西北旱区主要气候资源的空间变异性研究

发布时间：2018-04-16 20:26

  本文选题：气候资源 + 变异系数　； 参考：《干旱区资源与环境》2017年08期

【摘要】：西北旱区地处生态脆弱区,为充分利用其气候资源、协调区域生态环境与社会经济发展,开展主要气候资源的空间变异性研究极为重要。文中利用西北旱区191个气象站点的7个主要气象因子,运用经典统计学和地统计学分析方法来研究各气象因子空间变异性特征。结果表明:(1)干燥度的变异系数1,其余因子变异系数皆∈(0.157,0.712),表明各气象因子在空间上呈现中等或强烈的空间变异特征;(2)各因子的基底效应值均0.75,说明气象因子主要受到结构性因子的影响,不会轻易改变或在短时期内难以改变;(3)降水量和相对湿度自西北向东南呈现出递增趋势;蒸发量和干燥度则反之。年均温于新疆和陕西南部出现峰值;日照时数和风速整体上自北向南呈递减趋势。文中通过研究西北旱区气候变化的空间变异特征,有利于把握西北旱区的气候变化规律,为西北旱区农牧业发展提供科学依据。
[Abstract]:The arid region of Northwest China is located in the ecologically fragile area. In order to make full use of its climatic resources and coordinate the regional ecological environment and social economic development, it is very important to carry out the spatial variability study of the main climatic resources.In this paper, seven main meteorological factors of 191 meteorological stations in arid area of Northwest China are used to study the spatial variability of meteorological factors by classical statistics and geostatistical analysis.The results show that the coefficient of variation of drying degree is 1, and the coefficient of variation of other factors are all 鈭，

本文编号：1760454