Field experiments on greenhouse gas emissions and nitrogen and phosphorus losses from rice paddy with efficient irrigation and drainage management

Peng, Shizhang; Sung-Bum, Yang; Xu, Junzeng; HuanZhi, Gao

doi:10.1007/s11431-011-4310-7

Cited by 39 publications

(20 citation statements)

References 14 publications

(16 reference statements)

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“…There are numerous studies on the effects of flooding on N and carbon (C) cycling in rice paddy fields (Nguyen et al, 2015;Peng et al, 2011;Pereida et al, 2013;Zhang et al, 2012;Zhang et al, 2015), riparian zones (Baldwin and Mitchell, 2000) and wetlands (Unger et al, 2009;Wang et al, 2013). In contrast, however, there are fewer published studies on the impacts of extreme flooding for temperate agricultural soils, particularly those with no previous history of flooding and under contrasting management regimes (Hansen et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Comparative effects of prolonged freshwater and saline flooding on nitrogen cycling in an agricultural soil

Sánchez‐Rodríguez

Chadwick

Tatton

et al. 2018

Applied Soil Ecology

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Due to climate change, the frequency and duration of flood events are predicted to increase in many regions of the world. This is expected to cause large changes in soil functioning and to a progressive decline in soil quality such as reduced rates of nutrient cycling, enhanced greenhouse gas emissions and loss of soil biodiversity. There is a knowledge gap, however, on how temperate agricultural soils under different management practices (e.g. manure application) respond to prolonged river or coastal flooding. The main objective of this work was to determine the effects of a simulated prolonged flooding with saline and freshwater on soil N cycling, following application of a low C:N organic amendment (broiler litter) at two temperatures, representative of a winter and a spring flood event. Using laboratory mesocosms we simulated prolonged winter (6 °C) and spring (14 °C) flooding of soil amended with broiler litter. We also compared the effects of inundation with either river (freshwater) or coastal (saline) water. An agricultural grassland soil (Eutric Cambisol) was subjected to different combinations of treatments (flood with fresh or saline water, winter vs spring temperatures, with/without poultry manure). The impact of these treatments on soil solution N dynamics, greenhouse gas emissions (CO2, CH4, N2O) and microbial community structure (by PLFA analysis) were evaluated over an 11 week simulated flood event followed by an 8 week soil recovery period (without flood). Overall, potential losses of NH4 + and cumulative GHG emissions were increased by flooding and the presence of manure. CH4 emissions were found to dominate under freshwater flooding conditions and N2O under saline flooding. Significant releases of GHG occurred during both flooding and after floodwater removal. Temperature was less influential on regulating GHG under the different treatments. These releases in GHG were associated with disruption in N cycling and changes in soil microbial composition and these changes persisted after floodwater removal. Extreme flooding negatively impacts soil functioning, however, the magnitude of any changes remain critically dependent on flood 3 duration and source of flood water, and management conditions. Further work is required at the field scale to understand the molecular basis of the responses observed in this study. Highlights • NH4 + losses and GHG emissions were increased by flooding in the presence of manure. • CH4 is mostly emitted in freshwater flooding and N2O in saline flooding. • Temperature was less important in regulating GHG emissions but did affect N cycling under flooding. • Flooding induces prolonged shifts in the composition of the soil microbial community. • Extreme flooding events negatively impact soil functioning.

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Section: Introductionmentioning

confidence: 99%

Comparative effects of prolonged freshwater and saline flooding on nitrogen cycling in an agricultural soil

Sánchez‐Rodríguez

Chadwick

Tatton

et al. 2018

Applied Soil Ecology

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“…Indices based on leaf or canopy temperature are widely used in crop water deficit diagnosis since 1970's with the advent of hand-held thermometers Jackson et al, 1981;Jones, 2004;Gontia and Tiwari, 2008;Peng et al, 2011), such as stress degree days (SDD) Patil et al, 2014), canopy temperature variability (CTV) (Clawson and Blad, 1982;Gonzalez-Dugo et al, 2006) and crop water stress index (CWSI). CWSI has been applied in many different crops, such as wheat (Yuan et al, 2004;Gontia and Tiwari, 2008;Li et al, 2010), cotton (Silva and Rao, 2005;O'shaughnessy et al, 2011), maize (Anda, 2009;Li et al, 2010;Taghvaeian et al, 2012), bean (Erdem et al, 2006b), and some vegetables (Cremona et al, 2004;Simsek et al, 2005;Erdem et al, 2010;Aladenola and Madramootoo, 2014;Rud et al, 2014) or fruits (Erdem et al, 2006a;Paltineanu et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…With increasing water scarcity, water saving irrigation (WSI) techniques are widely used in rice paddies (Belder et al, 2004;Uphoff et al, 2010;Abbasi and Sepaskhah, 2011;Kato et al, 2011) exposing rice plants to a certain degree of water deficit. Non-flooded controlled irrigation (CI), uses the ratio of soil moisture content to the saturated one for water deficit diagnosis, is widely used WSI technique in China (Mao, 2002;Peng et al, 2011). Under CI irrigation, rice is cultivated under non-flooding condition in about half of the rice season.…”

Section: Introductionmentioning

confidence: 99%

Diagnosing Crop Water Stress of Rice using Infra-red Thermal Imager under Water Deficit Condition

Xu¹,

YuPing²,

Liu³

et al. 2016

IJAB

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A thermal imager was used for measuring the canopy temperature to calculate crop water stress index (CWSI) of rice under water deficit condition. The CWSI varied diurnally with peaks appeared at noon, and soil water deficit led to higher CWSI values during noon. Transpiration rate (Tr), stomatal conductance (gs) and net photosynthetic rate (Pn) were high at low CWSI, and reduced with increasing CWSI. The relationship between CWSI and Pn, Tr or gs at noon was described by quadratic polynomial equations. At critical noon, CWSI values for the decline trend in Pn (0.303, 0.385 and 0.446 at tillering, panicle initiation to booting, milk to soft dough stage) were higher than for decline in Tr and gs. Assuming a 5% reduction in Pn from maximum is moderate water deficit, the critical CWSI values were 0.420, 0.472 and 0.536 at tillering, panicle initiation to booting and milk to soft dough stages. CWSI at 14:00 decreased significantly with increasing relative soil moisture contents. There was a slight difference between the linear relations under different vapor pressure deficit (VPD) conditions. The critical relative soil moisture contents for a 5% reduction in Pn were 1.57%, 1.18% and 1.27% higher under high VPD than low VPD conditions. It implied that rice water status was determined in conjunction with field soil moisture content and air aridity. The water deficit diagnosis based on canopy temperature tracked by thermal infrared imager is a promising method in reflecting the conjuncted function of soil moisture deficit and air aridity on crop water status.

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“…And the mini-lysimeter (400 mm in diameter and 600 mm in depth) with closed bottom was installed inside the plot to measure evapotranspiration from the field and plants [24]; is the variation of soil water content at crop root depth (mm). During the experimental period, the variation in soil water storage at 0-100 mm, 100-300 mm, and 300-500 mm soil depth in each treatment was continuously measured when the water depth did not exist at the topsoil.…”

Section: Sample Collection and Measurementmentioning

confidence: 99%

Improving Water Productivity and Reducing Nutrient Losses by Controlled Irrigation and Drainage in Paddy Fields

Gao¹,

Yu²,

Wang³

et al. 2018

Pol. J. Environ. Stud.

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Controlled irrigation and drainage (CID) has received considerable attention as a reliable management practice for improving water quality and water productivity in rice production. This study aimed to evaluate the effects of CID on water productivity, nitrogen, and phosphorus losses in paddy fields. Treatments include alternate wetting and drying (AWD; lower limit of irrigation to-200 mm and upper limit of ponding water depth after rainfall to 60 mm), CID-I (lower limit of irrigation to-200 mm and upper limit of ponding water depth after rainfall to 200 mm), and CID-II (lower limit of irrigation to-500 mm and upper limit of ponding water depth after rainfall to 200 mm). Results showed that CID reduced irrigation water without a significant impact on grain yields and increased the irrigation water productivity by 14.6-51.5% compared with AWD. However, the percolation of CID may be increased, especially in a wetting year. The application of CID-II by combining yield with irrigation water productivity could be suitable and beneficial to rice crops. The average total nitrogen (TN) and total phosphorus (TP) concentrations of CID presented similar values or were significantly increased relative to AWD, indicating that the significant decreases in nutrient loads under CID were primarily due to reductions in surface runoff rather than changes in concentration. Ammonium nitrogen (NH 4 +-N) concentrations were clearly increased after fertilizer application in percolation water. Compared with AWD, the NH 4 +-N, TN, and TP leaching losses of CID-I were increased. The nitrogen and phosphorus leaching losses of CID-II were significantly increased relative to AWD and CID-I because of high nutrient concentrations and severe preferential flow. Therefore, CID potentially increased nitrogen and phosphorus loading to groundwater

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Field experiments on greenhouse gas emissions and nitrogen and phosphorus losses from rice paddy with efficient irrigation and drainage management

Cited by 39 publications

References 14 publications

Comparative effects of prolonged freshwater and saline flooding on nitrogen cycling in an agricultural soil

Comparative effects of prolonged freshwater and saline flooding on nitrogen cycling in an agricultural soil

Diagnosing Crop Water Stress of Rice using Infra-red Thermal Imager under Water Deficit Condition

Improving Water Productivity and Reducing Nutrient Losses by Controlled Irrigation and Drainage in Paddy Fields

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