| Characteristics of climate change and its influence on growth period of crops in Shiyang River basin |
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| DOI：10.7606/j.issn.1000-7601.2013.05.004 |
| Key Words: climate change crop growth period Shiyang River basin |
| Author Name | Affiliation | | SHENG Lu1,2, LIU Ming-chun2,3, HU Zheng-hua1,2, PAN Ying1,CUI Hai-ling1, CHEN Shu-tao1, LI Qi1 | (1.南京信息工程大学江苏省农业气象重点实验室， 江苏 南京 210044
2.中国气象局干旱气候变化与减灾重点开放实验室, 中国气象局兰州干旱气象研究所, 甘肃 兰州 730020
3.甘肃省武威市气象局, 甘肃 武威 733000) |
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| Abstract: |
| To gain insight into the characteristics of climatic change and its influence on the growth period of crops (spring wheat and corn) in the Shiyang River basin, the meteorological data of five agricultural meteorological stations during 1951—2009 and the growth period observation data of crops in Wuwei City were analyzed using linear contrast analysis, Mann Kendall trend test and mutation test analysis, Arcgis spatial statistical analysis, Morlet wavelet analysis, and SPSS s
tatistical analysis. The results showed that there was an increasing tendency of temperature in different areas of Shiyang River basin in last 60 years, while the monthly, quarterly and annual mean precipitation increased (or decreased) to different extents. The significant change periods of mean temperature and precipitation were 3～5 a, and 1～3 a, respectively. Precipitation was the main
meteorological factor that impacted the length of milky stage of spring wheat, however, there was no significant correlation between temperature (precipitation) and key growth periods of corn. |
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