Abstract
Estimation of release rates of CH4, N2O, and other trace gases from rice agriculture in China requires that details of microbiology, rice field benthic fauna, fertilizer use, and how farmers farm be understood. The potential importance of natural fertilizer can be estimated, based on published biogas generator efficiency in rural China, with the result that CH4 production from the fermentation of animal and human wastes prior to use as fertilizer may be comparable to that expected to be released from flooded rice fields. A review of agricultural practices in Anhui and Fujian Provinces indicates that marked seasonal and geographic variations in CH4 and other trace gas releases to the atmosphere from Chinese agricultural areas are expected.
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Winchester, J.W., Fan, SM. & Li, SM. Methane and nitrogen gases from rice fields of China — possible effects of microbiology, benthic fauna, fertilizer, and agricultural practice. Water Air Soil Pollut 37, 149–155 (1988). https://doi.org/10.1007/BF00226487
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DOI: https://doi.org/10.1007/BF00226487