Landscape pattern analysis of Yinzhou new city zone based on high spatial resolution aerial photos
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摘要: 基于高空间分辨率航空影像，应用Arcgis，Fragstates软件平台，选取适合的景观格局指数定量分析浙江宁波鄞州新城区城市景观格局。结果表明：鄞州新城区景观格局主要有建筑等硬铺装地面、水域、公共绿地、生产防护绿地、农田及生态涵养绿地和道路等6种类型。建筑等硬铺装地面和道路为城市建设用地，占总面积的49.96%，破碎化最为严重；水网密集且均匀分布；道路连接性较好，形成较完整的道路体系；农田及生态涵养用地主要分布在鄞州大道以南的区域，面积较大，景观类型较为单一；公共绿地表现出较高的斑块密度和边缘密度，破碎化比较严重，景观类型复杂。各景观类型斑块大部分以小尺度斑块为主，总体比例达到71.01%。鄞州新城区景观组分较多且分布均匀，在城市化进程中形成了大量的均质景观。图1表5参35Abstract: With urban spatial analysis combined with some metrics，this paper attempts to quantificationally analyze the landscape pattern of Yinzhou new city zone，an important region in the development of Ningbo central district in Zhejiang Province，based on the land use of Gis-datasets derived from 1 ∶ 5 000 high spatial resolution aerial photos of 2009. According to the theory of landscape ecology and the characteristics of study area，the urban landscape was classified into 6 types，namely，hard surface，water，public green，protective greenbelt，agriculture，and road in this paper. Applying the spatial pattern analysis software FRAGSTATS 3.3，this paper includes these following four aspects：（1） urban landscape structure of patch；（2） class-level metrics of landscape types；（3） landscape-level analysis；（4） patch size distribution. The results show that there are numerous and well-proportioned landscape components in Yinzhou new city zone，which has formed the massive isotropic landscape in the progress of urbanization. Land used for construction occupies 49.96%，mainly in the northern region，along north of the Yinzhou Road. Agriculture，with an area of 1 785.51 hm2，occupies 23.9%，mainly along south of the Yinzhou Road. Water network，crowded and distributed evenly，is a typical model with urban features in south of the lower reaches of the Yangze River. The hard surface which has higher landscape fragmentation is complex and is most obvious in human disturbance. Among three kinds of urban green，the public green displays higher patch density with the edge density of 8.22 and 76.65 respectively. This indicates that the public green is quite seriously fragmented and complex；but the agriculture，concentrated in southeast of Yinzhou new city zone，is more unitary，and the patch density and the edge density is lower，with 2.34 and 41.46 respectively. Each type is predominantly the small size patch，taking up 71.01%. The patch distributions at mesoscale level or above are few. The agriculture has a higher mesoscale patch and a bigger scale patch，occupying 35.43% and 30.29% respectively. 73.94% of public green patch is identified as small scale patches with less than 1 hm2 of the area.［Ch，1 fig. 5 tab. 35 ref.］
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Key words:
- landscape ecology /
- high spatial resolution /
- aerial photos /
- landscape pattern /
- Ningbo City
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2012.03.005
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