote the volatilization of soil CO 2 , but in our study, the soil respiration intensity of the aeration treatment was lower than that of CK treatment from 10:00 AM to 12:00 PM after aeration treatment, due to aeration treatment promoting the exchange of gas in the root zone soil and decreasing the CO 2 content of soil in the root region. After that, the soil respiration intensity of the aeration treatment increased rapidly; this result is consistent with Hou et al (2016).…”

Section: Discussioncontrasting

confidence: 74%

Aeration Irrigation Can Improve Growth of Table Grape cv. Red Globe (Vitis vinifera L.) in Greenhouse

Zhao¹,

Sun²,

Sheng³

et al. 2019

horts

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Aeration through subsurface drip irrigation (SDI) can promote plant growth and increase crop yield; however, more research is focused on annual crops, and there are few studies on perennial crops. We have studied a new type of SDI (SDI with tanks) suitable for cultivation and production of perennial fruit trees and photovoltaic aeration device in greenhouse. The results showed that aeration irrigation promoted the growth of new leaves, fine roots, and new branches of grape, regulated O 2 /CO 2 content in rhizosphere soil, and accelerated air exchange in rhizosphere soil. This study showed that aeration irrigation did not change the structure of bacteria and fungi but significantly increased the abundance of aerobic bacteria, such as Nitrospira and Cytophagia. Moreover, it promoted the increase of Pseudomonas and Aspergillus related to phosphate solubilization, that of Bacillus related to potassium solubilization, and that of Fusarium related to organic matter (OM) decomposition. This study shows that aeration irrigation through SDI with tanks can promote grape growth, which may be related to the ability of aeration irrigation to change the gas composition of rhizosphere soil, optimize the structure of rhizosphere soil microorganism.

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“…As presented in Figure 6, soil respiration showed fluctuated patterns during the whole tomato growing period, which varied from 139.19 to 748.64 mg·m −2 ·h −1 among treatments. Ranges of soil respiration in the present study was similar to the results of Hou et al [10] but was higher than the research of the same tomato cultivations [9]. Differences might be the results of different irrigation amount and weather condition based on the year of cultivation.…”

Section: Soil Respirationsupporting

confidence: 83%

“…Previously, studies on drivers of soil respiration have been largely conducted on soil water content, temperature, and the interaction of these two parameters [9,[11][12][13][14]. For AI treatment, a close correlation between soil CO 2 fluxes with soil water content and temperature has been confirmed [9,10]. Soil microbes and enzymes as biocatalysts for all biochemical reactions in the soil would decompose and Table 1.…”

Section: Introductionmentioning

confidence: 99%

“…Soil respiration, originating primarily from heterotrophic respiration and autotrophic respiration [7,8], is a principal component in the global carbon cycle. A few studies have reported an increase of soil respiration under AI [6,9,10], while the cause of CO 2 release needs to be further explored. Previously, studies on drivers of soil respiration have been largely conducted on soil water content, temperature, and the interaction of these two parameters [9,[11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Irrigation Combined with Aeration Promoted Soil Respiration through Increasing Soil Microbes, Enzymes, and Crop Growth in Tomato Fields

et al. 2019

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Soil respiration (Rs) is one of the major components controlling the carbon budget of terrestrial ecosystems. Aerated irrigation has been proven to increase Rs compared with the control, but the mechanisms of CO2 release remain poorly understood. The objective of this study was (1) to test the effects of irrigation, aeration, and their interaction on Rs, soil physical and biotic properties (soil water-filled pore space, temperature, bacteria, fungi, actinomycetes, microbial biomass carbon, cellulose activity, dehydrogenase activity, root morphology, and dry biomass of tomato), and (2) to assess how soil physical and biotic variables control Rs. Therefore, three irrigation levels were included (60%, 80%, and 100% of full irrigation). Each irrigation level contained aeration and control. A total of six treatments were included. The results showed that aeration significantly increased total root length, dry biomass of leaf, stem, and fruit compared with the control (p < 0.05). The positive effect of irrigation on dry biomass of leaf, fruit, and root was significant (p < 0.05). With respect to the control, greater Rs under aeration (averaging 6.2% increase) was mainly driven by soil water-filled pore space, soil bacteria, and soil fungi. The results of this study are helpful for understanding the mechanisms of soil CO2 release under aerated subsurface drip irrigation.

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CO2 and N2O emissions from Lou soils of greenhouse tomato fields under aerated irrigation

Cited by 47 publications

References 40 publications

Evaluation of gaseous concentrations, bacterial diversity and microbial quantity in different layers of deep litter system

Evaluation of gaseous concentrations, bacterial diversity and microbial quantity in different layers of deep litter system

Aeration Irrigation Can Improve Growth of Table Grape cv. Red Globe (Vitis vinifera L.) in Greenhouse

Irrigation Combined with Aeration Promoted Soil Respiration through Increasing Soil Microbes, Enzymes, and Crop Growth in Tomato Fields

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