Linking dissolved organic carbon cycling to organic carbon fluxes in rice paddies under different water management practices

被引:75
作者
Said-Pullicino, Daniel [1 ]
Miniotti, Eleonora F. [1 ,3 ]
Sodano, Marcella [1 ]
Bertora, Chiara [2 ]
Lerda, Cristina [1 ]
Chiaradia, Enrico A. [4 ]
Romani, Marco [3 ]
Cesari de Maria, Sandra [4 ]
Sacco, Dario [2 ]
Celi, Luisella [1 ]
机构
[1] Univ Turin, Soil Biogeochem, Dept Agr Forest & Food Sci, Largo Paolo Braccini 2, I-10095 Grugliasco, TO, Italy
[2] Univ Turin, Environm Agron, Dept Agr Forest & Food Sci, Grugliasco, Italy
[3] Ente Nazl Risi, Rice Res Ctr, Castello Dagogna, Italy
[4] Univ Milan, Dept Agr & Environm Sci Prod Landscape Agroenergy, Milan, Italy
关键词
Organic carbon fluxes; Soil redox conditions; Reductive dissolution; Surface waters; Subsoil; Methane emissions; NITROUS-OXIDE EMISSIONS; METHANE PRODUCTION; FLOODED RICE; PLOW LAYER; SOIL; MATTER; DYNAMICS; STRAW; FIELD; EVAPOTRANSPIRATION;
D O I
10.1007/s11104-015-2751-7
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Although paddy soils are generally characterized by relatively high dissolved organic carbon (DOC) concentrations and fluxes, little is yet known on how water management influences the cycling of this important organic C pool. This work aims at providing insights into the link between DOC cycling during rice cropping and organic C input to the subsoils and export with surface waters, as well as methane (CH4) emissions in a temperate paddy soil as a function of different water management practices. DOC quantity, quality and fluxes, as well as CH4 emissions were evaluated at field-scale over two cropping seasons for three water management systems including continuous flooding, dry seeding with delayed flooding, and intermittent irrigation. DOC cycling in the different water management systems were strongly linked to the reducing soil conditions resulting from field flooding. In contrast to dry seeding or intermittent irrigation, adoption of continuous flooding not only favoured the accumulation of DOC in the topsoil (> 10-20 mg C l(-1)), but also enhanced C inputs to the subsoil (33-51 g C m(-2)), and exports with surface waters (18-44 g C m(-2)). Moreover, changes in DOC quality in paddy soils were linked to a positive feedback on the abiotic release of soil-derived DOC, and substrate availability for CH4 production. Water management practices in rice paddies strongly affect the temporal trends in DOC quantity and quality over the cropping season, with important implications on organic C fluxes.
引用
收藏
页码:273 / 290
页数:18
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[1]   Influence of Irrigated Paddy Fields on the Fluorescence Properties of Fluvial Dissolved Organic Matter [J].
Abe, Youichiro ;
Maie, Nagamitsu ;
Shima, Eikichi .
JOURNAL OF ENVIRONMENTAL QUALITY, 2011, 40 (04) :1266-1272
[2]  
[Anonymous], 2010, KEYS SOIL TAX
[3]   Characterization of dissolved organic matter derived from rice straw at different stages of decay [J].
Chen, Hua-Lin ;
Zhou, Jiang-Min ;
Xiao, Bao-Hua .
JOURNAL OF SOILS AND SEDIMENTS, 2010, 10 (05) :915-922
[4]  
Chiaradia EA, 2014, GEOPH RES ABSTR, V16
[5]   Monitoring water fluxes in rice plots under three different cultivation methodsle [J].
Chiaradia, Enrico Antonio ;
Ferrari, Daniele ;
Bischetti, Gian Battista ;
Facchi, Arianna ;
Gharsallah, Olfa ;
Romani, Marco ;
CandoIfi, Claudio .
JOURNAL OF AGRICULTURAL ENGINEERING, 2013, 44 :803-807
[6]   An integrated, multisensor system for the continuous monitoring of water dynamics in rice fields under different irrigation regimes [J].
Chiaradia, Enrico Antonio ;
Facchi, Arianna ;
Masseroni, Daniele ;
Ferrari, Daniele ;
Bischetti, Gian Battista ;
Gharsallah, Olfa ;
Cesari de Maria, Sandra ;
Rienzner, Michele ;
Naldi, Ezio ;
Romani, Marco ;
Gandolfi, Claudio .
ENVIRONMENTAL MONITORING AND ASSESSMENT, 2015, 187 (09)
[7]   Control of microbial methane production in wetland rice fields [J].
Conrad, R .
NUTRIENT CYCLING IN AGROECOSYSTEMS, 2002, 64 (1-2) :59-69
[8]   Methane emission from irrigated and intensively managed rice fields in Central Luzon (Philippines) [J].
Corton, TM ;
Bajita, JB ;
Grospe, FS ;
Pamplona, RR ;
Assis, CA ;
Wassmann, R ;
Lantin, RS ;
Buendia, LV .
NUTRIENT CYCLING IN AGROECOSYSTEMS, 2000, 58 (1-3) :37-53
[9]   Decomposition of rice straw and microbial carbon use efficiency under different soil temperatures and moistures [J].
Devêvre, OC ;
Horwáth, WR .
SOIL BIOLOGY & BIOCHEMISTRY, 2000, 32 (11-12) :1773-1785
[10]   Biodegradation of ferrihydrite-associated organic matter [J].
Eusterhues, Karin ;
Neidhardt, Julia ;
Haedrich, Anke ;
Kuesel, Kirsten ;
Totsche, Kai Uwe .
BIOGEOCHEMISTRY, 2014, 119 (1-3) :45-50