Emissions of methyl halides and methane from rice paddies

K R  Redeker; N Y  Wang; J C  Low; A  McMillan; S C  Tyler; R J  Cicerone

Emissions of methyl halides and methane from rice paddies

K R Redeker, N Y Wang, J C Low, A McMillan, S C Tyler, R J Cicerone

Biology

Research output: Contribution to journal › Article › peer-review

Abstract

Methyl halide gases are important sources of atmospheric inorganic halogen compounds, which in turn are central reactants in many stratospheric and tropospheric chemical processes. By observing emissions of methyl chloride, methyl bromide, and methyl iodide from flooded California rice fields, we estimate the impact of rice agriculture on the atmospheric budgets of these gases. Factors influencing methyl halide emissions are stage of rice growth, soil organic content, halide concentrations, and field-water management. Extrapolating our data implies that about 1 percent of atmospheric methyl bromide and 5 percent of methyl iodide arise from rice fields worldwide. Unplanted flooded fields emit as much methyl chloride as planted, flooded rice fields.

Original language	English
Pages (from-to)	966-969
Number of pages	4
Journal	Science
Volume	290
Issue number	5493
Publication status	Published - 3 Nov 2000

Cite this

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title = "Emissions of methyl halides and methane from rice paddies",

abstract = "Methyl halide gases are important sources of atmospheric inorganic halogen compounds, which in turn are central reactants in many stratospheric and tropospheric chemical processes. By observing emissions of methyl chloride, methyl bromide, and methyl iodide from flooded California rice fields, we estimate the impact of rice agriculture on the atmospheric budgets of these gases. Factors influencing methyl halide emissions are stage of rice growth, soil organic content, halide concentrations, and field-water management. Extrapolating our data implies that about 1 percent of atmospheric methyl bromide and 5 percent of methyl iodide arise from rice fields worldwide. Unplanted flooded fields emit as much methyl chloride as planted, flooded rice fields.",

author = "Redeker, {K R} and Wang, {N Y} and Low, {J C} and A McMillan and Tyler, {S C} and Cicerone, {R J}",

year = "2000",

month = nov,

day = "3",

language = "English",

volume = "290",

pages = "966--969",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "5493",

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TY - JOUR

T1 - Emissions of methyl halides and methane from rice paddies

AU - Redeker, K R

AU - Wang, N Y

AU - Low, J C

AU - McMillan, A

AU - Tyler, S C

AU - Cicerone, R J

PY - 2000/11/3

Y1 - 2000/11/3

N2 - Methyl halide gases are important sources of atmospheric inorganic halogen compounds, which in turn are central reactants in many stratospheric and tropospheric chemical processes. By observing emissions of methyl chloride, methyl bromide, and methyl iodide from flooded California rice fields, we estimate the impact of rice agriculture on the atmospheric budgets of these gases. Factors influencing methyl halide emissions are stage of rice growth, soil organic content, halide concentrations, and field-water management. Extrapolating our data implies that about 1 percent of atmospheric methyl bromide and 5 percent of methyl iodide arise from rice fields worldwide. Unplanted flooded fields emit as much methyl chloride as planted, flooded rice fields.

AB - Methyl halide gases are important sources of atmospheric inorganic halogen compounds, which in turn are central reactants in many stratospheric and tropospheric chemical processes. By observing emissions of methyl chloride, methyl bromide, and methyl iodide from flooded California rice fields, we estimate the impact of rice agriculture on the atmospheric budgets of these gases. Factors influencing methyl halide emissions are stage of rice growth, soil organic content, halide concentrations, and field-water management. Extrapolating our data implies that about 1 percent of atmospheric methyl bromide and 5 percent of methyl iodide arise from rice fields worldwide. Unplanted flooded fields emit as much methyl chloride as planted, flooded rice fields.

M3 - Article

SN - 0036-8075

VL - 290

SP - 966

EP - 969

JO - Science

JF - Science

IS - 5493

ER -