| 基于宏观地理因子估算黄土高原地区降水资源空间分布 |
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| 引用本文： | 沈红,刘文兆.基于宏观地理因子估算黄土高原地区降水资源空间分布[J].干旱地区农业研究,2011,29(1):237-241. |
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| 作者姓名： | 沈红 刘文兆 |
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| 作者单位： | 西北农林科技大学资源环境学院;中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室; |
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| 基金项目： | 中国科学院知识创新工程重要方向项目(KZCX2-YW-424); 黄土高原土壤侵蚀与旱地农业国家重点实验室专项(10502-Z10) |
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| 摘 要： | 基于经度、纬度和海拔高度3种宏观地理要素信息,采用"逐步回归的趋势面模拟+残差内插"法,建立黄土高原地区降水量空间分布的回归模型,并根据模型估算结果分析该区降水资源的空间分布特征.回归模型的显著性检验及站点检验表明:经度、纬度和海拔高度3种宏观地理因子对黄土高原地区降水量的空间分布具有很强的决定作用;基于3种宏观地理因...
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| 关 键 词： | 宏观地理因子 降水 黄土高原 空间化 |
Simulating spatial distribution of precipitation over the Loess Plateau based on macro-geographical factors |
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| SHEN Hong,LIU Wenzhao.Simulating spatial distribution of precipitation over the Loess Plateau based on macro-geographical factors[J].Agricultural Research in the Arid Areas,2011,29(1):237-241. |
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| Authors: | SHEN Hong LIU Wenzhao |
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| Institution: | SHEN Hong1,LIU Wen-zhao1,2(1.College of Resources and Environment,Northwest A & F University,Yangling,Shaanxi 712100,China,2.Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,State Key Laboratory of Soil Erosion and Dryland Farming in the Loess Plateau,China) |
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| Abstract: | Based on three macro-geographical factors,latitude,longitude and elevation,regression models were built for precipitation across the Loess Plateau by adopting trend surface model,stepwise regression analysis and residual interpolation. Through significant tests for the regression models and station validation for the simulations,the results showed that the spatial difference of annual precipitation over the Loess Plateau is largely determined by the three geographical factors involved in this study,and the ... |
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| Keywords: | macro-geographical factors precipitation the Loess Plateau spatialization |
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