| 近40年来奇台县农业气候资源的变化特征分析 |
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| 引用本文： | 樊静.近40年来奇台县农业气候资源的变化特征分析[J].中国农学通报,2010,26(1):273-278. |
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| 作者姓名： | 樊静 |
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| 作者单位： | 新疆气候中心,乌鲁木齐,830002 |
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| 基金项目： | 新疆维吾尔自治区气象局青年气象科研基金(qx200908)支持 |
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| 摘 要： | 对1961～2000年奇台县平均气温和降水资料的变化特征进行统计分析，结果表明：奇台县气候趋向变暖，特别是1988年以后气温升高明显，冬季增温的贡献最大；40s来降水呈增加趋势， 1961～1983年为降水匮乏期，比多年平均减少了20.9mm，1984～2000年降水年际变化增大，尤其是夏季，90年代比70年代增加40.9mm。进一步分析发现：初霜日出现时间总体呈偏晚趋势，期间出现了1961-1974年偏早期，较历年平均偏早6d；终霜日的出现时间总体变化趋势不明显，表现为围绕趋势线上下振动；稳定≥1O0c 的活动积温呈减少趋势，减少速率为43.80c.d /10a; 日最高气温≥350c的日数明显减少，其中1993年未出现≥350c的高温日数。这些变化必将影响到农业生产的布局和结构。
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| 关 键 词： | 糯质 糯质 高粱 杂交种 栽培 |
| 收稿时间： | 2009/8/10 0:00:00 |
| 修稿时间： | 2009/10/15 0:00:00 |
Analysis on Change Characteristics 0f Agricultural Climate Resources in Qitai City |
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| Fan Jing.Analysis on Change Characteristics 0f Agricultural Climate Resources in Qitai City[J].Chinese Agricultural Science Bulletin,2010,26(1):273-278. |
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| Authors: | Fan Jing |
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| Institution: | Fan Jing (Xinfiang Climate Center, Urumuqi 830002) |
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| Abstract: | Based on the meteorological data of Qitai from 1961 to 2000,the change characteristics of the mean temperature and precipitation was statistically analyzed.It was concluded that the climate was warming up in Qitai, particular after 1986s and warming up in winter was most significantly.The precipitation was increasing and with a significant trend.From1961 to 1984 was a period of spare precipitation and a fluctuated increase from 1985 to 2000.The first frost date was delay.The active accumulated temperature of≥100c steadily decreased. These characters would affect the layout and structure of agricultural production and crop planting. |
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| Keywords: | climatic change first frost date and late frost date accumulated temperature |
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