A study on eco-environmental dynamics, causes, and zoning over Liaohe River basin based on remote sensing ecological index (RSEI)

Luo Qing; Zhang Jing; Bao Yajing; Li Zhenghai; Xu Yinlong

doi:10.13961/j.cnki.stbctb.2025.02.036

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A study on eco-environmental dynamics, causes, and zoning over Liaohe River basin based on remote sensing ecological index (RSEI)

- A study on eco-environmental dynamics, causes, and zoning over Liaohe River basin based on remote sensing ecological index (RSEI)
- Bulletin of Soiland Water Conservation Vol. 45, Issue 2, Pages: 360-370(2025)
- 作者机构：
  
  大连民族大学环境与资源学院,辽宁,大连,116600
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2025.02.036
  CLC： X321
- Online First：16 May 2025，
  
  Published：2025
- 稿件说明：
移动端阅览
Luo Qing, Zhang Jing, Bao Yajing, et al. A study on eco-environmental dynamics, causes, and zoning over Liaohe River basin based on remote sensing ecological index (RSEI)[J]. Bulletin of Soiland Water Conservation, 2025, 45(2): 360-370.
DOI：

Luo Qing, Zhang Jing, Bao Yajing, et al. A study on eco-environmental dynamics, causes, and zoning over Liaohe River basin based on remote sensing ecological index (RSEI)[J]. Bulletin of Soiland Water Conservation, 2025, 45(2): 360-370. DOI： 10.13961/j.cnki.stbctb.2025.02.036.

摘要

[目的] 揭示辽河流域生态环境的时空动态变化特征及其驱动机制，并基于此构建生态管理分区框架，为区域生态环境保护和可持续发展提供科学支持。[方法] 基于2000至2022年的遥感生态指数(remote sensing ecological index，RSEI)分析辽河流域生态环境质量的时空动态变化趋势，识别其关键驱动因子，并结合RSEI分布格局、变化趋势及驱动因子，构建多维度的生态分区框架，完成辽河流域生态管理分区。[结果] ①辽河流域生态环境质量呈逐年改善趋势，空间上表现为“中部差、东西优”的空间分布格局。②降水是RSEI空间分异的主导因素，其次为土地利用、温度、高程和坡度。③基于分区结果，全流域可划分为生态核心保护区、生态优化区、生态监测区、生态修复区和生态重点治理区，生态核心保护区集中于流域东部，生态重点治理区则位于流域中部。[结论] 2000—2022年辽河流域的生态环境质量不断改善，降水和土地利用是其主要驱动因子，未来需加强对生态核心保护区的保护力度，并将更多资源投入到生态重点治理区。

Abstract

[Objective] The spatiotemporal dynamics and driving mechanisms of the eco-environment in the Liaohe River basin were revealed

and an ecological management zoning framework was established

so as to provide scientific support for regional ecological environment protection and sustainable development. [Methods] Based on the Remote Sensing Ecological Index (RSEI) from 2000 to 2022

the spatiotemporal dynamics in eco-environment quality from 2000 to 2022 were analyzed

and its key driving factors were identified. Combined with the spatial distribution pattern

change trend and driving factors of RSEI

a multi-dimensional ecological zoning framework was constructed

and the ecological management zoning of Liaohe River Basin was completed. [Results] ① The eco-environment quality in the Liaohe River Basin improved annually

with a spatial pattern of “poor in the middle

excellent in the east and west.” ② Precipitation was the primary driving factor of RSEI spatial variation

followed by land use

temperature

elevation

and slope. ③ Based on the zoning results

the entire basin can be divided into core ecological protection areas

ecological optimization areas

ecological monitoring areas

ecological restoration areas

and key ecological management areas. Core ecological protection areas are concentrated in the eastern basin

while key ecological management areas are located in the central basin. [Conclusion] From 2000 to 2022

the eco-environment quality of the Liaohe River basin continuously improved

with precipitation and land use being primary driving factors. In the future

prioritized conservation measures are needed to strengthen the protection of core ecological protection areas and more resources should be allocated to key ecological management areas.

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references

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