文献类型：期刊文献

中文题名：Water regime-nitrogen fertilizer incorporation interaction：Field study on methane and nitrous oxide emissions from a rice agroecosystem in Harbin, China

英文题名：Water regime-nitrogen fertilizer incorporation interaction:Field study on methane and nitrous oxide emissions from a rice agroecosystem in Harbin, China

作者：Wenjun Dong[1,2,3,4] Jia Guo[5,6] Lijun Xu[7] Zhifeng Song[8] Jun Zhang[9] Ao Tang[2] Xijuan Zhang[2,3] Chunxu Leng[2] Youhong Liu[2] Lianmin Wang[2] Lizhi Wang[2] Yang Yu[2] Zhongliang Yang[10] Yilei Yu[5,6] Ying Meng[2] Yongcai Lai[2]

第一作者：Wenjun Dong

机构：[1]Heilongjiang Academy of Agricultural Sciences Postdoctoral Programme, Harbin 150086, China;[2]Cultivation and Farming Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China;[3]Northern Japonica Rice Molecular Breeding Joint Research Center, Chinese Academy of Sciences, Harbin 250086, China;[4]Scientific Observing and Experimental Station of Crop Cultivation in Northeast China, Ministry of Agriculture, Harbin, 150086, China;[5]Institute of Wetland Research, Chinese Academy of Forestry, Beijing 100091, China;[6]Beijing Key Laboratory of Wetland Services and Restoration, Beijing 100091, China;[7]Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China;[8]Jilin Academy of Agricultural Sciences, Changchun,Jilin 130124, China;[9]Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;[10]Rice Institute of Wuchang, Heilongjiang Academy of Agricultural Sciences, Wuchang 150229, China

年份：2018

卷号：0

期号：2

起止页码：289-297

中文期刊名：环境科学学报：英文版

收录：CSTPCD;;Scopus;CSCD:【CSCD2017_2018】；PubMed;

基金：supported by the China Postdoctoral Science Foundation(No.2012M511005);National Key Technology Support Program of China(No.2015BAC02B02);the Agro-scientific Research Programs in Public Interest(No.201303102);National Natural Science Foundation of China(No.31501263);the Postdoctoral Financial Assistance of Heilongjiang Province(No.LBH-Z12232);the Scientific Research Initiation Fund for Introduction of Ph.D Talent of Heilongjiang Academy of Agricultural Sciences(No.201507-14);the State Key Program of China(No.2016YFD0300900);the Major Project of Research and Development of Applied Technology of Heilongjiang Province(No.GA15B101);the Provincial Matching Funds to the National Foundation of Applied Technology Research and Development Program in Heilongjiang Province(No.GX16B002)

语种：英文

中文关键词：氮化肥;哈尔滨;水政;相互作用;学习;大米;甲烷;中国

外文关键词：Methane（CH4）;Nitrous oxide（N2O）;Rice ecosystem;Cold region;Global warming potential

分类号：X52;TV21

摘要：Water regime and nitrogen(N) fertilizer are two important factors impacting greenhouse gases(GHG) emission from paddy field, whereas their effects have not been well studied in cold region. In this study, we conducted a two-year field experiment to study the impacts of water regime and N fertilizer on rice yields and GHG emissions in Harbin, China, a cold region located in high latitudes. Our results showed that intermittent irrigation significantly decreased methane(CH_4) emission compared with continuous flooding, however,the decrement was far lower than the global average level. The N_2O emissions were very small when flooded but peaked at the beginning of the disappearance of floodwater. The N fertilizer treatments increased CH_4 emissions at low level(75 kg N/ha). But both CH_4 and N_2O emissions were uninfluenced at the levels of 150 kg N/ha and 225 kg N/ha. Rice yields increased under intermittent irrigation and were highest at the level of 150 kg N/ha. From our results, we recommended that the intermittent irrigation and 150 kg N/ha as the ideal water regime-nitrogen fertilizer incorporation for this area to achieve low GHG emissions without impacting rice yields.
Water regime and nitrogen（N） fertilizer are two important factors impacting greenhouse gases（GHG） emission from paddy field, whereas their effects have not been well studied in cold region. In this study, we conducted a two-year field experiment to study the impacts of water regime and N fertilizer on rice yields and GHG emissions in Harbin, China, a cold region located in high latitudes. Our results showed that intermittent irrigation significantly decreased methane（CH4） emission compared with continuous flooding, however,the decrement was far lower than the global average level. The N2O emissions were very small when flooded but peaked at the beginning of the disappearance of floodwater. The N fertilizer treatments increased CH4 emissions at low level（75 kg N/ha）. But both CH4 and N2O emissions were uninfluenced at the levels of 150 kg N/ha and 225 kg N/ha. Rice yields increased under intermittent irrigation and were highest at the level of 150 kg N/ha. From our results, we recommended that the intermittent irrigation and 150 kg N/ha as the ideal water regime-nitrogen fertilizer incorporation for this area to achieve low GHG emissions without impacting rice yields.