| A study on eco-climate suitability of broomcorn millet(Panicum Miliaceum L.) in Gansu |
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| DOI：10.7606/j.issn.1000-7601.2010.01.40 |
| Key Words: millet eco-climate suitability yield |
| Author Name | Affiliation | | PU Jinyong | Tianshui Agrometeorological Experiment Station, Tianshui, Gansu 741020, China | | YAO Xiaoying | Tianshui Meteorological Bureau, Tianshui, Gansu 741000, China | | XIN Changye | Tianshui Agrometeorological Experiment Station, Tianshui, Gansu 741020, China | | YUAN Yaping | Tianshui Agrometeorological Experiment Station, Tianshui, Gansu 741020, China |
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| Abstract: |
| Broomcorn millet is main minor crops in Gansu. To investigate the eco-climate suitability of millet, we analyzed the influence of climate factors on the yield of broomcorn millet with the method of integral regression in Xiefeng, Maiji, Anding and Liangzhou districts from 1985～2008. The result shows that water and heat have different function on the yield of broomcorn millet in different regions at different periods in which the highest value of ten-day average temperature on the yield of broomcorn millet in Anding, Liangzhou, Xifeng and Maiji are 10.5 kg/(hm2·℃), 9.0 kg/(hm2·℃), 8.0 kg/(hm2·℃) and 5.6 kg/(hm2·℃) respectively in heading to flowering periods and the highest value of ten-day precipitation on yield of broomcorn millet are 8.0 kg/(hm2·mm), 3.0 kg/(hm2·mm), 5.2 kg/(hm2·mm) and 5.2 kg/(hm2·mm) respectively in jointing growth period. It also shows that the sunshine can satisfy the growing of broomcorn millet in Gansu. The most eco-climate suitability area is in the plateau of Eastern Gansu, the basin of the Weihe River and the irrigation area below 1 600 m above the sea level and Dunhuang Basin in Hexi corridor and the most potential eco-climate suitability area is Middle Gansu and Northeast Gansu. |
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