Land Ecological Security Early Warning Measure and Spatial-Temporal Pattern Evolution in Fenhe River Basin During 2006-2018

Su Yingqing; Liu Geng; Zhao Jingbo; Guo Ligang; Lin Fei; Niu Junjie

doi:10.13961/j.cnki.stbctb.2021.01.021

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Land Ecological Security Early Warning Measure and Spatial-Temporal Pattern Evolution in Fenhe River Basin During 2006-2018

- Land Ecological Security Early Warning Measure and Spatial-Temporal Pattern Evolution in Fenhe River Basin During 2006-2018
- Bulletin of Soiland Water Conservation Vol. 41, Issue 1, Pages: 144-151(2021)
- 作者机构：
  
  1. 太原师范学院汾河流域科学发展研究中心,山西,晋中,030619
  2. 陕西师范大学地理科学与旅游学院,陕西,西安,710119
  3. 太原师范学院管理系,山西,晋中,030619
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2021.01.021
  CLC： X171
- Published：2021
- 稿件说明：
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Su Yingqing, Liu Geng, Zhao Jingbo, et al. Land Ecological Security Early Warning Measure and Spatial-Temporal Pattern Evolution in Fenhe River Basin During 2006-2018[J]. Bulletin of Soiland Water Conservation, 2021, 41(1): 144-151.
DOI：

Su Yingqing, Liu Geng, Zhao Jingbo, et al. Land Ecological Security Early Warning Measure and Spatial-Temporal Pattern Evolution in Fenhe River Basin During 2006-2018[J]. Bulletin of Soiland Water Conservation, 2021, 41(1): 144-151. DOI： 10.13961/j.cnki.stbctb.2021.01.021.

摘要

[目的] 开展汾河流域土地生态安全预警研究，为流域土地资源科学合理利用及可持续发展提供参考。[方法] 采用乘算模型、空间自相关及地理探测器方法分析2006-2018年流域土地生态安全警度的时空格局演化特征及主导因子。[结果] ①2006-2018年汾河流域土地生态安全警度演变趋势为向上开口抛物线的曲线特征，且由“较不安全”向“临界安全”状态转变。②空间上土地生态安全警度呈现“大集聚，小分散”的特征，并经历“下降-提高”的过程。③警度空间自相关由“正相关-负相关-正相关”转变，与流域土地生态安全警度时空格局分布基本一致。④影响流域土地生态安全的主导因子为经济发展水平、环境保护投入与治理力度、土地利用效率。[结论] 未来应优化汾河流域生产、生活、生态空间布局，建立流域生态补偿机制，加大环境保护与科研投入力度促进流域的生态安全水平的提高。

Abstract

[Objective] The early warning on the ecological security of watershed land in Fenhe River was studied to provide references for the scientific and rational utilization and sustainable development of watershed land resources.[Methods] The spatial and temporal pattern evolution characteristics and leading factors of land ecological security alertness in the basin from 2006 to 2018 were analyzed using a multiplier model

spatial autocorrelation

and a geographic detector.[Results] ① From 2006 to 2018

the evolution trend of the land ecological security alarm degree in the Fenhe River basin was a parabolic curve with upward opening

and it changed from the "less safe" to the "critically safe" state. ② Spatially

the ecological security alert degree of land was characterized by "large agglomeration and small dispersion" and underwent the process of "decline to increase." ③ The change in spatial autocorrelation of alertness experienced the process of "positive-correlation-negative-correlation-positive correlation

" which was basically consistent with the spatial and temporal distribution of the ecological security alertness of the watershed land. ④ The leading factors affecting the land ecological security of the river basin for many years were the level of economic development

investment and governance of environmental protection

and land use efficiency.[Conclusion] In the future

the layout of production

living

and ecological space in the Fenhe River basin should be optimized. The ecological compensation mechanism of the basin should be established. Investment in environmental protection and scientific research should be increased to promote the ecological security level of the basin.

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