天山山区典型内陆河流域径流组分特征分析

干旱区地理 ›› 2017, Vol. 40 ›› Issue (1): 37-44.

天山山区典型内陆河流域径流组分特征分析

孙从建^1,2, 陈伟¹

1 山西师范大学地理科学学院, 山西临汾 041000;
2 中国科学院新疆生态与地理研究所;荒漠与绿洲生态国家重点实验室, 新疆乌鲁木齐 830011

收稿日期:2016-08-29 修回日期:2016-12-04 出版日期:2017-01-25
作者简介:孙从建(1986-),男,博士(后),讲师,主要从事水循环及同位素水文研究.Email:suncongjian@sina.com
基金资助:
支持“率先行动”中国博士后科学基金会与中国科学院联合资助优秀博士后项目（2015LH048）；中国博士后科学基金资助项目（2016M590989）

Streamflow components in inland rivers in the Tianshan Mountains, Northwest China

SUN Cong-jian^1,2, WEI Chen¹

1 Shanxi Normal University, School of Geographical Science, Gongyuan Street 1, Linfen 041000, Shanxi, China;
2 State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences(CAS), Urumqi 830011, Xinjiang, China

Received:2016-08-29 Revised:2016-12-04 Online:2017-01-25

摘要/Abstract

摘要： 通过对天山南北坡的两个典型流域降水、地下水、河流、融冰雪水δD和δ¹⁸O及水化学检测，基于同位素径流分割模型定量分析了年内径流组分特征。结果表明：（1）两条河流的径流组成中地下水为构成径流的主要成分，其次是冰川融水，融雪水及降水，但南北坡径流组分表现出较明显的差异，乌鲁木齐河流域中冰川融水的比重要大于黄水沟流域，对气候变化响应明显。（2）两条河流在不同季节径流组分也表现出较大差异，春季径流组分差异最为明显。

关键词: 同位素径流分割, 径流组分, 乌鲁木齐河流域, 黄水沟流域

Abstract: Runoff generation and its dynamics are the fundamental of hydrology and are very crucial to water resource management. Based on isotope hydrograph method, the paper explored and compared the runoff generation mechanism of two typical inland rivers in the Tianshan Mountains (i.e., Urumqi River on the north slope and Huangshuigou River on the south slope), based on the monitored weather, flow and isotope data of a hydrological year. Results show as follows: (1) in both rivers, precipitation, river water and groundwater exhibit noticeable spatial and temporal variations in stable δ¹⁸O and δD compositions, and there is an increasing trend of δ¹⁸O in the river water during snowmelt period (late autumn and spring); (2) isotope hydrograph separation shows that generally, groundwater is the major recharging source (over 50% of streamflow), followed by glaciermelt, snowmelt and precipitation in these two rivers; Urumqi River has a larger contribution from glaciermelt than Huangshuigou River does, indicating that Urumqi River is more sensitive to the temperature change; (3) these two rivers have similar contribution components in all seasons except for spring in which Huangshuigou River has similar contributions from groundwater and snowmelt, while Urumqi River has a larger contribution from groundwater than snowmelt.

Key words: Isotopic separation, Streamflow component, Urumqi River Basin, Huangshuigou River Basin

中图分类号:

P333.1

孙从建, 陈伟. 天山山区典型内陆河流域径流组分特征分析[J]. 干旱区地理, 2017, 40(1): 37-44.

SUN Cong-jian, WEI Chen. Streamflow components in inland rivers in the Tianshan Mountains, Northwest China[J]. , 2017, 40(1): 37-44.

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