欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 2021, Vol. 32 ›› Issue (9): 3177-3184.doi: 10.13287/j.1001-9332.202109.012

• 研究论文 • 上一篇    下一篇

基于遥感信息的黄土高原主要灌溉农业分布区生态安全特征

李晓明1, 孙从建1*, 孙九林1,2, 陈伟1, 李新功1   

  1. 1山西师范大学地理科学学院, 山西临汾 041000;
    2中国科学院地理科学与资源研究所, 北京 100101
  • 收稿日期:2021-02-03 接受日期:2021-06-01 出版日期:2021-09-15 发布日期:2022-03-15
  • 通讯作者: * E-mail: suncongjian@sina.com
  • 作者简介:李晓明, 女, 1993年生, 硕士研究生。主要从事生态安全评价研究。E-mail: 545734264@qq.com
  • 基金资助:
    山西省归国留学人员科研项目(2020-092)资助

Ecological security characteristics of main irrigated agricultural areas on the Loess Plateau based on remote sensing information

LI Xiao-ming1, SUN Cong-jian1*, SUN Jiu-lin1,2, CHEN Wei1, LI Xin-gong1   

  1. 1College of Geographical Science, Shanxi Normal University, Linfen 041000, Shanxi, China;
    2Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2021-02-03 Accepted:2021-06-01 Online:2021-09-15 Published:2022-03-15
  • Contact: * E-mail: suncongjian@sina.com
  • Supported by:
    Scientific Research Foundation of Returned Overseas Scholars of Shanxi Province (2020-092).

摘要: 生态安全是区域经济社会可持续发展的重要保证。本研究基于2000—2018年间的遥感数据,系统分析了黄土高原4个主要灌溉农业分布区(银川平原、河套平原、汾河谷地和渭河平原)植被覆盖度(FVC)和遥感生态指数(RSEI)的变化特征。结果表明: 2000—2018年间,研究区FVC整体呈下降趋势,但4个不同灌溉农业分布区FVC变化趋势各异。研究区RSEI整体呈下降趋势,其中,银川平原和渭河平原的RSEI下降明显,分别下降0.06和0.07,河套平原的RSEI无明显变化,而汾河谷地的RSEI整体呈上升趋势。4个区域中,银川平原、汾河谷地的生态稳定性较差,河套平原的生态环境较稳定,而渭河平原的生态环境持续退化。研究结果对区域生态环境保护和农业可持续发展具有重要意义。

关键词: 灌溉农业区, 遥感生态指数, 植被覆盖度, 生态安全

Abstract: Ecological security is an important guarantee for the sustainable development of regional economy and society. We analyzed the change characteristics of fraction vegetation coverage (FVC) and remote sensing ecological index (RSEI) of four irrigated agriculture regions of the Loess Plateau (Yinchuan Plain, Hetao Plain, Fenhe River Valley and Weihe River Plain) based on the remote sensing data from 2000 to 2018. The results showed that the FVC decreased in the study area from 2000 to 2018. The variation trend of FVC differed among the four irrigated agricultural distribution areas. The RSEI of the whole area showed an overall downward trend, the RSEI of Yinchuan Plain (down 0.06) and Weihe River Plain (down 0.07) decreased significantly, and the RSEI of Hetao Plain remained stable. The RSEI of Fenhe River Valley showed an increased trend. The ecological stability of Yinchuan Plain and Fenhe River Valley was relatively low, the ecological environment of Hetao Plain was relatively stable, and the ecological environment of Weihe River Plain continued to degrade. The results were important for regional ecological environment protection and agricultural sustainable development.

Key words: irrigated agricultural distribution area, remote sensing ecological index, fraction vegetation coverage, ecological security