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中文摘要: 利用闽东南近10多年花生、甘薯的农业气象资料,分析花生、甘薯生产的气象条件。根据回归统计分析得出以下结论:( 1 )夏、秋旱是制约闽东南花生、甘薯产量的主要气象灾害。( 2 )当春花生在6月下旬～7月出现持续无透雨天数>20d ,且耕作层土壤相对湿度达30%以下时,将影响花生子粒膨大,造成减产。( 3)当8～10月持续无透雨>30d ,且耕作层土壤相对湿度达25%以下,将影响甘薯膨大。( 4 )若6～10月该地出现连续大～暴雨过程,由于旱地耕作层蓄水能力低,将造成水肥大量流失,生态恶化。( 5)闽东南旱地
中文关键词: 甘薯，花生，土壤水分，干旱，作物需水量
Abstract:A study of the relationship between the production of peanut and sweet potato and meteorological condition is made. According to statistical analysis, conclusions are as follows: (1) The drought in summer or Autumn is a major natural disaster for paddy crops. (2) When the number of days with drought (the late part of June to July) is greater than 20d, the soil moisture is less than 30%, the production of peanut was poor.(3) When the number of days with drought is greater than 30d, from August to October, the moisture is less than 25%, the crops suffered from drought.(4) Heavy rain existed from June to October, the run off is quite large due to low soil moisture storage capacity of the sandy loam, the ecology would be poor.(5) Because the water storage capacity in soil layer is low, it would be changed the irrigational pattern from field irrigation into spray irrigation.
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基金项目:
| 作者 | 单位 |
| 郑海青 | 福建省气象科学研究所，福州 350001 |
| Author Name | Affiliation |
引用文本：
郑海青,2003.闽东南花生、甘薯气象条件分析[J].气象,29(3):53-57.
,2003.Analysis of Meteorological Conditions for Peanut andSweet Potato Growing in Southeast Fujian[J].Meteor Mon,29(3):53-57.
郑海青,2003.闽东南花生、甘薯气象条件分析[J].气象,29(3):53-57.
,2003.Analysis of Meteorological Conditions for Peanut andSweet Potato Growing in Southeast Fujian[J].Meteor Mon,29(3):53-57.