干旱区研究

干旱区研究 ›› 2012, Vol. 29 ›› Issue (1): 173-178.

• 灌溉与土壤 • 上一篇    下一篇

天山北坡融雪期土壤湿度特征及其影响因子

杨与广1,2，刘志辉1,2,3,4，乔鹏1,2   

    1. 新疆大学 资源与环境科学学院,新疆 乌鲁木齐 830046
    2. 新疆大学 教育部绿洲生态重点实验室，新疆 乌鲁木齐 830046
    3. 新疆大学 干旱生态环境研究所，新疆 乌鲁木齐830046
    4. 干旱半干旱区可持续发展国际研究中心，新疆 乌鲁木齐 830046
  • 收稿日期:2010-11-29 修回日期:2011-02-18 出版日期:2012-01-15 发布日期:2012-02-27
  • 通讯作者: 刘志辉.E-mail:lzh@xju.edu.cn
  • 作者简介:杨与广(1987-),男,在读硕士,研究方向为资源环境信息与决策.E-mail:yyg20082008@sina.com
  • 基金资助:

    高等学校科技创新工程重大项目培育项目（708090）；国家自然科学基金项目（40871023）；中国沙漠气象科学研究基金（Sqj2007004）；绿洲生态教育部重点实验室开放课题（XJDX0201-2008-08）

Study on Soil Humidity and Its Affecting Factors on Northern Slope of the Tianshan Mountains in Snow Melting Season

YANG Yu-guang1,2，LIU Zhi-hui1,2,3,4，QIAO Peng1,2   

    1. College of Resources and Environment Sciences, Xinjiang University, Urumqi 830046, China
    2. Key Laboratory of Oasis Ecology of Ministry of Education, Xinjiang University, Urumqi 830046, China
    3. Institute of Arid Ecology and Environment, Xinjiang University, Urumqi 830046, China
    4. International Center for Desert Affairs-Research on Sustainable Development in Arid and Semiarid Lands, Urumqi 830046, China
  • Received:2010-11-29 Revised:2011-02-18 Online:2012-01-15 Published:2012-02-27

PDF (PC)

1115

赞

被引次数

12

摘要： 以天山北坡军塘湖流域为研究区，测量2009年和2010年该地区不同深度土壤湿度的变化，并对2 a融雪期各土壤湿度进行比较。结果表明：2 a间 0 cm和10 cm土壤湿度变化趋势一致，20 cm和30 cm土壤湿度变化差异较大。运用相关分析方法，分析2009年各层土壤湿度与2 m气温、土壤温度及雪深的关系，得出各层土壤湿度变化是气温、雪深和土壤温度综合作用的结果，但在不同时期不同深度土壤湿度所受的影响因子不同。同时分析了2009年和2010年不同土壤湿度特征与融雪洪水洪峰的关系，得出在融雪期，若下层（20 cm以下）土壤湿度变化小则出现洪水，反之则无洪水。其结果为进一步研究融雪径流模型和洪水径流预报提供基础资料。

关键词: 融雪期, 土壤湿度, 雪深, 气温, 土壤温度, 融雪洪水, 军塘湖流域, 天山北坡

Abstract: In this paper, soil humidity values were measured in the Juntang River Basin in northern slope of the Tianshan Mountains in 2009 and 2010 to study the change trend of soil humidity and compare soil humidity in snow melting season. The results show that the change trend of soil humidity was similar at soil depth from 0 cm to 40 cm in the study area, but its difference at soil depths of 20 cm and 30 cm was quite different. Correlation analysis was used to analyze the relationships between the soil humidity and the soil temperature at depth of 0-40 cm, air temperature at 2 m height and snow cover depth. The results reveal that soil humidity at different depths is jointly affected by air temperature, snow cover depth and soil temperature, but the main factor affecting soil humidity is difference from different soil layers. Moreover, the relationship between soil humidity and snow-melting flood peak in 2009 and 2010 was also analyzed, and the results revel that a flood may occur if the change of soil humidity below 20 cm was low, on the contrary, there was no flood if the change of soil humidity was high. The study results can be referred in the further study on developing snow melting runoff models and predicting snowmelting flood.

Key words: snow melting season, soil humidity, snow cover depth, air temperature, soil temperature, snow-melting flood, Juntang River Basin, the Northern Slope of the Tianshan Mountains