CR 40:37-48 (2009)  -  DOI: https://doi.org/10.3354/cr00823

Spatio-temporal changes in annual accumulated temperature in China and the effects on cropping systems, 1980s to 2000

Jinwei Dong1,2, Jiyuan Liu1,*, Fulu Tao1, Xinliang Xu1, Junbang Wang1

1Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
2Graduate University of Chinese Academy of Sciences, Beijing 100039, China
*Corresponding author. Email:

ABSTRACT: Change in thermal conditions can substantially affect crop growth, cropping systems, agricultural production and land use. In the present study, we used annual accumulated temperatures >10°C (AAT10) as an indicator to investigate the spatio-temporal changes in thermal conditions across China from the late 1980s to 2000, with a spatial resolution of 1 × 1 km. We also investigated the effects of the spatio-temporal changes on cultivated land use and cropping systems. We found that AAT10 has increased on a national scale since the late 1980s. Particularly, 3.16 × 105 km2 of land moved from the spring wheat zone (AAT10: 1600 to 3400°C) to the winter wheat zone (AAT10: 3400 to 4500°C). Changes in thermal conditions had large influences on cultivated land area and cropping systems. The areas of cultivated land have increased in regions with increasing AAT10, and the cropping rotation index has increased since the late 1980s. Single cropping was replaced by 3 crops in 2 years in many regions, and areas of winter wheat cultivation were shifted northward in some areas, such as in the eastern Inner Mongolia Autonomous Region and in western Liaoning and Jilin Provinces.


KEY WORDS: Agriculture · Accumulated temperature · Climate change · Cropping system · China · Cultivated land · Land-use change


Full text in pdf format 
Cite this article as: Dong J, Liu J, Tao F, Xu X, Wang J (2009) Spatio-temporal changes in annual accumulated temperature in China and the effects on cropping systems, 1980s to 2000. Clim Res 40:37-48. https://doi.org/10.3354/cr00823

Export citation
Mail this link - Contents Mailing Lists - RSS
- -