构建区域生态安全格局对区域的可持续发展有重要的意义，肃州区位于河西走廊中西部，生态环境脆弱，水资源短缺，生态环境建设与保护形势依然严峻，通过构建区域生态安全格局实现可持续发展尤为重要。通过运用定性、定量相结合的方法分析肃州区的景观格局和景观安全格局。最后，运用系统耦合和景观生态学尺度变化的原理和方法，结合肃州区特点，构建肃州区区域生态安全格局。随着尺度的逐渐变大，区域生态安全格局包括生态资源系统耦合、自然—社会系统耦合、农业生态系统耦合、景观安全格局耦合和生态地理区域耦合5个耦合模式。
Abstract
The construction of a regional ecological security pattern has important significance in regional sustainable development. Suzhou district is located in the midwest of Hexi Corridor, with fragile ecological environment and shortage of water resources, the situation of ecological environment construction and protection are severe. So, it is particularly important to realize the sustainable development through the construction of regional ecological security pattern. In this paper, we analyzed the landscape pattern and landscape security pattern of Suzhou district through the combination of qualitative and quantitative methods. Then, the system coupling and the principle and method of landscape ecology scale changes were used to build the Suzhou regional ecological security pattern. As the scale increases gradually, five kinds of coupling models are included in regional ecological security pattern, they are the ecological resources system coupling, the natural-social system coupling, the coupling of agricultural ecosystem, the landscape security pattern of coupling and the coupling ecological geographic area.
关键词
区域生态安全格局；肃州区；景观格局；景观安全格局；系统耦合
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Key words
regional ecological security pattern; Suzhou State; landscape pattern; the landscape security pattern; the system coupling
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