长江科学院院报 ›› 2023, Vol. 40 ›› Issue (6): 93-99.DOI: 10.11988/ckyyb.20220308

• 水土保持与生态修复 • 上一篇    下一篇

基于遥感监测的2000—2020年三屯河流域植被覆盖时空演化分析

张艳娇1,2, 李巧1,2, 宿彦鹏3, 陶洪飞1,2, 姜有为1,2, 马合木江·艾合买提1,2, 魏建群1,2, 杨文新1,2   

  1. 1.新疆农业大学 水利与土木工程学院,乌鲁木齐 830052;
    2.新疆农业大学 新疆水利工程安全与水灾害防治重点实验室,乌鲁木齐 830052;
    3.甘肃省临夏回族自治州广河县水务局,甘肃 临夏 731300
  • 收稿日期:2022-03-28 修回日期:2022-07-15 出版日期:2023-06-01 发布日期:2023-06-21
  • 通讯作者: 李 巧(1987-),女,四川广安人,副教授,博士,硕士生导师,主要从事水环境保护的研究。E-mail:qiaoli_xjau@qq.com
  • 作者简介:张艳娇(1996-),女,辽宁营口人,硕士研究生,主要从事水环境保护研究。E-mail:2487459768@qq.com
  • 基金资助:
    国家自然科学基金项目(41762018);新疆维吾尔自治区“天山青年计划”青年博士科技人才培养项目(2020Q079);“新疆水利工程安全与水灾害防治自治区重点实验室”2021年开放课题项目(ZDSYS-JS-2021-09,ZDSYS-YJS-2022-20)

Spatial-Temporal Evolution of Vegetation Cover in Santun River Basin from 2000 to 2020 Based on Remote Sensing Monitoring

ZHANG Yan-jiao1,2, LI Qiao1,2, SU Yan-peng3, TAO Hong-fei1,2, JIANG You-wei1,2, AIHEMAITI·Mahemujiang1,2, WEI Jian-qun1,2, YANG Wen-xin1,2   

  1. 1. College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China;
    2. Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Xinjiang Agricultural University, Urumqi 830052, China;
    3. Guanghe County Water Affairs Bureau of Linxia Hui Autonomous Prefecture, Linxia 731300, China
  • Received:2022-03-28 Revised:2022-07-15 Published:2023-06-01 Online:2023-06-21

摘要: 为分析三屯河流域植被覆盖时空变化特征,基于Landsat卫星遥感数据、像元二分模型、图像差值法及变异系数等方法手段对2000—2020年20 a间植被覆盖时空分布特征、趋势及稳定性进行分析。三屯河流域植被覆盖度呈现逐年增长趋势,特别是2012—2015年的年均增长速度为4.93%/(10 a);植被覆盖分布在空间上表现出两端高、中间低的规律性;三屯河流域植被覆盖改善区域占比39.58%,整体呈现改善的趋势;三屯河流域内植被覆盖度较为稳定,区域绝大部分处于弱变异与中等变异。三屯河流域植被覆盖演化受到自然因素和人类因素影响,自然因素的影响主要体现在温度与降水量的改变,人类活动因素的影响主要体现在土地利用类型的改变上。研究成果可为促进三屯河流域生态恢复、经济发展提供科学依据。

关键词: 植被覆盖度, Landsat卫星遥感, 像元二分模型, 图像差值法, 变异系数, 三屯河流域

Abstract: To analyze the spatiotemporal characteristics of vegetation cover in the Santun River Basin, a comprehensive study was conducted using a combination of Landsat satellite remote sensing data, pixel-based binary models, image differencing methods, and coefficient of variation. The period from 2000 to 2020, spanning 20 years, was examined to assess the distribution patterns, trends, and stability of vegetation cover. The results reveal a consistent annual increase in vegetation cover within the Santun River Basin, with a notable average growth rate of 4.93% per decade from 2012 to 2015. Spatially, the distribution of vegetation cover follows a distinctive pattern, with higher values observed at the two ends and lower values in the central regions. Additionally, approximately 39.58% of the Santun River Basin exhibits improved vegetation cover, indicating an overall positive trend. Notably, the majority of the basin displays relatively stable vegetation cover, characterized by minor to moderate variations.The evolution of vegetation cover in the Santun River Basin is influenced by a combination of natural and human factors. Changes in temperature and precipitation patterns constitute the primary natural influences, while alterations in land use types serve as the main drivers of change induced by human activities. These findings provide scientific foundation for promoting ecological restoration and facilitating sustainable economic development within the Santun River Basin.

Key words: vegetation coverage, Landsat satellite remote sensing, pixel binary model, image difference method, coefficient of variation, Santun River Basin

中图分类号: