黑龙江省冷害与全球变暖对水稻产量的影响(英文)

编号 zgly0001585172

文献类型 期刊论文

文献题名 黑龙江省冷害与全球变暖对水稻产量的影响(英文)

作者 刘晓菲  张朝  帅嘉冰  王品  史文娇  陶福禄  陈一 

作者单位 AcademyofDisasterReductionandEmergencyManagement/StateKeyLaboratoryofEarthSurfaceProc-essandResourceEcology  BeijingNormalUniversity  InstituteofGeographicSciencesandNaturalResourcesResearch  CAS 

母体文献 Journal of Geographical Sciences 

年卷期 2013年01期

年份 2013 

分类号 S511  S426 

关键词 riceproduction  chillinginjury  HeilongjiangProvince 

文摘内容 This study is focused on indexes for the rice chilling injury in Heilongjiang Province during 1960-2009. Firstly, we compared a new derived climate data weighted by rice planting density with the traditional method, and found that the new one is more reasonable to assess the impact of climate change on crop yields. Considering the frequency and intensity of rice chilling in the province, secondly, chilling indexes defined by meteorological, national and international levels were assessed. The result showed that the meteorological standards were suitable for the delayed-type injury, while the international one, so-called sum of Grow-ing Degree Day below threshold (GDDn-), characterized best the sterile-type chilling injury for rice. The explanation ability of the rice yield time series model including both injury types as two independent variables reached approximately 92% (p < 0.05). Finally, we concluded that the contribution rates of human and weather factors to rice yields are about 87.2% and 12.8% respectively, and as light increasing trend for sterile-type chilling injury was found during heading to flowing period in recent years, indicating a high chilling risk for rice planting in Heilongjiang Province in the future global warming.