Authors
Abstract
We assessed decadal changes in CH4 fluxes from rice fields in China during 1961-2007 using an empirical model that was modified to include the effects of changing patterns of fertilizer use and water management. We reviewed studies of the effects of organic amendments and found that an application rate of 6 tons/ha increased emissions by 115 ± 42% based on experimental manipulations from 10 studies. We also reviewed studies of mid-season drainage in rice fields and found that drainage reduced CH4 emissions by 35 ± 12% based on experiments reported from nine studies. Our simulations showed that the CH4 flux was about 8 Tg/year in 1961, gradually increased to a maximum of approximately 17 Tg/year in 1982, and then gradually declined to 7.5 Tg/year in 2007. The reduction in the total rice emissions after 1982 was caused primarily by changing agricultural practices, including mid-season drainage, increases in inorganic fertilizer use, improved crop yields, and decreases in the area used for rice production. © 2010 Taylor & Francis.
Keywords No keywords specified (fix it)
Categories No categories specified
(categorize this paper)
Options
Edit this record
Mark as duplicate
Export citation
Find it on Scholar
Request removal from index
Revision history

Download options

PhilArchive copy


Upload a copy of this paper     Check publisher's policy     Papers currently archived: 58,834
External links

Setup an account with your affiliations in order to access resources via your University's proxy server
Configure custom proxy (use this if your affiliation does not provide a proxy)
Through your library

References found in this work BETA

No references found.

Add more references

Citations of this work BETA

No citations found.

Add more citations

Similar books and articles

Ethical Emissions Trading and the Law.Kirk W. Junker - 2006 - University of Baltimore Journal of Environmental Law 13 (149).

Analytics

Added to PP index
2017-03-13

Total views
1 ( #1,471,392 of 2,426,000 )

Recent downloads (6 months)
1 ( #544,761 of 2,426,000 )

How can I increase my downloads?

Downloads

Sorry, there are not enough data points to plot this chart.

My notes