干旱地区农业研究2011，Vol.29Issue(2)：243-252,10.
近49年乌鲁木齐地区农业热量资源时空变化
Analysis of spatial-temporal variation of agricultural-heat resources in recent 49 years in Urumqi region
摘要
Abstract
Based on the daily temperature data during 1961 ～ 2009 from 9 meteorological stations in Urumqi region,the fundamental spatial-temporal change characteristics of various agricultural - heat elements, such as the average annual temperature, the average temperature on January and July, extreme minimum temperature and extreme maximum temperature in a year, frost-free period, the days of ≥ 0℃ and ≥ 10℃, annual accumulated temperature of ≥ 0℃ and ≥ 10℃, negative accumulated temperature in winter, mean daily temperature range from April to September were analyzed by using the methods of linear regression and Kriging interpolation. The main results are obtained as follows: ① Agricultural-heat resources is obviously different in various regions in Urumqi region, generally, the mean temperature of annual and July, extreme minimum and extreme maximum temperature in a year, frost-free period, the days of ≥0℃ and ≥ 10℃, annual accumulated temperature of ≥ 0℃ and ≥ 10℃, mean daily temperature range from April to September is higher or more in plain and valley than that in mountainous areas. By the influence of inversion temperature in winter, January average temperature, extreme minimum temperature and negative accumulated temperature is higher inthe altitudinal belt from 900m to 2 100 m than that in other ares. ② In the background of global warming, agriculturalheat resources have a significant increasing in recent 49 years in Urumqi region, generally, the average annual temperature, the average temperature on January and July, extreme minimum temperature and extreme maximum temperature in a year, frost-free period ,the days of ≥0℃ and ≥ 10℃, annual accumulated temperature of ≥0℃ and ≥ 10℃, and negative accumulated temperature have a increasing trend, while the mean temperature range from April to September has a decreasing trend. But the change rate of them varies in different regions in Urumqi region, and generally, the agricultural-heat resources have a more increment in urban and plain than that in Tianshan mountainous area. Agricultural heat resources increasing is a double - edged sword to agriculture and livestock production. Therefore, we must deal it with the measures of drawing on the advantages and avoiding disadvantages to promoting the development of agricultural productian.关键词
乌鲁木齐地区/热量资源/气候变化Key words
Urumqi region/ agricultural-heat resources/ climatic change分类
农业科技引用本文复制引用
普宗朝,张山清..近49年乌鲁木齐地区农业热量资源时空变化[J].干旱地区农业研究,2011,29(2):243-252,10.基金项目
新疆气象局气象科研项目(200708,201127) （200708,201127）
