YANG Yuanqin,REN Ping,HONG Buting.Development and Utilization of Gentle-Slope Hilly Land Based on Ecological Security Pattern Theory of Three Gores Reservoir Area[J].Research of Soil and Water Conservation,2019,26(03):305-310,317.
基于生态安全格局的三峡库区腹地低丘缓坡土地开发利用
- Title:
- Development and Utilization of Gentle-Slope Hilly Land Based on Ecological Security Pattern Theory of Three Gores Reservoir Area
- Keywords:
- gentle-slope hilly; ecological security pattern; 1 and resources development; minimum cumulative resistance model; Three Gores Reservoir Area
- 分类号:
- F301.23
- 摘要:
- 对低丘缓坡土地资源的合理开发利用进行研究，以期为研究区缓解用地紧张、优化区域土地资源配置提供参考依据。以三峡库区腹地的5县为研究区，首先对低丘缓坡范围进行了界定，然后基于ArcGIS 10.1软件，对研究区生态敏感性和生态系统服务功能重要性进行了评价，基于评价结果，提取出生态源地，接着应用最小累计阻力模型构建研究区生态安全格局，把生态安全格局空间分布图与低丘缓坡土地资源空间分布图进行了叠加分析。结果表明：研究区低丘缓坡面积共计3 930.90 km2，禁止开发型、限制开发型、适度开发型和优先开发型，其面积分别为1 182.02 km2，1 775.19 km2，835.71 km2，137.98 km2，研究区低丘缓坡土地资源大部分属于禁止开发型与限制开发型，适宜于开发利用的低丘缓坡土地资源面积较小；对4种开发利用类型特征进行了分析，提出适宜了相应的开发利用建议。基于生态安全格局的研究方法，有利于促进研究区低丘缓坡土地资源的合理开发利用，有利于生态环境的保护。
- Abstract:
- Research on the development and utilization of low-slope hilly land resources was carried out in order to provide reference for alleviating land shortage and optimizing regional land resource allocation in the study area. Taking the Three Gorges reservoir area as the research area, we firstly defined the scope of low-slope hilly land resources, and then evaluated the ecological sensitivity and the importance of ecosystem service function based on the ArcGIS 10.1 platform. Based on the evaluation results, the ecological source was extracted. Then the minimum accumulated resistance model was used to construct the ecological security pattern in the study area. The ecological security pattern was superposed with the spatial distribution map of gentle-slope hilly land resources. Area of gentle-slope hilly land resources was 3 930.90 km2.There were four land development types:prohibited, limited,moderate and priority developments,their areas were 1 182.02 km2,1 775.19 km2,835.71 km2 and 137.98 km2, respectively. Most of the gentle-slope hills were prohibited and limited developments, and the area suitable for human development was small. The features of each development type were carried out, and corresponding development and utilization suggestions were put forward.The research method based on the ecological security pattern is conducive to promoting the rational development in the study area, which is conducive to the protection of the ecological environment.
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备注/Memo
收稿日期:2018-06-19;改回日期:2018-07-17。
基金项目:四川省教育厅科研项目（18ZA0400），基于MCR模型的农村居民点用地生态适宜性评价及空间布局优化研究
作者简介:杨远琴(1992-),女,四川遂宁人,硕士,研究方向:土地利用管理与评价。E-mail:1475310907@qq.com
通讯作者:任平(1978-),男,湖北荆门人,教授,博士,研究方向:国土资源管理与生态环境效应研究。E-mail:pren121680@126.com