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干旱区地理 ›› 2017, Vol. 40 ›› Issue (3): 633-639.

• 地球信息科学 • 上一篇    下一篇

毛乌素沙地中部地表水体1999-2015时空动态变化特征及驱动分析

张佩云1, 王凯2, 王戈飞1, 梁枥文1, 张世强1   

  1. 1 西北大学城市与环境学院, 陕西 西安 710127;
    2 西北师范大学地理与环境科学学院, 甘肃 兰州 730070
  • 收稿日期:2016-10-24 修回日期:2017-02-13 出版日期:2017-05-25
  • 通讯作者: 张世强,教授,研究方向为流域系统中各要素及水循环的观测、遥感反演与模拟等.Email:zhangsq@lzb.ac.cn
  • 作者简介:张佩云(1993-),女,硕士研究生,研究方向为遥感与地理信息科学.Email:13152035260@163.com
  • 基金资助:

    水利部公益性行业科研专项”云南高原湖泊水资源地面-遥感监测技术研究”(201401026)

Spatial-temporal changes and factor analysis of surface water in the middle Mu Us Sandy Land areas from 1999 to 2015

ZHANG Pei-yun1, WANG Kai2, WANG Ge-fei1, LIANG Li-wen1, ZHANG Shi-qiang1   

  1. 1 Northwest University, Xi'An 710127, Shaanxi, China;
    2 Northwest Normal University, Lanzhou 730070, Gansu, China
  • Received:2016-10-24 Revised:2017-02-13 Online:2017-05-25

摘要: 地表水体对于毛乌素沙地的经济发展和生态保护具有重要作用。利用1999、2006、2013、2015 年Landsat TM/ETM+遥感影像,获取了毛乌素沙地中部近16 a 来地表水体面积的时空变化特征。结果表明:水体面积以2006年为界呈先萎缩后回升的变化特征,1999-2006年地表水体总面积从368.52 km2缩减到了242.81 km2,缩减了129.53 km2(34.1%)。2013 年和2015 年水体面积回升,但2015年仍比1999年减少18.6%。研究区地表水体的变化在北部主要受煤炭开采大幅增加(2 252.2%)的影响,而南部主要受灌溉面积增加(92.4%)和畜牧量大幅增加(24 614.7%)的影响。以伊旗查干淖尔为代表的天然水体尽管受采矿用水增加等的影响,但在严格的水资源保护制度下面积变化不大,而以伊和日淖尔为代表的天然水体面积缩减显著,表明地表水体需要积极调控和适应才能维持稳定。

关键词: 毛乌素沙地, 地表水体变化, 遥感, 人类活动, 调控

Abstract: The surface water is very important to local economic development and ecological protection in Mu Us Sandy Land among Inner Mongolia,Ningxia and Shaanxi Province,China. The spatial-temporal changes of surface water in the middle areas of Mu Us Sandy Land were analyzed by using Landsat TM/ETM+ images of 1999,2006,2013,2015. The surface water shrunk about 125.71 km2(35.2%)from 1999(368.51 km2)to 2006 (242.81 km2),and then recovered in 2013(299.59 km2)and 2015(299.82 km2). The area of water body in 2015 was still about 18.64% less than that in 1999,the long-term change trends of annual precipitation and yearly average air temperature are not significant(at ɑ =0.05). The water consumption with effective irrigation area,livestock, raw coal production from 1999 to 2014 suggest that water body decrease mainly caused by increased coal mining(2 252.2%)in north part while by increased agricultural irrigation(92.4%)and grazing(24 614.7%)in South part. We found that Chagan Lake is nearly stable with small fluctuation under the increased coal mining and the strictest water protect policy,while the area of natural water body of Yiheri Lake has continued to decline by 1 km2(29.9%)over the past 16 years. These results indicate that the water protection measures are very important to maintain the stability of the lakes.

Key words: Mu Us Sandy Land, surface water changes, remote sensing, human activity, regulate and control

中图分类号: 

  • TP79