| 昆明市五华区城市绿地景观空间特征分析研究 |
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| 引用本文： | 杜松翠,魏开云.昆明市五华区城市绿地景观空间特征分析研究[J].安徽农业科学,2011,39(25):15550-15553. |
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| 作者姓名： | 杜松翠 魏开云 |
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| 作者单位： | 西南林业大学园林学院,云南昆明,650224 |
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| 摘 要： | 借助昆明市1∶20 000卫星影像图以及10 m分辨率的卫星遥感图像,以五华区绿化主管部门统计的绿化数据和实地调查收集的数据为基础。运用景观生态学原理和方法,选取城市绿地斑块平均面积、景观破碎度、景观连接度3个能够反映景观空间特征的指标参数,对昆明市五华区主城区城市绿地景观空间特征进行分析研究。通过对3个指标结果进行分析,得出五华区主城区城市绿地景观空间特征存在城市绿地以小型斑块为主,斑块平均面积较小;城市绿地斑块小而碎,绿地景观破碎度较大;绿地斑块间景观连接度较弱,生态廊道宽度较窄,不能充分发挥景观廊道的生态效益等问题。最后针对这些问题提出优化的意见和建议,为优化和创造五华区优良的城市绿地景观空间特征及构建生态安全的景观生态格局提供参考依据和理论指导。
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| 关 键 词： | 绿地斑块平均面积 景观破碎度 景观连接度 景观空间特征 昆明市五华区 |
Research on Analysis of Landscape Spatial Characteristic of Urban Green Land in Wuhua District of Kunming City |
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| Institution: | DU Song-cui et al(College of Landscape Architecture,Southeast Forestry University,Kunming,Yunnan 650224) |
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| Abstract: | With the help of 1∶20 000 satellite image of Kunming City and its satellite remote sensing image with a resolution ratio 10 m,based on statistic data from Greening Department of Wuhua District and data collected through field study,by making use of landscape ecological theory and methods,the paper had selected three indexes reflecting landscape spatial characteristic including average patch area,landscape fragmentation and landscape connectivity,to analyze landscape spatial characteristic of urban green land.And then it obtained that urban green land of Wuhua District was dominated by small patches,and patches' average area was small;urban green patches were small and fragmented,and landscape fragmentation was high;landscape connectivity was weak and ecological corridor was narrow,failing to bring ecological effect of landscape corridor into full display.Finally,in view of these problems,it had proposed suggestions for optimization,so as to provide reference and theoretical guidance for optimizing and creating excellent landscape spatial characteristic of urban green land in Wuhua District and constructing landscape pattern of ecological security. |
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| Keywords: | Average area of green patches Landscape fragmentation Landscape connectivity Landscape spatial characteristic Wuhua District of Kunming City |
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