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• CN 62-1072/P
• ISSN 1000-0240
• 创刊于1979年
• 主管单位：中国科学院
• 主办单位：中国科学院寒区旱区
•                  环境与工程研究所
•                  中国地理学会

• 寒旱区水文与水资源 •

### 1951-2014年内蒙古地区气温、降水变化及其关系

1. 1. 内蒙古农业大学 水利与土木建筑工程学院, 内蒙古 呼和浩特 010018;
2. 内蒙古巴彦淖尔市水文勘测局, 内蒙古 巴彦淖尔 015000;
3. 内蒙古巴彦淖尔市水利水电勘测设计院, 内蒙古 巴彦淖尔 015000
• 收稿日期:2016-08-22 修回日期:2017-02-13 出版日期:2017-10-25 发布日期:2018-01-27
• 通讯作者: 马龙,E-mail:malong4444333@163.com E-mail:malong4444333@163.com
• 作者简介:李虹雨(1992-),女,2015年在太原理工大学获学士学位,现为内蒙古农业大学在读硕士研究生,从事水文及水资源、气候变化、环境演变及响应关系研究.E-mail:491975355@qq.com
• 基金资助:
内蒙古自治区高等学校青年科技英才支持计划；国家自然科学基金项目（51669016）；教育部“半干旱地区影响水资源高效利用的水文过程及其调控技术创新人才团队”资助

### Change and relationship of temperature and precipitation in Inner Mongolia during 1951-2014

LI Hongyu1, MA Long1, LIU Tingxi1, DU YanXia2, LIU Ming3

1. 1. College of Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China;
2. Bayannaoer Municipal Bureau of hydrology and reconnaissance, Bayannaoer 015000, Inner Mongolia, China;
3. Bayannaoer Inner Mongolia water conservancy and Hydropower Survey and Design Institute, Bayannaoer 015000, Inner Mongolia, China
• Received:2016-08-22 Revised:2017-02-13 Online:2017-10-25 Published:2018-01-27

Abstract: Inner Mongolia Autonomous Region has a vast territory with complex and varied climate. The study of climate change has certain reference value for the construction of ecological environment and the development and utilization of water resources. Based on the temperature and precipitation data from 70 meteorological stations in Inner Mongolia and its surrounding areas during 1951-2014, the characteristics and relationship of temperature and precipitation are analyzed by using the method of cluster and climate tendency rate. The result shows that annual (seasonal) average, minimum and maximum temperature changes in space increase with the increase of the latitude while precipitation is opposite to this trend. The annual changes of various types of temperature show an upward trend, among which the increasing rate of minimum temperature is the fastest. The climate tendency rate of the west, middle and east reached 0.427℃·(10a)-1、0.442℃·(10a)-1、0.395℃·(10a)-1 respectively. All kinds of temperature increase apparently in spring (winter). The overall trend shows that the minimum temperature contributes the most to climate warming. Interannual change of precipitation is pronounced yet the overall trend is inconspicuous. Precipitation in spring shows an upward trend and it increases the fastest in the central area[1.583 mm·(10a)-1], while it shows a downward trend during summer. Annual precipitation and various types of temperature are negatively correlated. Except that during some period the change of annual and seasonal (except for few summers) precipitation in divided regions is consistent with the change of all kinds of temperature, in other time they are opposite to each other. With the increase of temperature and decrease of precipitation, climate in the study area is developing toward warming and drying.

• P468.0+2