测绘通报 ›› 2023, Vol. 0 ›› Issue (10): 7-13,33.doi: 10.13474/j.cnki.11-2246.2023.0288

• 生态要素时空变化分析 • 上一篇    下一篇

黄河源头鄂陵湖面积变化及驱动力分析

李娜1, 王琳1, 文广超2, 王俊雷3, 武印文1   

  1. 1. 黄河交通学院交通工程学院, 河南 焦作 454000;
    2. 河南理工大学资源环境学院, 河南 焦作 454000;
    3. 河南黄河勘测信息工程院, 河南 郑州 450004
  • 收稿日期:2023-04-10 修回日期:2023-08-31 发布日期:2023-10-28
  • 作者简介:李娜(1986-),女,硕士,讲师,主要研究方向为遥感生态应用。E-mail:463361004@qq.com
  • 基金资助:
    旱区地下水文与生态效应教育部重点实验室中心开放基金(2014G1502022);河南理工大学博士基金(B2020-54)

Analysis of area change and driving forces for the Eling Lake at the source of the Yellow River

LI Na1, WANG Lin1, WEN Guangchao2, WANG Junlei3, WU Yinwen1   

  1. 1. School of Transportation Engineering, Huanghe Jiaotong University, Jiaozuo 454000, China;
    2. School of Resources and Environment, Henan Polytechnic University, Jiaozuo 454000, China;
    3. Henan Yellow River Survey Information Engineering Institute, Zhengzhou 450004, China
  • Received:2023-04-10 Revised:2023-08-31 Published:2023-10-28

摘要: 湖泊是组成生态系统的重要结构之一,探究黄河源头鄂陵湖面积变化,分析其驱动因素,可为黄河流域生态保护和环境治理提供理论依据和技术支持。本文选取2001—2020年Landsat系列遥感影像,结合气象、植被覆盖、土地利用类型等因素,采用NDWI、Mann-Kendall检验和Pearson相关性分析等方法,对鄂陵湖面积变化及其驱动力进行分析研究。结果表明:2001—2020年鄂陵湖平均面积为639.10 km2,最大值出现在2012年,为676.28 km2,最小值出现在2001年,为595.92 km2,湖泊面积变化经历稳定期(2001—2004年)、扩张期(2004—2012年)、收缩期(2012—2017年)、扩张期(2017—2020年)4个阶段,整体呈现扩张趋势;空间上,近20 年鄂陵湖西南部区域面积变化最为明显,2018年较上年面积扩张20.41 km2,湖泊收缩期西南部区域湖泊边界呈现出持续收缩的趋势,基础地质条件及气象条件的变化是西南部区域面积变化的主要原因;按各因子与湖泊面积的相关性大小,2001—2020年鄂陵湖面积变化的驱动因素从主到次依次为:降水、气温、植被覆盖、蒸发量、土地利用类型,降雨和气温是影响鄂陵湖面积变化的主要因素。

关键词: 鄂陵湖, 黄河流域, NDWI, 驱动力

Abstract: Lake is one of the important structures that constitute the ecosystem.Exploring the changes of the area of Eling Lake at the source of the Yellow River and analyzing its driving factors can provide theoretical basis and technical support for the ecological protection and environmental governance of the Yellow River Basin.Combined with meteorological,vegetation coverage,land use types and other factors,a series of Landsat remote sensing images from 2001 to 2020 are selected to carry out the analysis and research on the area change of Eling Lake and its driving force by using NDWI,Mann Kendall test,Pearson correlation analysis and other methods.The results show that the average area of Eling Lake from 2001 to 2020 is 639.10 km2,the maximum value is 676.28 km2 in 2012,and the minimum value is 595.92 km2 in 2001.The change of lake area has roughly gone through four stages: stability period (2001—2004),expansion period (2004—2012),contraction period (2012—2017) and expansion period (2017—2020),showing an overall expansion trend.In space,the area change in the southwest of Eling Lake has been the most obvious in the past 20 years,with an area expansion of 20.41 km2 compared with the previous year in 2018.During the shrinking period of the lake,the lake boundary in the southwest region shows a trend of continuous contraction.The changes in basic geological conditions and meteorological conditions are the main reasons for the change in the area volume in the southwest region.According to the correlation between various factors and lake area,the driving factors of the area change of Eling Lake from 2001 to 2020 can be ranked as follows: precipitation>temperature>vegetation coverage>evaporation>land use type.Rainfall and temperature are the main influencing factors on the changes in the area of Eling Lake.

Key words: Eling Lake, the Yellow River Basin, NDWI, driving force

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