Methane fluxes from rice fields in China: Spatial and temporal variability and estimates of contributions to the global budget

Technical Report · Tue Sep 15 04:00:00 EDT 1992

DOI:https://doi.org/10.2172/6700076· OSTI ID:6700076

Khalil, M A.K.; Rasmussen, R A; Huntzicker, J J

During the last year we have made considerable progress on determining the emission rate of methane from rice fields in China and the factors that control the emissions. We have completed work on the methane emissions f rom rice fields for a period of four years at Tu Zu near Chengdu in Szchuan province in China. The available data is being entered into the computer. Flux calculations will be available within 2 months. The fluxes of methane from the rice fields and ambient methane concentrations near the fields are provided including temperature cloud cover, wind speeds, water level, planing density, fertilizer application, pests, ad diseases, growth rate, rice type, soil type, microbial ecology, root exchange exudates, and pH. for the 4-year period. The analysis of the data show that there are a number of internal and external variables that affect the emissions of methane from rice fields.

• Research Organization: Oregon Graduate Inst. of Science and Technology, Beaverton, OR (United States). Global Change Research Center
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG06-85ER60313
• OSTI ID: 6700076
• Report Number(s): DOE/ER/60313-T1; ON: DE93010136
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ALKANES
AMBIENT TEMPERATURE
ASIA
CEREALS
CHINA
CLIMATIC CHANGE
DOCUMENT TYPES
ECOLOGICAL CONCENTRATION
EMISSION
FARMS
FERTILIZERS
GRAMINEAE
GROWTH
HYDROCARBONS
LILIOPSIDA
MAGNOLIOPHYTA
METHANE
ORGANIC COMPOUNDS
PH VALUE
PLANT DISEASES
PLANT GROWTH
PLANTS
PROGRESS REPORT
RICE
SEASONAL VARIATIONS
VARIATIONS
WIND