2016
DOI: 10.1111/gcb.13185
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Methane and nitrous oxide emissions under no‐till farming in China: a meta‐analysis

Abstract: No-till (NT) practices are among promising options toward adaptation and mitigation of climate change. However, the mitigation effectiveness of NT depends not only on its carbon sequestration potential but also on soil-derived CH4 and N2O emissions. A meta-analysis was conducted, using a dataset involving 136 comparisons from 39 studies in China, to identify site-specific factors which influence CH4 emission, CH4 uptake, and N2O emission under NT. Comparative treatments involved NT without residue retention (N… Show more

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Cited by 133 publications
(83 citation statements)
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References 65 publications
(142 reference statements)
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“…Here, we show that agricultural intensification can go hand in hand with greenhouse gas mitigation. Other mitigation practices advocated to curb CH 4 emissions from rice paddies include mid‐season drainage, intermittent irrigation, no‐till, and the use of alternative fertilizers (Hussain et al., ; Linquist et al., ; Zhao et al., ). However, these practices can result in yield losses (Pittelkow et al., ), are labor‐intensive, and their applicability varies among rice cropping systems and countries (Bodelier, ).…”
Section: Discussionmentioning
confidence: 99%
“…Here, we show that agricultural intensification can go hand in hand with greenhouse gas mitigation. Other mitigation practices advocated to curb CH 4 emissions from rice paddies include mid‐season drainage, intermittent irrigation, no‐till, and the use of alternative fertilizers (Hussain et al., ; Linquist et al., ; Zhao et al., ). However, these practices can result in yield losses (Pittelkow et al., ), are labor‐intensive, and their applicability varies among rice cropping systems and countries (Bodelier, ).…”
Section: Discussionmentioning
confidence: 99%
“…Effects of tillage intensity on soil biological properties and soil biodiversity are also of great interest because firstly, many soil functions are mediated by biological activities and secondly, soil organisms are often used as indicators of the status or “health” of soils (Briones, ; Doube & Schmidt, ; Capelle, Schrader, & Brunotte, ). In the case of arable land, much research has focussed on the type, depth, frequency and intensity of soil cultivation practices as drivers of environmental impacts, especially in relation to greenhouse gas balances (Lugato, Bampa, Panagos, Montanarella, & Jones, ; Six et al., ; Zhao et al., ).…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, integrating assessment on both N 2 O emissions and crop yield is essential in optimizing cropping practices. Although many studies have evaluated the impact and mitigation potential of cropping practices on N 2 O emission [15][16][17][18][19][20][21][22], few studies have been linked to crop yield [23][24][25]. Recent studies suggest that comprehensive assessments of cropping practices per unit yield (yield-scaled) rather than land area (area-scaled) could benefit sustainable intensification of cropping practices and policy selection with a trade-off of N 2 O emission mitigation and food security [23,24,26].…”
Section: Introductionmentioning
confidence: 99%