Impact of chilling injury and global warming on rice yield in Heilongjiang Province

Auteur(s) et Affiliation(s)

LIU, X.

Academy of Disaster Reduction and Emergency Management, Normal University, Beijing, Chine

ZHANG, Z.

Academy of Disaster Reduction and Emergency Management, Normal University, Beijing, Chine

SHUAI, J.

Academy of Disaster Reduction and Emergency Management, Normal University, Beijing, Chine

WANG, P.

Academy of Disaster Reduction and Emergency Management, Normal University, Beijing, Chine

SHI, W.

Inst. of Geographic Sciences and Natural Resources Research, Beijing, Chine

TAO, F.

Inst. of Geographic Sciences and Natural Resources Research, Beijing, Chine

CHEN, Y.

Academy of Disaster Reduction and Emergency Management, Normal University, Beijing, Chine

Description :
This study is focused on indexes for the rice chilling injury in Heilongjiang Province during 1960–2009. Firstly, the AA. 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. Finally, they 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.

Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2013, vol. 23, n°. 1, p. 85-97, nombre de pages : 13, Références bibliographiques : 31 ref.

Date :
2013

Editeur :
Pays édition : Chine

Langue :
Anglais