| 摘要: |
| 依据关中灌区１９个气象站１９６１～１９８９年４～５月平均气温、降水量、≥５ｍｍ降水日数及相对湿度用聚类分析法划分了偏湿区和偏干区。偏湿区主要包括中西部的长安、户县、周至、兴平、眉县、武功、扶风、岐山、凤翔、蓝田等１０县，其农业气候特点为降水多、湿度高、温度较低，是小麦赤霉病的常发区。乾县、礼泉、泾阳、临潼、渭南、华县、宫平、蒲城、大荔等９县为偏干区，其农业气候特点是降水少、湿度低、温度较高，是小麦赤霉病的偶发区。 |
| 关键词: 农业气候，分区，小麦赤霉病，关中灌区 |
| DOI： |
| 分类号:S435.121.4 |
| 基金项目:陕西省科委重点课题 |
|
| The Classification of Agricultural Climatic Regions Affected with Fusarium Head Blight of Wheat in the Irrigated Areas of Central Shaanxi Province |
|
|
| Abstract: |
| The wet-inclined and dry-inclined agricultural climatic regions were classified with the clustering analysis based on average temperature,mean relative humility,mean precipitation and ≥5mm mean rain days from April to May in 1961～1989 at
19 meteorological stations in the irrigated areas of Central Shaanxi Province.The Agricultural climatic charaeteristies of the two regions were analysed as well.The study
showed that the wet-inclined region belonged to an area of normal occurrence of the
fusarium head blight epidemics of wheat,while the dry-inclined region was an area of
chance occurrence of the epidemics. |
| Key words: Agricultural climate,classification,fusarium head blight of wheat,the irrigated area of Central Shaanxi Province |
