荒漠-绿洲过渡带土壤温度变化分析

干旱区研究 ›› 2019, Vol. 36 ›› Issue (4): 809-815.

荒漠-绿洲过渡带土壤温度变化分析

缑倩倩¹，李乔乔^1，3，屈建军²，王国华¹

1. 山西师范大学地理科学学院，山西临汾 041004； 2. 中国科学院沙漠与沙漠化重点实验室，甘肃兰州 730000；3. 西北师范大学地理与环境科学学院，甘肃兰州 730070

收稿日期:2018-10-12 修回日期:2019-01-12 出版日期:2019-07-15 发布日期:2019-07-15
通讯作者: 缑倩倩
作者简介:缑倩倩(1987-)，女，博士，副教授，主要从事干旱半干旱区生态恢复方面的科研与教学工作. E-mail: gqqqianqian@163.com
基金资助:
国家自然科学基金项目（41701045，41807518）；中国科学院重点实验室开放基金项目（KLDD-2017-008）

Variation of Soil Temperature in the Desert-Oasis Ecotone

GOU Qian-qian¹, LI Qiao-qiao^{1, 3}, QU Jian-jun², WANG Guo-hua¹

1. College of Geographic Sciences, Shanxi Normal University, Linfen 041004, Shanxi, China;
2. Key Laboratory of Desert and Desertification, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China;
3. College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, Gansu, China

Received:2018-10-12 Revised:2019-01-12 Online:2019-07-15 Published:2019-07-15

摘要/Abstract

摘要： 根据中国科学院临泽内陆河流域站2004—2014年的土壤温度与气象要素数据，分析了河西走廊中部荒漠-绿洲过渡带土壤温度年内和年际变化规律及主要影响因素。结果表明：土壤温度日变化与月变化大致呈正弦曲线，各层土壤最高、最低温度出现的时间随着土壤深度的增加逐渐推迟；年均土壤温度总体上随着土壤深度的加深先减小后增加；气温是与土壤温度变化相关性最强的气象要素；同时，明确了该区3个特征差异明显的土壤温度层次：0~20 cm土壤温度活跃层，40 cm土壤温度过渡层和60~100 cm土壤温度稳定层，与其他地区结果有所差异。最后，利用相关性分析、多元逐步线性回归方法建立了气象指标与各层土壤温度之间经验预报方程。

关键词: 荒漠-绿洲过渡带, 土壤温度, 变化特征, 临泽, 河西走廊

Abstract: In this study, the data of soil temperature and meteorological factors at a station in an inland river basin in Linze from 2004 to 2014 were used to analyze the soil temperature variation and its main affecting factors in the desert-oasis ecotone in central Hexi Corridor. The results showed that both the daily and monthly changes of soil temperature were sine-curve-shaped, and the occurrence time of the highest and lowest temperature in each soil layer was gradually delayed with the increase of soil depth. The average annual soil temperature was generally decreased at first and then increased with the increase of soil depth. The correlation between air temperature and soil temperature was the most significant. Three distinct layers of soil temperature in this region were defined, i.e., the soil layers of 0-20 cm deep, around 40 cm deep and 60-100 cm deep. Finally, the empirical prediction equations between meteorological indexes and soil temperature of each soil layer were developed using the correlation analysis and the multiple stepwise linear regression.

Key words: desert-oasis ecotone')">

desert-oasis ecotone, soil temperature, variation characteristic, Linze, Hexi Corridor

缑倩倩, 李乔乔, 屈建军, 王国华. 荒漠-绿洲过渡带土壤温度变化分析[J]. 干旱区研究, 2019, 36(4): 809-815.

GOU Qian-qian, LI Qiao-qiao, QU Jian-jun, WANG Guo-hua. Variation of Soil Temperature in the Desert-Oasis Ecotone[J]. Arid Zone Research, 2019, 36(4): 809-815.

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