| 气候变暖对河西走廊中部农业的影响 |
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| 引用本文： | 殷雪莲,郝志毅,魏锋,代德彬.气候变暖对河西走廊中部农业的影响[J].甘肃气象,2008,26(2):90-94. |
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| 作者姓名： | 殷雪莲 郝志毅 魏锋 代德彬 |
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| 作者单位： | 甘肃省张掖市气象局 甘肃张掖734000(殷雪莲)，甘肃省气象局业务处 甘肃兰州730020(郝志毅)，甘肃省嘉峪关市气象局 甘肃嘉峪关735100(魏锋)，甘肃省张掖市民乐县气象局 甘肃民乐734500(代德彬) |
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| 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。
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| 关 键 词： | 气候变暖 热量资源 农业 影响 河西走廊中部 |
Influence of Climate Warming on Agriculture in the Middle of Hexi Corridor |
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| YIN Xuelian,HAO Zhiyi,WEI Feng,DAI Debin.Influence of Climate Warming on Agriculture in the Middle of Hexi Corridor[J].Gansu Meteorology,2008,26(2):90-94. |
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| Authors: | YIN Xuelian HAO Zhiyi WEI Feng DAI Debin |
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| Institution: | YIN Xuelian , HAO Zhiyi, WEI Feng, DAI Debin ( 1. Zhangye Meteorological Bureau of Gansu Province, Zhangye 734000, China; 2. Gansu Provincial Meteorological Bureau, Lanzhou 730020, China ; 3. Jiayuguan Meteorological Bureau of Gansu Province, Jiayuguan 735100, China ; 4. Minle Meteorological Station of Gansu Province, Minle 734500, China ) |
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| Abstract: | Based on the daily mean air temperature, the daily minimum air temperature and annual precipitation 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 productivities are calculated in each area, and the influence of climate warming on agriculture is analyzed. Results show that the air temperature presented increasing trend since the 1980s, and the average temperature during 1987 -2006 increased obviously. Due to the accumulative temperatures （ ≥0 ℃ and ≥ 10 ℃ ） increase and the frost -free season prolongation, the climate productivity increased also. Obvious climate warming made the thermophilic crop area enlarge and multiple crop index improve, 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 production increase. |
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| Keywords: | climate warming heat resource influence agriculture the middle of Hexi Corridor |
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