| 辽宁省负积温地理分布特征与模拟 |
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| 引用本文： | 纪瑞鹏,张玉书,冯锐,陈鹏狮,张淑杰.辽宁省负积温地理分布特征与模拟[J].气象科技,2005,33(4):360-362. |
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| 作者姓名： | 纪瑞鹏 张玉书 冯锐 陈鹏狮 张淑杰 |
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| 作者单位： | 中国气象局沈阳大气环境研究所,沈阳,110016 |
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| 基金项目： | 中国气象局“全国第三次农业气候区划”项目资助 |
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| 摘 要： | 负积温是表征霜期农业生产热量资源的生态指标之一，通过对辽宁省48个气象站1961～1990年日平均气温观测资料进行统计，计算了冬季（11月至翌年3月）各月及整个冬季的负积温值，并分析其地理分布特征；利用地理信息系统技术，建立了负积温多年平均值与经度、纬度和海拔高度的小网格推算模型，并在ARCGIS平台上制作负积温数字图像，大大提高了传统手段分析负积温的精度，为发展霜期农业生产和农业结构调整提供依据。
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| 关 键 词： | GIS 负积温 地理分布 小网格推算模型 地理分布特征 辽宁省 地理信息系统技术 模拟 农业结构调整 农业生产 |
| 收稿时间： | 2004-04-07 |
| 修稿时间： | 2004-06-22 |
Characteristics of Geographical Distribution of Negative Accumulated Temperature in Liaoning Province |
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| Ji RuiPeng;Zhang YuShu;Feng Rui;Chen PengShi;Zhang ShuJie.Characteristics of Geographical Distribution of Negative Accumulated Temperature in Liaoning Province[J].Meteorological Science and Technology,2005,33(4):360-362. |
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| Authors: | Ji RuiPeng;Zhang YuShu;Feng Rui;Chen PengShi;Zhang ShuJie |
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| Abstract: | The negative accumulated temperature is an ecological indicator of heat resources in agriculture production in winter. In order to accelerate the agriculture development in frost season and give full play to the land resources, it is essential to find out the geographical distribution characteristics of negative accumulated temperature. Based on the daily mean air temperature of 48 meteorological stations in Liaoning Province from 1961 to 1990, the negative accumulated temperatures for all the stations and the geographical distribution characteristics were statistically calculated and analyzed. The multi-year calculation models of accumulated temperature average using latitude, longitude and altitude by means of the small grid method were developed, and the digital pictures of negative accumulated temperature can be drawn on the ARCGIS platform to improve the analysis precision. |
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| Keywords: | GIS negative accumulated temperature geographical distribution small grid model |
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