The integrated recognition of the source area of the urban ecological security pattern in Shenzhen

Jiansheng, 吴健生 Wu; Liqing, 张理卿 Zhang; Jian, 彭建 Peng; Zhe, 冯喆 Feng; Hongmeng, 刘洪萌 Liu; Shengbin, 赫胜彬 He

doi:10.5846/stxb201208081123

Cited by 51 publications

(11 citation statements)

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“…The second method is usually based on the evaluation of ecological sensitivity, ecological suitability, ecological risk, and ecological importance. The results are reflected on spatial locations with the help of Geographic Information System (GIS) technology [21,22,23]. Currently, the most common perspective is the ecological importance evaluation based on ecological services [10].…”

Section: Introductionmentioning

confidence: 99%

The Construction and Optimization of Ecological Security Pattern in the Harbin-Changchun Urban Agglomeration, China

Guo

Liu

et al. 2019

IJERPH

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Urban agglomerations have become a new geographical unit in China, breaking the administrative fortresses between cities, which means that the population and economic activities between cities will become more intensive in the future. Constructing and optimizing the ecological security pattern of urban agglomerations is important for promoting harmonious social-economic development and ecological protection. Using the Harbin-Changchun urban agglomeration as a case study, we have identified ecological sources based on the evaluation of ecosystem functions. Based on the resistance surface modified by nighttime light (NTL) data, the potential ecological corridors were identified using the least-cost path method, and key ecological corridors were extracted using the gravity model. By combining 15 ecological sources, 119 corridors, 3 buffer zones, and 77 ecological nodes, the ecological security pattern (ESP) was constructed. The main land-use types composed of ecological sources and corridors are forest land, cultivated land, grassland, and water areas. Some ecological sources are occupied by construction, while unused land has the potential for ecological development. The ecological corridors in the central region are distributed circularly and extend to southeast side in the form of tree branches with the Songhua River as the central axis. Finally, this study proposes an optimizing pattern with "four belts, four zones, one axis, nine corridors, ten clusters and multi-centers" to provide decision makers with spatial strategies with respect to the conflicts between urban development and ecological protection during rapid urbanization.

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Section: Introductionmentioning

confidence: 99%

The Construction and Optimization of Ecological Security Pattern in the Harbin-Changchun Urban Agglomeration, China

Guo

Liu

et al. 2019

IJERPH

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“…The current framework of the built landscape security pattern as the biodiversity and ecological constraint factors for urban expansion has some limitations as well. Under that framework, studies usually tend to pay more attention to the natural attributes of habitat but ignore the relationship between the habitat and surrounding environment [36]. Furthermore, studies usual build the block area for urban expansion and identify its value based on some coarse and subjective judgments.…”

Section: Introductionmentioning

confidence: 99%

Biodiversity constraint indicator establishment and its optimization for urban growth: framework and application

Sun

et al. 2019

Environ. Res. Lett.

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Urbanization causes tremendous pressure on biodiversity and ecosystems at the global scale. China is among the countries undergoing the fastest urban expansion. For a long time, ecological environment protection has not been a priority in China's urban planning process. Current urban growth optimization research has some limitations regarding the selection of more scientific ecological constraint indicators and the interaction between urban expansion and ecological factors. This paper at first aimed to establish a reasonable comprehensive biodiversity constraint indicator based on the indicators of net primary productivity, habitat connectivity and habitat quality, and then conducted a case study in Beijing and compared biodiversity loss and urban growth patterns under different developing situations. The integrated valuation of ecosystem services and trade-offs model and GISrelated methods were used to obtain biodiversity and ecological spatial distribution layers. Then an ecological priority-oriented urban growth simulation method was proposed to search for minimum biodiversity loss. The results showed that the important biodiversity security areas were mostly distributed in the western part of the study area and that the ecological degradation in 2000 had a radial pattern and was well in line with the urban construction and ring road distribution patterns. Meanwhile, biodiversity loss with the biodiversity constraint was much less than actual urban growth in 2000-2010. Under the guidance of ecological optimization, urban growth in the research results reflects decentralized and multi-center spatial development characteristics. This type of urban growth not only provides a new model for breaking the inertia of urban sprawl but also proposes 'biodiversity security' as an applicable regulatory tool for urban planning and space governance reforming.

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“…The change of GI connectivity with and without the integration of a mining brownfield into GI can reflect the importance of each mining brownfield patch in maintaining the connectivity of the GI network. The possible connectivity index (PC) was used to characterize the GI connectivity, and the patch importance of each mining brownfield to maintain the GI connectivity was calculated as follows [40]:…”

Section: Pgi=∑mentioning

confidence: 99%

Changing Coal Mining Brownfields into Green Infrastructure Based on Ecological Potential Assessment in Xuzhou, Eastern China

2019

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It is widely recognized that brownfield regeneration to green space is a sustainable form of urban development. However, it is essential to choose those brownfields that have the greatest potential to be integrated into urban green infrastructure (GI). This paper addresses how to quantitatively assess the ecological potential of coal mining brownfields at the city level, and looks at how these brownfields can be best adapted to enhance the GI system. Taking Xuzhou as an example, an ecological potential assessment method for brownfield regeneration to green space is established considering both its ecological importance and the capacity of maintaining GI connectivity. The results show that more than half of the coal mining brownfields have relatively higher ecological importance values, and only four patches play an important role in maintaining GI connectivity. The final ecological potential values of brownfield regeneration to green space are obtained by overlaying the values of ecological importance and the capacity values of maintaining GI connectivity. Then, all the brownfields are divided into five groups according to their ecological potential values, which are significantly different in each group. Around 51.35% of the brownfields have a high or very high potential for restoration to GI, which are distributed in the southeastern part of the western mining area and the central part of the eastern mining area. The presented method can assist reclamation scientists and urban planners in decision making based on quantitative analysis.

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The integrated recognition of the source area of the urban ecological security pattern in Shenzhen

Cited by 51 publications

References 0 publications

The Construction and Optimization of Ecological Security Pattern in the Harbin-Changchun Urban Agglomeration, China

The Construction and Optimization of Ecological Security Pattern in the Harbin-Changchun Urban Agglomeration, China

Biodiversity constraint indicator establishment and its optimization for urban growth: framework and application

Changing Coal Mining Brownfields into Green Infrastructure Based on Ecological Potential Assessment in Xuzhou, Eastern China

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