Greenhouse gas emission from direct seeding paddy field under different rice tillage systems in central China

Shariati, Ahmad; Li, Chengfang; Dai, Guangzhao; Zhan, Mei; Wang, Jinping; Pan, Shenggang; Cao, Cougui

doi:10.1016/j.still.2009.09.005

Cited by 169 publications

(67 citation statements)

References 61 publications

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“…A similar seasonal pattern of methane emissions with the two microbial indexes was observed, this also proved the important role of rice plant growth for seasonal transportation of methane to the atmosphere. This seasonal emission pattern was similar to the findings in central China (Ahmad et al 2009), Japan (Minamikawa and Sakai 2005), and the USA (Wassmann et al 1994). This pattern is likely related to temperature change, soil moisture regime, soil redox condition, as well as rice growing stage (Hou et al 2000).…”

Section: Seasonal Variationsupporting

confidence: 87%

Relationships between methane emissions and soil microorganisms in a double-rice field in southern subtropical China

Qin

Wan

et al. 2012

Journal of Integrative Environmental Sciences

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Section: Seasonal Variationsupporting

confidence: 87%

Relationships between methane emissions and soil microorganisms in a double-rice field in southern subtropical China

Qin

Wan

et al. 2012

Journal of Integrative Environmental Sciences

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“…As found in previous research, fertilizer management and conservation tillage showed great potential in mitigating GHG in the rice system [50,51]. Our BWS survey revealed that for rice farmers in Hubei province, the top three applicable MMs are "applying soil testing and formulated fertilization (STFF)", "applying controlled-release fertilizers" and "returning stubble and straw to field".…”

Section: Discussionsupporting

confidence: 52%

Evaluation of GHG Mitigation Measures in Rice Cropping and Effects of Farmer’s Characteristics: Evidence from Hubei, China

Tong

Zhang

2017

Sustainability

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Greenhouse Gas emissions from agricultural activities, such as rice cropping, have been proven to be an important cause of climate change, with constant barriers and constraints in the implementation and promotion of mitigation measures among farmers in China. However, there has been a lack of research focusing on specific mitigation measures and their characteristics. In this paper, we applied the expert assessment and best-worst scaling method to evaluate mitigation measures in rice cropping from the perspectives of effectiveness and applicability. The results showed that no mitigation measure in rice cropping was best from both an effectiveness and applicability viewpoint. However, the study found that "reducing the use of chemical fertilizers" was the most effective one, while "applying soil testing and formulated fertilization" was the most applicable one. Additionally, the older farmers spending more time on non-agricultural jobs and farming more plots of land were more likely to believe that mitigation measures related to the management of input elements would be more applicable compared to soil and water management or some types of new science and technology. Finally, we suggested that the agricultural extension agencies should popularize input elements management such as improvement of fertilizer or seeds among older farmers, and meanwhile promote soil cultivation management and new technologies for agriculture in areas where the land is more concentrated such as plains.

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“…Presently, many studies on the N cycle process in wetland ecosystems have been conducted, and these researches were related to paddy fields (Ahmad et al, 2009;Yang S S et al, 2009), freshwater marshes (Zhang et al, 2007;van Damme et al, 2009), salt marshes (Eriksson et al, 2003;Boyer and Fong, 2005), and mangrove marshes (Trott et al, 2004;Naidoo, 2009). Some researchers adopted stable isotope technique to quantify the movement, transformation and fate of N in wetland ecosystems (Rückauf et al, 2004;Fair and Heikoop, 2006).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen biological cycle characteristics of seepweed (Suaeda salsa) wetland in intertidal zone of Huanghe (Yellow) River estuary

et al. 2012

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From April 2008 to November 2009, the nitrogen (N) cycle of plant-soil system in seepweed (Suaeda salsa) wetland in the intertidal zone of the Huanghe (Yellow) River estuary was studied. Results showed that soil N had significant seasonal fluctuations and vertical distribution, and the net N mineralization rates in topsoil were significantly different in growing season (p < 0.01). The N/P ratio (9.87 ± 1.23) of S. salsa was less than 14, indicating that plant growth was limited by N. The N accumulated in S. salsa litter at all times during decomposition, which was ascribed to the N immobilization by microbes from the environment. Soil organic N was the main N stock of plant-soil system, accounting for 97.35% of the total N stock. The N absorption and utilization coefficients of S. salsa were very low (0.0145 and 0.3844, respectively), while the N cycle coefficient was high (0.7108). The results of the N turnovers among compartments of S. salsa wetland showed that the N uptake amount of aboveground part and root were 7.764 g/m 2 and 4.332 g/m 2 , respectively. The N translocation amounts from aboveground part to root and from root to soil were 3.881 g/m 2 and 0.626 g/m 2 , respectively. The N translocation amount from aboveground living body to litter was 3.883 g/m 2 , the annual N return amount from litter to soil was more than 0.125(-) g/m 2 (minus represented immobilization), and the net N mineralization amount in topsoil (0-15 cm) in growing season was 1.190 g/m 2 . The assessment of N biological cycle status of S. salsa wetland indicated that N was a very important limiting factor and the ecosystem was situated in unstable and vulnerable status. The S. salsa was seemingly well adapted to the low-nutrient status and vulnerable habitat, and the N quantitative relationships determined in the compartment model might provide scientific base for us to reveal the special adaptive strategy of S. salsa to the vulnerable habitat in the following studies.

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Greenhouse gas emission from direct seeding paddy field under different rice tillage systems in central China

Cited by 169 publications

References 61 publications

Relationships between methane emissions and soil microorganisms in a double-rice field in southern subtropical China

Relationships between methane emissions and soil microorganisms in a double-rice field in southern subtropical China

Evaluation of GHG Mitigation Measures in Rice Cropping and Effects of Farmer’s Characteristics: Evidence from Hubei, China

Nitrogen biological cycle characteristics of seepweed (Suaeda salsa) wetland in intertidal zone of Huanghe (Yellow) River estuary

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