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当前位置: 首页 > 文章 > 辽宁西部热量资源及霜期变化特征 中国农学通报 2015,31 (14) 183-187
Position: Home > Articles > Variation Characteristics of Heat Resources and Frost Period in Western Liaoning Chinese Agricultural Science Bulletin 2015,31 (14) 183-187

辽宁西部热量资源及霜期变化特征

作  者：
张富荣;尹洪涛;张国林;苏华
单  位：
辽宁省朝阳市气象局
关键词：
气温;特征;热量资源;霜期;辽宁西部
摘  要：
为了充分利用热量资源,预防霜冻灾害,更好地服务于农业生产结构调整。采用1953—2012年气候资料,运用气候诊断分析方法分析辽西地区热量资源和霜期变化。结果表明:辽西地区年平均气温、夏半年平均气温、冬半年平均气温变化速率分别为0.311℃/10 a、235℃/10 a、219℃/10 a;年平均最低气温、年平均气温、年平均最高气温在1986—1988年出现暖突变;暖突变之后使得近20年(1993—2012年)≥0℃、≥10℃活动积温增加256℃·d、233℃·d,初霜冻日期后推8天。热量资源虽然增加,而终霜日期并未提前结束,故大田播种期也不能提前;初霜日期明显后推,可考虑成熟期也后推的原则,如果播种期退后8~10天可减少95%终霜冻的威胁。辽西地区气温升高、积温增加和无霜期延长,对区域农业经济发展具有促进作用。
译  名：
Variation Characteristics of Heat Resources and Frost Period in Western Liaoning
作  者：
Zhang Fuyong;Yin Hongtao;Zhang Guolin;Su Hua;Meteorological Bureau of Chaoyang City;
关键词：
temperature;;characteristic;;heat resources;;frost period;;Western Liaoning
摘  要：
In order to serve the agricultural production structural adjustment, fully utilize heat resources andprevent frost damage, the author adopted climate data from 1953- 2012 and the climate diagnose analysismethod, to analyze the variation of heat resources and frost period of Western Liaoning. The results showed thatthe change rate of annual average temperature, average temperature of summer half year, average temperatureof winter half year in Western Liaoning was 0.311℃/10 a, 235℃/10 a, 219℃/10 a, respectively. The annualaverage lowest temperature, the annual average temperature and the average highest temperature had warmingmutations during 1986-1988; after such warming mutations, active accumulated temperature of recent 20 years(1993—2012) of ≥0℃ and ≥10℃ had increased 256℃ · d and 233℃ · d, and the first date of frost waspostponed by 8 days. Even though heat resources had increased, yet the final frost date did not end in advance,therefore, the field sowing time could not be moved ahead. The first frost date was postponed significantly, sothe principle of postponing the mutual period could be considered, and the postponing of the sowing date by 8-10 days could reduce 95% of the final frost threats. The high temperature, the increasing accumulatedtemperature and the extension of non-frost period in Western Liaoning could promote the regional developmentof agricultural economy.

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