Effect of rice straw incorporation on methane emission and rice yields from rice cropping system by DNDC-Rice model

被引:2
|
作者
Smakgahn, Kruamas [1 ]
Fumoto, Tamon [2 ]
Yagi, Kazuyuki [2 ]
机构
[1] Kasetsart Univ, Fac Liberal Arts & Sci, Kamphaeng Saen Campus, Kamphaeng Saen Dist 73140, Nakhon Pathom, Thailand
[2] Natl Inst Agroenvironm Sci, 3-1-3 Kannondai, Tsukuba, Ibaraki 3058604, Japan
关键词
DNDC-Rice model; global warming; methane emission; mitigation option; rice cropping system; GREENHOUSE-GAS EMISSIONS; NITROUS-OXIDE EMISSIONS; PADDY FIELDS; SOIL REDOX; CHINA;
D O I
10.1504/IJGW.2018.094310
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This study applied the DNDC-Rice model and simulated against field observation in Thailand. Simulated CH4 emission data shown acceptable results compared to field observation recorded. Rice straw incorporation into field plays important role on CH4 emission by continuous increase soil organic carbon as well as soil iron contents, consequently to low soil Eh which is suitable for CH4 production. Higher amount of rice straw applied induces higher CH4 emission vice versa. Therefore, reduction of rice straw amount incorporation into soil is possible practical mitigation options for CH4 production.
引用
收藏
页码:54 / 63
页数:10
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