Improvement of Remote Sensing Ecological Index in Karst Mountainous Areas—Taking Chengbi River Basin as an Example

Sun Guikai; Wang Guoshuai; Wei Yixiong; Zhao Rongna; Mo Chongxun; Yang Yunchuan

doi:10.13961/j.cnki.stbctb.2021.02.031

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Improvement of Remote Sensing Ecological Index in Karst Mountainous Areas—Taking Chengbi River Basin as an Example

- Improvement of Remote Sensing Ecological Index in Karst Mountainous Areas—Taking Chengbi River Basin as an Example
- Bulletin of Soiland Water Conservation Vol. 41, Issue 2, Pages: 230-239(2021)
- 作者机构：
  
  1. 广西大学土木建筑工程学院,广西,南宁,530004
  2. 工程防灾与结构安全教育部重点实验室,广西,南宁,530004
  3. 广西防灾减灾与工程安全重点实验室,广西,南宁,530004
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2021.02.031
  CLC： X87;X171.1
- Published：2021
- 稿件说明：
移动端阅览
Sun Guikai, Wang Guoshuai, Wei Yixiong, et al. Improvement of Remote Sensing Ecological Index in Karst Mountainous Areas—Taking Chengbi River Basin as an Example[J]. Bulletin of Soiland Water Conservation, 2021, 41(2): 230-239.
DOI：

Sun Guikai, Wang Guoshuai, Wei Yixiong, et al. Improvement of Remote Sensing Ecological Index in Karst Mountainous Areas—Taking Chengbi River Basin as an Example[J]. Bulletin of Soiland Water Conservation, 2021, 41(2): 230-239. DOI： 10.13961/j.cnki.stbctb.2021.02.031.

摘要

[目的] 研究澄碧河流域1988—2019年生态环境的时空演变特征及其变化原因，旨在快速、科学地评价岩溶区生态环境质量变化，为岩溶区生态环境的保护、治理以及发展规划提供科学依据。[方法] 基于Landsat遥感影像，引入归一化山地植被指数（NDMVI），改进综合生态评价指数（CEEI）模型，对西南典型岩溶区澄碧河流域1988—2019年生态环境质量进行动态监测，利用空间自相关方法定量分析流域生态环境质量的空间分布特征。[结果] ①CEEI具有一定的科学性，并能较好反映研究区生态环境质量情况及时空分异特征；②1988—2019年研究区生态环境质量处于中上水平，整体呈上升趋势，低值区主要分布在流域北部岩溶峰林区与库区周边；③研究区生态环境质量具有一定的空间正相关关系，但聚集性逐渐减弱。[结论] 改进的CEEI模型能够较好地反映澄碧河流域生态环境质量。澄碧河流域CEEI均值总体呈上升趋势，生态环境质量得到改善。

Abstract

[Objective] The spatio-temporal evolution characteristics of the ecological environment in Chengbi River basin from 1988 to 2019

and the causes of its change were studied

in order to provide scientific basis for the protection

management and development planning of the ecological environment in karst area

and scientifically evaluate the change of ecological environment quality in karst area.[Methods] Based on Landsat images

the normalized difference mountain vegetation index (NDMVI) was introduced

and the comprehensive ecological evaluation index (CEEI) model was improved. The ecological environment quality of a typical karst basin in Southwest China

the Chengbi River basin was dynamically monitored from 1988 to 2019. The spatial distribution characteristics of the ecological environment quality in the basin were quantitatively analyzed using spatial autocorrelation methods

and the causes of ecological environment quality changes in the study area were analyzed.[Results] ① CEEI could scientifically reflect the ecological environment quality of the study area. ② The quality of the ecological environment in the research area from 1988 to 2019 was at the middle and upper middle level

and the overall trend was increasing. The low value areas were mainly distributed in the karst peak forest area and surrounding the reservoir area in the northern part of the basin. ③ The ecological environment quality of the study area had a certain spatial positive correlation

but the aggregation gradually weakened. ④ Vigorously carrying out the construction of ecological civilization and the management of stone desertification had greatly promoted the improvement of ecological environment quality in karst areas.[Conclusion] The improved CEEI model can better reflect the ecological environment quality of Chengbi River basin

the average CEEI of Chengbi River basin is on the rise

and the ecological environment quality has been improved.

关键词

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references

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