1960-2012年河西内陆河上游山区降水量变化及其区域性差异分析

doi:10.7522/j.issn.1000-0240.2013.0163

冰川冻土 ›› 2013, Vol. 35 ›› Issue (6): 1474-1480.doi: 10.7522/j.issn.1000-0240.2013.0163

1960-2012年河西内陆河上游山区降水量变化及其区域性差异分析

蓝永超¹, 刘金鹏², 丁宏伟³, 鲁承阳⁴, 沈永平¹, 胡兴林⁵, 喇承芳⁴, 宋洁⁴, 高黎明¹

1. 中国科学院寒区旱区环境与工程研究所, 甘肃兰州 730000;
2. 甘肃省科学院地质自然灾害防治研究所, 甘肃兰州 730000;
3. 甘肃省地质矿产勘察开发局, 甘肃兰州 730000;
4. 黄河水利委员会上游水文水资源局, 甘肃兰州 730030;
5. 甘肃省水文水资源局, 甘肃兰州 730000

收稿日期:2013-02-01 修回日期:2013-06-11 出版日期:2013-12-25 发布日期:2014-01-11
作者简介:蓝永超（1957-），男，四川资阳人，研究员，1982年毕业于四川大学，现主要从事气候变化和水文水资源研究. E-mail: lyc@lzb.ac.cn
基金资助:
国家自然科学基金重大研究计划项目(91225302)；中国科学院重点部署项目(Y322G73001)；国家自然科学基金面上项目(41240002；91225301)资助

Changes of Precipitation in Mountainous Areas of the Three Large Inland River Basins in the Hexi Corridor and Their Regional Differences During 1960-2012

LAN Yong-chao¹, LIU Jin-peng², DING Hong-wei³, LU Cheng-yang⁴, SHEN Yong-ping¹, HU Xing-lin⁵, LA Cheng-fang⁴, SONG Jie⁴, Gao Li-ming¹

1. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China;
2. Geologic Hazards Prevention Institute, Gansu Academy of Sciences, Lanzhou Gansu 730000, China;
3. Gansu Provincial Bureau of Geology and Mineral Exploitation and Development, Lanzhou Gansu 730000, China;
4. Hydrology and Water Resources Bureau the Upper Reaches of the Yellow River, Yellow River Conservancy Commission, Lanzhou Gansu 730030, China;
5. Hydrology and Water Resources Bureau of Gansu Province, Lanzhou Gansu 730000, China

Received:2013-02-01 Revised:2013-06-11 Online:2013-12-25 Published:2014-01-11

摘要/Abstract

摘要：

基于我国河西内陆河流域有关水文、气象台站的观测数据，对1960年代以来河西走廊的石羊河、黑河、疏勒河三大内陆河水系上游山区降水变化特征、趋势及区域时空变化差异进行了分析.结果表明：受全球变暖的影响，石羊河、黑河、疏勒河流域上游的降水量年代际、年际及季节性的变化总体上呈增加的态势，但不同区域降水增幅存在着一定的差异.其中，1960年代，位于祁连山东部的石羊河水系上游山区、中部的黑河水系上游山区及西部的疏勒河水系上游山区普遍少雨；1970年代，石羊河山区降水偏多并持续至今，黑河、疏勒河水系上游山区则降水偏少；1980年代，三大水系上游山区均多雨；1990年代的黑河、疏勒河山区和2000年代的三大水系上游山区均多雨；2010年以来，黑河山区降水偏少，石羊河与疏勒河山区降水均偏多.相对而言，位于祁连山西部山区的疏勒河水系上游年降水量与夏季降水量的增长较为显著.

关键词: 全球变暖, 上游山区, 三大水系, 河西内陆区

Abstract:

All rivers in the Hexi Corridor of Gansu Province originate from the north slopes of the Qilian Mountains and respectively belong to three large river systems, which are the Shiyang River, the Heihe River and the Shule River from east to west. The rivers are supplied by precipitation and snow and ice meltwater from the Qilian Mounta-ins. Therefore, the changes in precipitation and temperature in the upriver watershed of the rivers have quite pronounced effect on the change in mountain runoff and reasonable utilization of water resources in the Hexi Corridor. For this reason, the Qilian Mountains, together with the upstream watershed and runoff forming areas, are chosen as a study area, where the change characteristics and variation trend of precipitation under global warming backdrop are analyzed based on the observed data in the area. The results show that precipitations in the upper reaches of Heihe River and Shule River located in the middle and western Qilian Mountains have increased, but the annual and seasonal precipitations decreased in the 1960s, which means, as a whole, the climate in the upper reaches of the three river systems has shifted to wet in the past about 60 years.

Key words: global warming, upriver mountain areas, three large river systems, Hexi inland region

中图分类号:

P333.1

蓝永超, 刘金鹏, 丁宏伟, 鲁承阳, 沈永平, 胡兴林, 喇承芳, 宋洁, 高黎明. 1960-2012年河西内陆河上游山区降水量变化及其区域性差异分析[J]. 冰川冻土, 2013, 35(6): 1474-1480.

LAN Yong-chao, LIU Jin-peng, DING Hong-wei, LU Cheng-yang, SHEN Yong-ping, HU Xing-lin, LA Cheng-fang, SONG Jie, Gao Li-ming. Changes of Precipitation in Mountainous Areas of the Three Large Inland River Basins in the Hexi Corridor and Their Regional Differences During 1960-2012[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2013, 35(6): 1474-1480.

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1960-2012年河西内陆河上游山区降水量变化及其区域性差异分析

Changes of Precipitation in Mountainous Areas of the Three Large Inland River Basins in the Hexi Corridor and Their Regional Differences During 1960-2012

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