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首页> 外文期刊>Human and ecological risk assessment >Landscape ecological safety assessment and landscape pattern optimization in arid inland river basin: Take Ganzhou District as an example
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Landscape ecological safety assessment and landscape pattern optimization in arid inland river basin: Take Ganzhou District as an example

机译：景观生态安全评估与南岸河流域的生态安全评估与景观模式优化：以赣州区为例

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摘要

Landscape ecological security assessment aims to make a comprehensive evaluation of regional landscape ecological security through the construction of regional ecological security evaluation indicator system. According to the theory of landscape ecology, spatial principal component analysis (SPCA) and GIS techniques, we obtained the distribution of landscape ecological security pattern of Ganzhou District, Gansu province, China. We obtained the ecological sources, corridors, and nodes according to the minimum cumulative resistance (MCR) model to optimize the structure and function of ecological function network. The following results were found: the comprehensive landscape ecological security situation of the research area was on the average. The spatial distribution pattern of landscape ecological security level indicated that the low level of safety were mainly distributed in the Gobi and desert areas in the north, accounting for 19.9% of the study area, while the high safety level was mainly distributed in the northwest and southeast of the Heihe River basin, accounting for 24.8% of the study area. With points, lines, and surfaces being interlaced, a regional ecological network was constructed, which was consisted of six ecological corridors, 14 ecological nodes, a large ecological source area and a plurality of small source areas, and could effectively improve landscape ecological security level of the study area.
机译：景观生态安全评估旨在通过建设区域生态安全评估指标制度来全面评估区域景观生态安全。根据景观生态学理论，空间主成分分析（SPCA）和GIS技术，我们获得了中国甘肃省赣州区景观生态安全模式的分布。根据最小累积电阻（MCR）模型，我们获得了生态源，走廊和节点，以优化生态功能网络的结构和功能。发现以下结果：研究领域的综合景观生态安全局势平均。景观生态安全水平的空间分布格局表明，北方戈壁和沙漠地区的安全性低，占研究区的19.9％，而高安全水平主要分布在西北部和西北部黑河流域东南部，占研究区的24.8％。用点，线条和隔行界面，建造了一个区域生态网络，该网络由六个生态走廊，14个生态节点，大型生态源区和多个小源区域组成，可以有效地改善景观生态安全水平研究区。

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