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| Content Provider | Springer Nature Link |
|---|---|
| Author | Xu, Yanhong Guo, Jianping Zhao, Junfang Mu, Jia |
| Copyright Year | 2014 |
| Abstract | Based on gridded meteorological data for the period 1981–2100 from the RegCM3 regional model, the changing trends of climatic resources in Northeast China are analyzed, and the distributions of maize varieties are accordingly adjusted. In order to explore the effects of different adaptation countermeasures on climatic productivity and meteorological suitability in the future, maize cultivars with resistance to high temperatures and/or drought are selected. The results show that, in the future, there is likely to be a significant increase in thermal resources, and potential atmospheric evaporation will increase correspondingly. Meanwhile, radiation is predicted to increase significantly during 2041–2070 in the growing season. However, changes in precipitation are unlikely to be sufficient enough to offset the intensification in atmospheric evaporation caused by the temperature increase. Water resources and high temperatures are found to be the two major factors constraining grain yield. The results also show that the warming climate will be favorable for maize production where thermal resources are already limited, such as in central and northern Heilongjiang Province and eastern Jilin Province; while in areas that are already relatively warm, such as Liaoning Province, climatic productivity will be reduced. The climatic productivity and the meteorological suitability of maize are found to improve when the planting of resistant varieties is modeled. The utilization of agricultural climatic resources through the adaptation countermeasures of maize varieties is to increase obviously with time. Specifically, maize with drought-resistant properties will have a marked influence on meteorological suitability during 2011–2070, with suitable areas expanding. During 2071–2100, those maize varieties with their upper limit of optimum temperature and maximum temperature increased by 2°, or water requirement reduced to 94%, or upper limit of optimum temperature and maximum temperature increased by 1°C and water requirement reduced to 98%, all exhibit significant differences in climatic potential productivity, compared to the present-day varieties. The meteorological suitability of maize is predicted to increase in some parts of Heilongjiang Provine, with the eastern boundary of the “unavailable” area shifting westward. |
| Starting Page | 469 |
| Ending Page | 480 |
| Page Count | 12 |
| File Format | |
| ISSN | 20956037 |
| Journal | Journal of Meteorological Research |
| Volume Number | 28 |
| Issue Number | 3 |
| e-ISSN | 21980934 |
| Language | English |
| Publisher | The Chinese Meteorological Society |
| Publisher Date | 2014-07-10 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | climate change Northeast China variety adaptation countermeasure Agro-Ecological Zone (AEZ) model climatic productivity Atmospheric Sciences Meteorology Geophysics and Environmental Physics Atmospheric Protection/Air Quality Control/Air Pollution |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ocean Engineering Atmospheric Science |
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