Nitrate removal and potential soil N2O emissions in eutrophic salt marshes with and without Phragmites australis
作者： Jose Alvarez-Rogel , Maria del Carmen Tercero , María Isabel Arce , María José Delgado , Héctor Miguel Conesa
DOI: 10.1016/J.GEODERMA.2016.07.011
关键词: Nitrogen cycle 、 Soil horizon 、 Eutrophication 、 Environmental chemistry 、 Denitrification 、 Environmental science 、 Hydrology 、 Nutrient 、 Phragmites 、 Soil salinity 、 Wetland
摘要: Abstract Wetlands are highly effective systems mitigating the negative effects of N excess, but at same time they contribute to global warming through greenhouse gas emissions. The present study aimed ascertain role Phragmites australis in transformations eutrophic semiarid salt marshes, under low (NO3− = 20 mg L− 1) and high (NO3− = 200 mg L− 1) nutrient level alternating flooding-drying phases. Methacrylate mesocosms were filled with a saline soil, without presence stands, subjected conditions. For 44 weeks soil Eh was regularly monitored two depths N-NO3− N-NH4+ concentration pore water drainage potential N-N2O emissions atmosphere measured. In surface layers, more than 80% removed regardless plants, season year. Denitrification seemed be main responsible this. subsurface layers decreased an average ~ 83% ~ 32% plants during warmer period (soil temp. ~ 15 ~ 30 °C), effectiveness reduced
sci-hub.se 参考文章(73)
H.J. Di, K.C. Cameron, Nitrate leaching in temperate agroecosystems: sources, factors and mitigating strategies Nutrient Cycling in Agroecosystems. ,vol. 64, pp. 237- 256 ,(2002) , 10.1023/A:1021471531188
Xose L. Otero, Felipe Macias, Spatial variation in pyritization of trace metals in salt-marsh soils Biogeochemistry. ,vol. 62, pp. 59- 86 ,(2003) , 10.1023/A:1021115211165
Rebecca J. Bernard, Behzad Mortazavi, Alice A. Kleinhuizen, Dissimilatory nitrate reduction to ammonium (DNRA) seasonally dominates NO 3 − reduction pathways in an anthropogenically impacted sub-tropical coastal lagoon Biogeochemistry. ,vol. 125, pp. 47- 64 ,(2015) , 10.1007/S10533-015-0111-6
M. C. Tercero, J. Álvarez-Rogel, H. M. Conesa, M. A. Ferrer, A. A. Calderón, A. López-Orenes, M. N. González-Alcaraz, Response of biogeochemical processes of the water-soil-plant system to experimental flooding-drying conditions in a eutrophic wetland: the role of Phragmites australis Plant and Soil. ,vol. 396, pp. 109- 125 ,(2015) , 10.1007/S11104-015-2589-Z
Lindsay D. Brin, Anne E. Giblin, Jeremy J. Rich, Effects of experimental warming and carbon addition on nitrate reduction and respiration in coastal sediments Biogeochemistry. ,vol. 125, pp. 81- 95 ,(2015) , 10.1007/S10533-015-0113-4
W. Armstrong, Aeration in Higher Plants Advances in Botanical Research. ,vol. 7, pp. 225- 332 ,(1980) , 10.1016/S0065-2296(08)60089-0
M. Zaman, M.L. Nguyen, M. imek, S. Nawaz, M.J. Khan, M.N. Babar, S. Zam, Emissions of Nitrous Oxide (N2O) and Di-Nitrogen (N2) from the Agricultural Landscapes, Sources, Sinks, and Factors Affecting N2O and N2 Ratios InTech. ,(2012) , 10.5772/32781
Thomas F Stocker, Dahe Qin, G-K Plattner, Melinda MB Tignor, Simon K Allen, Judith Boschung, Alexander Nauels, Yu Xia, Vincent Bex, Pauline M Midgley, Climate change 2007 : the physical science basis : contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change Published in <b>2007</b> in Cambridge by Cambridge university press. ,(2007) , 10.1017/CBO9781107415324
YK Ip, SF Chew, DJ Randall, None, Ammonia toxicity, tolerance, and excretion Fish Physiology. ,vol. 20, pp. 109- 148 ,(2001) , 10.1016/S1546-5098(01)20005-3