| Variation of heat condition of maize in the middle arid region of Ningxia |
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| DOI：10.7606/j.issn.1000-7601.2016.06.39 |
| Key Words: maize growth period temperature suitability degrees active accumulated temperature temporal and spatial variation the middle arid region of Ningxia |
| Author Name | Affiliation | | CHEN Lu | Jiangsu Key Laboratory of Agricultural Meteorology,Nanjing, Jiangsu 210044, China
Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, China | | LIU Jing | Ningxia Key Laboratory for Meteorological Disaster prevention and Reduction, Yinchuan Ningxia 750002, China | | WANG Lian-xi | Jiangsu Key Laboratory of Agricultural Meteorology,Nanjing, Jiangsu 210044, China
Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, China | | LI Qi | Jiangsu Key Laboratory of Agricultural Meteorology,Nanjing, Jiangsu 210044, China
Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, China | | XU Chen-chun | Jiangsu Key Laboratory of Agricultural Meteorology,Nanjing, Jiangsu 210044, China
Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, China |
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| Abstract: |
| Maize growth period data and daily climate data of Yanchi, Tongxin and Haiyuan counties in the middle arid region of Ningxia were used to build the maize temperature suitability degrees. And spatio-temporal analysis of these degrees and active accumulated temperature ≥10℃.The result indicated that: the maize temperature suitability degrees and active accumulated temperature ≥10℃ were in ascent, and the suitability degrees in these three counties from high to low listed as Tongxin county, Yanchi county and Haiyuan county, and the suitability degrees are 0.966, 0.911 and 0.726 respectively. The temperature suitability degrees in sowing to emergence, emergence to jointing, jointing to tasseling and silking to maturity periods represented an increase, while the degrees in jointing to tasseling period increased the fast, and the degrees are 0.03·10a-1. Active accumulated temperature ≥10℃ in sowing to emergence and emergence to jointing periods represented an increase. |
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