| 河西走廊近40 a气候生产潜力特征研究 |
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| 引用本文： | 郭小芹,刘明春.河西走廊近40 a气候生产潜力特征研究[J].中国沙漠,2011,31(5):1323-1329. |
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| 作者姓名： | 郭小芹 刘明春 |
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| 作者单位： | 1. 中国气象局兰州干旱气象研究所甘肃省干旱气候变化与减灾重点实验室／中国气象局干旱气候变化与减灾重点开放实验室,甘肃兰州730020／甘肃省武威市气象局,甘肃武威733000
2. 甘肃省武威市气象局,甘肃武威,733000 |
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| 基金项目： | 公益性行业(气象)科研专项“西北地区旱作农业对气候变暖的响应特征及其预警和应对技术研究”(GYHY200806021)资助 |
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| 摘 要： | 根据河西走廊20个气象台站1971—2006年4—9月温度和降水资料,采用Thornthwaite Memorial模型计算气候生产潜力,使用Mann-Kendall检验、EOF经验正交函数、敏感性分析等研究其时空变化特征。分析表明,河西走廊农业气候资源与地理分布显著相关,东南部明显优于西北部。气候变化显著趋暖,气候生产潜力减少趋势明显,减少中心向西偏移,严重限制了西部农业发展。气候生产潜力对温度响应东部比西部明显,特别是祁连山东段增暖增益显著;对降水响应西部比东部明显,尤其是西部及临近沙漠边缘地带干旱区增湿增益显著; 暖湿效应使气候生产潜力普遍增加。在农业集中区降水对气候生产潜力影响比温度显著,从根本上看降水是研究区域农业增产的首要因素。
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| 关 键 词： | 气候生产潜力 时空特征 河西走廊 |
| 收稿时间： | 2010-12-9 |
| 修稿时间： | 2011-2-28 |
Spatiotemporal Characteristics of Climate Productivity Potential during Last 40 Years in the Hexi Corridor |
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| GUO Xiao-qin,LIU Ming-chun.Spatiotemporal Characteristics of Climate Productivity Potential during Last 40 Years in the Hexi Corridor[J].Journal of Desert Research,2011,31(5):1323-1329. |
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| Authors: | GUO Xiao-qin LIU Ming-chun |
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| Institution: | GUO Xiao-qin1,2,LIU Ming-chun2(1.Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province,Key Open Laboratory of Arid Climate Change and Disaster Reduction of CMA,Lanzhou Institute of Arid Meteorology,China Meteorological Administration,Lanzhou 730020,China,2.Wuwei Meteorological Bureau,Wuwei 733000,Gansu,China) |
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| Abstract: | Based on temperature and precipitation data of the summer half year during 1971-2006 from 20 meteorological stations in the Hexi Corridor,the climate productivity potential was calculated by making use of the Thornthwaite Memorial model.Mann-Kendall,EOF and sensitivity analysis were used to study its temporal and spatial changes.The results showed that agro-climatic resources and geographic location were closely related,and the southeast of the Hexi Corridor was superior to the northwest.A significant warmi... |
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| Keywords: | climate productivity potential spatiotemporal change Hexi Corridor |
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