N2O and N2 emissions from pasture and wetland soils with and without amendments of nitrate, lime and zeolite under laboratory condition
M. Zaman A D , M. L. Nguyen B and S. Saggar CA Summit-Quinphos (NZ) Ltd, Private Bag 3029, Waikato mail Centre 3240, Hamilton, New Zealand.
B Soil and Water Management & Crop Nutrition, Joint FAO/IAEA Division of Nuclear Techniques in Food & Agriculture, PO Box 100, A-1400 Vienna, Austria.
C Landcare Research, Private Bag 11052, Palmerston North, New Zealand.
D Corresponding author. Email: zamanm_99@yahoo.com
Australian Journal of Soil Research 46(7) 526-534 https://doi.org/10.1071/SR07218
Submitted: 21 November 2007 Accepted: 10 April 2008 Published: 8 October 2008
Abstract
Pasture and wetland soils are regarded as the major source of nitrous oxide (N2O) and dinitrogen (N2) emissions as they receive regular inputs of N from various sources. To understand the factors affecting N2O and N2 emissions and their ratio as influenced by soil amendments (zeolite or lime), we conducted laboratory experiments using 10-L plastic containers at 25°C for 28 days. Soil samples (0–0.1 m soil depth) collected from pasture and adjacent wetland sites were treated with nitrate-N (NO3–) at 200 kg N/ha with and without added lime or zeolite. Nitrous oxide and N2 emissions were measured periodically from soil subsamples collected in 1-L gas jars using acetylene (C2H2) inhibition technique, and soil ammonium (NH4+) and NO3– concentrations were determined to assess the changes in N transformation. Soil NO3–-N disappeared relatively faster in wetland soil than that in pasture soil. In the presence of added NO3–, wetland soils emitted significantly more N2O and N2 than pasture soils, while the reverse trend was observed in the absence of NO3–. Total N2O emitted as percentage of the applied N was 25% for wetland and 5.7% for pasture soils. Total N2 emissions expressed as a percentage of the applied N from wetland and pasture soils were 5–9% and 0.29–0.74%, respectively. Higher N2O and N2 emissions and lower N2O : N2 ratios from wetland soils than pasture soils were probably due to the higher water content and greater availability of soluble C in wetland. Zeolite applied to wetland soils reduced N2O emissions but had little effect on N2O emissions from pasture soils. Liming appeared to exacerbate N2O emissions from fertilised lands and treatment wetlands and shift the balance between N2O and N2, and may be considered as one of the potential management tools to reduce the amount of fertiliser N moving from pasture and wetland into waterways.
Additional keywords: acetylene reduction, lime, mitigation, nitrate, N2O, N2, pasture, wetland, zeolite.
Acknowledgment
We thank Summit Quinphos (NZ) Ltd and NIWA for funding this project. We also thank our NIWA Hamilton staff members Kerry Costley and James Sukius for their technical assistance in the field and laboratory work. We also thank Professor Art Gold, Department of Natural Resources Sciences, Coastal Institute in Kingston, University of Rhode Island, Kingston, RI, for his help in designing the experiment and positive comments in preparing this manuscript.
Arah JRM, Smith KA
(1991) Nitrous oxide production and denitrification in Scottish arable soils. Journal of Soil Science 42, 351–367.
| Crossref | GoogleScholarGoogle Scholar |
Aulakh MS,
Khera TS,
Doran JW, Bronson KF
(2001) Denitrification, N2O and CO2 fluxes in rice-wheat cropping system as affected by crop residues, fertilizer N and legume green manure. Biology and Fertility of Soils 34, 375–389.
| Crossref | GoogleScholarGoogle Scholar |
Barton L,
McLay CDA,
Schipper LA, Smith CT
(1999) Annual denitrification rates in agricultural and forest soils: a review. Australian Journal of Soil Research 37, 1073–1093.
| Crossref | GoogleScholarGoogle Scholar |
Bouwman AF,
Boumas LJM, Batjes NH
(2002) Emissions of N2O and NO from fertilized fields: Summary of available measurement data. Global Biogeochemical Cycles 16, 1–13.
Burns DA, Nguyen ML
(2002) Nitrate movement and removal along a shallow groundwater flow path in a riparian wetland within a sheep-grazed pastoral catchment, Results of a tracer study. New Zealand Journal Marine and Freshwater Research 36, 371–385.
Cavigelli MA, Robertson GP
(2001) Role of denitrifier diversity in rates of nitrous oxide consumption in a terrestrial ecosystem. Soil Biology and Biochemistry 33, 297–310.
| Crossref |
Cho CM,
Burton DL, Chang C
(1997) Denitrification and fluxes of nitrogenous gases from soil under steady oxygen distribution. Canadian Journal of Soil Science 77, 261–269.
Clough TJ,
Sherlock RR, Kelliher FM
(2003) Can liming mitigate N2O fluxes from a urine-amended soil? Australian Journal of Soil Research 41, 439–457.
| Crossref | GoogleScholarGoogle Scholar |
Corre MD,
Pennock DJ,
Van Kissel C, Kirk Elliott D
(1999) Estimation of annual nitrous oxide emissions from a transitional grassland-forest region in Saskatchewan, Canada. Biogeochemistry 44, 29–49.
| Crossref | GoogleScholarGoogle Scholar |
Daum D, Schenk MK
(1998) Influence of nutrient solution pH on N2O and N2 emissions from a soilless culture system. Plant and Soil 203, 279–287.
| Crossref | GoogleScholarGoogle Scholar |
de Klein CAM,
Barton L,
Sherlock RR,
Li Z, Littlejohn RP
(2003) Estimating a nitrous oxide emission factor for animal urine from some New Zealand pastoral soils. Australian Journal of Soil Research 41, 381–399.
| Crossref | GoogleScholarGoogle Scholar |
Di HJ, Cameron KC
(2006) Nitrous oxide emissions from two dairy pasture soils as affected by different rates of fine particle suspension nitrification inhibitor, dicyandiamide. Biology and Fertility of Soils 42, 472–480.
| Crossref | GoogleScholarGoogle Scholar |
Dobbie KE, Smith KA
(2003) Impact of different forms of N fertilizers on N2O emission from intensive grassland. Nutrient Cycling in Agroecosystems 67, 37–46.
| Crossref | GoogleScholarGoogle Scholar |
Fennessy MS, Cronk JK
(1997) The effectiveness and restoration potential of riparian ecotones for the management of no point source pollution, particularly nitrate. Critical Reviews in Environmental Science and Technology 27, 285–317.
Flessa H,
Wild U,
Klemisch M, Pfadenhauer J
(1998) Nitrous oxide and methane fluxes from organic soils under agriculture. European Journal of Soil Science 49, 327–335.
| Crossref | GoogleScholarGoogle Scholar |
Hefting MM,
Bobbink R, de Caluwe H
(2003) Nitrous oxide emission and denitrification in chronically nitrate-loaded riparian buffer zones. Journal of Environmental Quality 32, 1194–1203.
| PubMed |
Hoffmann CC,
Rysgaard S, Berg P
(2000) Denitrification rates predicted by nitrogen-15 labeled nitrate microcosm studies, in-situ measurements, and modelling. Journal of Environmental Quality 29, 2020–2028.
Inubushi K,
Naganuma H, Kitahara S
(1996) Contribution of denitrification and autotrophic and heterotrophic nitrification to nitrous oxide production in Andosols. Biology and Fertility of Soils 23, 292–298.
| Crossref | GoogleScholarGoogle Scholar |
Linn DM, Doran JW
(1984) Effect of water-filled pore space on carbon dioxide and nitrous oxide production in tilled and nontilled soils. Soil Science Society of America Journal 48, 1267–1272.
Luo J, Saggar S
(2008) Nitrous oxide and methane emissions from a dairy farm stand-off pad. Australian Journal of Experimental Agriculture 48, 179–182.
| Crossref | GoogleScholarGoogle Scholar |
Maag M, Vinther FP
(1996) Nitrous oxide emission by nitrification and denitrification in different soil types and at different soil moisture contents and temperature. Applied Soil Ecology 4, 5–14.
| Crossref | GoogleScholarGoogle Scholar |
Matheson FE,
Nguyen ML,
Cooper AB, Burt TP
(2003) Short-term nitrogen transformation rates in riparian wetland soil determined with nitrogen-15. Biology and Fertility of Soils 38, 129–136.
| Crossref | GoogleScholarGoogle Scholar |
Nguyen ML, Tanner CC
(1998) Ammonium removal from wastewaters using natural New Zealand zeolites. New Zealand Journal of Agriculture Research 41, 427–446.
Rutherford JC, Nguyen ML
(2004) Nitrate removal in riparian wetlands, interactions between surface flow and soils. Journal of Environmental Quality 33, 1133–1143.
| PubMed |
Silver WL,
Herman DJ, Firestone MK
(2001) Dissimilatory nitrate reduction to ammonium in upland tropical forest soils. Ecology 82, 2410–2416.
Šimek M, Cooper JE
(2002) The influence of soil pH on denitrification: progress towards the understanding of this interaction over the last 50 years. European Journal of Soil Science 53, 345–354.
| Crossref | GoogleScholarGoogle Scholar |
Smith CJ,
Chalk PM,
Crawford DM, Wood T
(1994) Estimating gross nitrogen mineralization and immobilization rates in anaerobic and aerobic soil suspensions. Soil Science Society of America Journal 58, 1652–1660.
Smith KA,
Ball T,
Conen F,
Dobbie KE, Rey A
(2003) Exchange of greenhouse gases between soil and atmosphere, interactions of soil physical factors and biological processes. European Journal of Soil Science 54, 779–791.
| Crossref | GoogleScholarGoogle Scholar |
Stevens RJ, Laughlin RJ
(1998) Measurements of nitrous oxide and di-nitrogen emissions from agricultural soils. Nutrient Cycling in Agroecosystems 52, 131–139.
| Crossref | GoogleScholarGoogle Scholar |
Tiedje JM,
Simkins S, Groffman PM
(1989) Perspectives on measurement of denitrification in the field including recommended protocols for acetylene based methods. Plant and Soil 115, 261–284.
| Crossref | GoogleScholarGoogle Scholar |
Walker JT,
Geron CD,
Vose JM, Swank WT
(2002) Nitrogen trace gas emissions from a riparian ecosystem in southern Appalachia. Chemosphere 49, 1389–1398.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Weier KL,
Doran JW,
Power JF, Walters DT
(1993) Denitrification and the dinitrogen/nitrous oxide ratio as affected by soil water, available carbon, and nitrate. Soil Science Society of America Journal 57, 66–72.
Weier KL, Gilliam JW
(1986) Effect of acidity on denitrification and nitrous oxide evolution from Atlantic Coastal Plain soils. Soil Science Society of America Journal 50, 1202–1205.
Well RJ,
Augustin J,
Davis SM,
Griffith K, Myrold DD
(2001) Production and transport of denitrification gases in shallow ground water. Nutrient Cycling in Agroecosystems 60, 65–75.
| Crossref | GoogleScholarGoogle Scholar |
Zaman M, Chang SX
(2004) Substrate type, temperature, and moisture content affect gross and net soil N mineralization and nitrification rates in agroforestry systems. Biology and Fertility of Soils 39, 269–279.
| Crossref | GoogleScholarGoogle Scholar |
Zaman M,
Nguyen ML,
Blennerhassett JD, Quin BF
(2008) Reducing NH3, N2O and NO3
−-N losses from a pasture soil with urease or nitrification inhibitors and elemental S-amended nitrogenous fertilizers. Biology and Fertility of Soils 44, 693–705.
| Crossref | GoogleScholarGoogle Scholar |
Zaman M,
Nguyen ML,
Matheson FE,
Blennerhassett JD, Quin BF
(2007) Can soil amendments (zeolite or lime) shift the balance between nitrous oxide and dinitrogen emissions from pasture and wetland soils receiving urine or urea-N? Australian Journal of Soil Research 45, 543–553.
| Crossref | GoogleScholarGoogle Scholar |