Estimate of CH4 Emissions from Year-Round Flooded Rice Fields During Rice Growing Season in China

CAI Zu-Cong; KANG Guo-Ding; H. TSURUTA; A. MOSIER

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Estimate of CH4 Emissions from Year-Round Flooded Rice Fields During Rice Growing Season in China

机译：中国水稻生育季全年淹水稻田CH4排放估算

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A special kind of rice field exists in China that is flooded year-round. These rice fields have substantially large CH4emissions during the rice-growing season and emit CH4 continuously in the non-rice growing season. CH4 emission factors were used to estimate the CH4 emissions from year-round flooded rice fields during the rice-growing season in China.The CH4 emissions for the year-round flooded rice fields in China for the rice growing season over a total area of 2.66Mha were estimated to be 2.44 Tg CH4 year-1. The uncertainties of these estimations are discussed as well. However,the emissions during the non-rice growing season could not be estimated because of limited available data. Nevertheless,methane emissions from rice fields that were flooded year-round could be several times higher than those from the rice fields drained in the non-rice-growing season. Thus, the classification of "continuously flooded rice fields" in the IPCC(International Panel on Climate Change) Guidelines for National Greenhouse Gas Inventories is suggested to be revised and divided into "continuously flooded rice fields during the rice growing season" and "year-round flooded rice fields".

机译：中国存在一种特殊的稻田，一年四季都被淹。这些稻田在稻米生长期有大量的CH4排放，在非稻米生长期连续排放CH4。 CH4排放因子用于估算中国水稻生长期全年淹水稻田的CH4排放量。中国水稻全年生长期稻田CH4排放量的总面积为2.66第一年的Mha估计为2.44 Tg CH4。还讨论了这些估计的不确定性。然而，由于可获得的数据有限，无法估算非稻米生长季节的排放量。然而，全年被淹的稻田甲烷排放量可能是非稻米生长季节排放的稻田甲烷排放量的几倍。因此，建议修订IPCC（国际气候变化专门委员会）国家温室气体清单指南中的“连续淹没稻田”的分类，并将其分为“水稻生长期的连续淹没稻田”和“年份”。一轮被水淹没的稻田”。

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《土壤圈（英文版）》 |2005年第1期|66-71|共6页
作者
CAI Zu-Cong; KANG Guo-Ding; H. TSURUTA; A. MOSIER;
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作者单位

State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;

Department of Demography and Economics, Nanjing College for Population Program Management, Nanjing 210093, China;

Tokyo University of Agriculture and Technology, Tokyo, Japan;

USDA/ARS, Ft. Collins, CO 80522, USA;

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收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
原文格式 PDF
正文语种 chi
中图分类农业基础科学;
关键词
IPCC methodology; methane emission; rice fields; year-round flooded;

机译：IPCC方法论;甲烷排放;水稻田;全年淹没;

Estimate of CH4 Emissions from Year-Round Flooded Rice Fields During Rice Growing Season in China

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