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中国沙漠 ›› 2023, Vol. 43 ›› Issue (5): 232-240.DOI: 10.7522/j.issn.1000-694X.2023.00083

• • 上一篇    

河西地区生态敏感性演变格局及分区治理

邓晓红1(), 宋玉琳2(), 李宗省3, 赵婷婷3,4   

  1. 1.兰州大学,县域经济发展研究院/乡村振兴战略研究院,甘肃 兰州 730000
    2.兰州大学,经济学院,甘肃 兰州 730000
    3.中国科学院西北生态环境资源研究院 甘肃省祁连山生态环境研究中心/内陆河流域生态水文重点实验室,甘肃 兰州 730000
    4.中国科学院大学,北京 100049
  • 收稿日期:2023-06-27 修回日期:2023-09-11 出版日期:2023-09-20 发布日期:2023-09-27
  • 通讯作者: 宋玉琳
  • 作者简介:宋玉琳(E-mail: songyl21@lzu.edu.cn
    邓晓红(1985—),女,湖南沅陵人,副研究员,主要从事生态经济方向研究。E-mail: dengxg@lzu.edu.cn
  • 基金资助:
    国家自然科学基金项目(42271288);科技部第二次青藏高原科学考察研究项目(2019QZKK0405);甘肃省自然科学基金项目(21JR7RA505)

Evolution pattern of terrestrial ecological sensitivity in the Hexi region and its zoning governance

Xiaohong Deng1(), Yulin Song2(), Zongxing Li3, Tingting Zhao3,4   

  1. 1.County Economic Development Research Institute / Rural Revitalization Strategy Research Institute //, Lanzhou University,Lanzhou 730000,China
    2.School of Economics, Lanzhou University,Lanzhou 730000,China
    3.Gansu Qilian Mountain Ecological Environment Research Center / Key Laboratory of Inland River Basin Ecological Hydrology,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    4.University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2023-06-27 Revised:2023-09-11 Online:2023-09-20 Published:2023-09-27
  • Contact: Yulin Song

摘要:

生态敏感性是评估区域生态环境问题和实施生态功能区划的重要指标,可作为区域生态修复与分区治理的重要依据。以河西地区为例,首先针对沙漠化、水土流失、盐渍化、生境质量等生态问题,耦合空间距离指数模型构建生态敏感性评价体系,其次,运用格网编码法对河西地区生态敏感性波动强度及波动趋势进行分析,并结合地理探测器探明生态敏感性演变进程中主要驱动因子;最后,基于生态敏感性的时空演变特征进行生态治理分区。结果表明:(1)河西地区生态敏感性具有明显空间分异性,呈现西北高东南低的分布状况;(2)生态敏感性稳定区占主导地位,面积占比为46.54%;(3)生境质量敏感性对河西地区生态敏感性解释力最强;(4)河西地区可划分为优化治理区、管控治理区、长效治理区、综合治理区4个生态分区,分区面积占比分别为32.08%、27.80%、11.30%、28.82%,对于不同分区特征建议实施不同的生态治理策略。

关键词: 生态敏感性, 分区治理, 空间距离模型, 河西地区

Abstract:

Ecological sensitivity is an important indicator for evaluating regional ecological environmental issues and implementing ecological function zoning, which can provide important basis for regional ecological restoration and optimization management. This paper takes Hexi region as an example. First, aiming at ecological problems such as Desertification, water and soil loss, salinization, and habitat quality, the spatial distance index model is coupled to build an evaluation system of terrestrial ecological sensitivity. Secondly, the grid coding method is used to analyze the fluctuation intensity and trend of terrestrial ecological sensitivity in Hexi region, and the main driving factors in the evolution process of terrestrial ecological sensitivity are identified with geographical detectors; Finally, ecological governance zoning is carried out based on the spatiotemporal evolution characteristics of terrestrial ecological sensitivity. The results indicate that the sensitivity of terrestrial ecology in the Hexi region has significant spatial differentiation, showing a distribution pattern of high in the northwest and low in the southeast; The ecologically sensitive and stable area dominates, accounting for 46.54% of the total area; The sensitivity of habitat quality has the strongest explanatory power on the sensitivity of terrestrial ecology in the Hexi region; Based on the above characteristics, the Hexi region can be divided into four ecological zones: optimized governance zone, controlled governance zone, long-term governance zone, and comprehensive governance zone. The proportion of the zone area is 32.08%, 27.80%, 11.30%, and 28.82%, respectively. It is recommended to implement different ecological governance strategies for different zone characteristics.

Key words: ecological sensitivity, zone governance, spatial distance model, Hexi region

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