J4 ›› 2008, Vol. 26 ›› Issue (2): 90-94.

• 论文 • 上一篇    

气候变暖对河西走廊中部农业的影响

殷雪莲1 ,郝志毅2 ,魏 锋3 ,代德彬4   

  1. 1. 甘肃省张掖市气象局,甘肃张掖 734000; 2. 甘肃省气象局业务处,甘肃 兰州730020;3. 甘肃省嘉峪关市气象局,甘肃嘉峪关 735100; 4. 甘肃省张掖市民乐县气象局,甘肃民乐 734500
  • 收稿日期:2008-02-07 修回日期:2008-04-09 出版日期:2008-06-30 发布日期:2008-06-30
  • 作者简介:殷雪莲(1967-) ,女,甘肃高台人,工程师,现主要从事气象服务及相关方面的研究
  • 基金资助:

    张掖市气象局科研项目基金资助

Influence of Clima teWarm ing on Agr iculture in theM iddle of Hex i Corr idor

YIN Xuelian1 , HAO Zhiyi2 ,WE I Feng3 ,DA IDebin4   

  1. 1. ZhangyeM eteorological B ureau of Gansu Province, Zhangye 734000, China; 2. Gansu ProvincialM eteorological B ureau,Lanzhou 730020, China; 3. J iayuguan M eteorological B ureau of Gansu Province, J iayuguan 735100, China;4. M inleM eteorological S tation of Gansu Province, M inle 734500, China
  • Received:2008-02-07 Revised:2008-04-09 Online:2008-06-30 Published:2008-06-30

摘要:

选取河西走廊中部张掖市6县(区) 1961~2006年日平均气温、日最低气温、年降水资料,计算历年各地气温、积温、无霜冻期和农业气候生产力,分析河西走廊中部气候变暖对农业生产的影响。结果表明: 20世纪80年代末期以来,河西走廊中部气温呈持续升高趋势, 1987~2006年的平均气温明显增高,且冬季升温幅度最为显著,秋季次之,春、夏季升温幅度较小; ≥0 ℃和≥10 ℃积温增多,无霜冻期延长,气候生产力增加。80年代后期气候明显变暖,喜温作物面积扩大,复种指数提高,有利于冬季大棚蔬菜等设施农业的生产;干旱发生频率加大,病虫越冬存活率上升,导致农业生产成本
增加。
         

关键词: 气候变暖, 热量资源, 农业, 影响, 河西走廊中部

Abstract:

Based on the dailymean air temperature, the dailyminimum air temperature and annual p recip itation data from six counties ( district) in the middle part of the Hexi Corridor during 1961 - 2006, the accumulative temperature, no frost period and the agriculture climate p roductivities are calculated in each area, and the influence of climate warming on agriculture is analyzed. Results show that the air temperature p resented increasing trend since the 1980 s, and the average temperature during 1987 - 2006 increased obviously. Due to the accumulative temperatures ( ≥0 ℃ and ≥10 ℃) increase and the frost - free season p rolongation, the climate p roductivity increased also. Obvious climate warmingmade the thermophilic crop area enlarge and multip le crop index imp rove, and it is benefit to winter vegetables in greenhouses. Meanwhile, drought occurred frequently and the survival rate of disease - pest living through the winter rose, which led to the cost of agriculture p roduction increase.

Key words: climate warming, heat resource, influence, agriculture, the middle of Hexi Corridor

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