Construction and optimization of ecological security pattern based on the coupling of ecological-production-living spaces: taking Yangzhou City as an example

doi:10.12302/j.issn.1000-2006.202004045

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2021, Vol. 45 ›› Issue (5): 133-142.doi: 10.12302/j.issn.1000-2006.202004045

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Construction and optimization of ecological security pattern based on the coupling of ecological-production-living spaces: taking Yangzhou City as an example

GUO Tianwei¹(), LU Chunfeng², WANG Junxiao¹, LIU Ruicheng¹, ZHOU Shenglu¹^,^*()

1. School of Geography and Ocean Scinence,Nanjing University,Nanjing 210093,China
2. Department of City and Resources of Environment, Jiangsu Second Normal University, Nanjing 210013,China

Received:2020-04-22 Accepted:2021-04-13 Online:2021-09-30 Published:2021-09-30
Contact: ZHOU Shenglu E-mail:545191184@qq.com;zhousl@nju.edu.cn

Abstract

Abstract:

【Objective】 By considering the interactions among ecology, production and living spaces, this paper provided a new idea for the optimization of ecological security patterns, as well as a decision reference for Yangzhou City to optimize its spatial development pattern under the premise of protecting ecological security.【Method】 This study uses Yangzhou as an example and is based on survey data of land use change at a scale of 1:5 000. This study has taken into consideration, future urban expansion and the impact of production space cushions on the ecological security pattern. From the perspective of good coupling, multi-scenario-based conflict coordination program evaluation and circular gradient analysis method are used to build and optimize regional ecological security patterns.【Result】 The ecological-production-living coupling optimization framework of “Ecological-production-living main function quantification-Multi-scenario basic scheme conflict coordination evaluation-Analysis of sub-region coordination scenario evaluation based on the ecological-production-living rule” was formed. Based on the coordination plan, the results showed that after the optimization of the ecological security pattern network, the area of ecological sources and corridors of Yangzhou City was 2 444.63 km², accounting for 36.85% of the total area. The ecological security pattern network in the research area comprised the baseline function land, buffer function land, and connection function land, and their corresponding area proportions of the whole area were 23.16%, 12.01% and 1.68%, respectively.【Conclusion】 In this study, the ecological-production-living coupling optimization framework could provide new ideas for regional ecological security pattern optimization and effectively guide relevant planning.

Key words: ecological security pattern, ecospace, living space, machine learning, coupled model, coordination plan, Yangzhou City

CLC Number:

X321

GUO Tianwei, LU Chunfeng, WANG Junxiao, LIU Ruicheng, ZHOU Shenglu. Construction and optimization of ecological security pattern based on the coupling of ecological-production-living spaces: taking Yangzhou City as an example[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2021, 45(5): 133-142.

Figures/Tables 9

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主体空间 main space	类别 category	赋分 score
生态主体空间 ecological space	环保部门生态红线I级区∩生态主体空间	4
	环保部门生态红线II级区∩生态主体空间	3
	(江淮生态大走廊规划∪生态廊道)∩ 生态主体空间	2
	生态主体空间独有部分	1
生活主体空间 living space	优化开发区	4
	重点开发区	3
	限制开发区	2
	禁止开发区	1
生产主体空间 production space	评价结果标准化分级	4~1

耦合情景 coupling scene	类型 category	面积/ km² area	占冲突斑块总面积比例/% proportion of total conflict plaque area
生态保护优先 priority scenarios for ecological protection	优先划入	24.37	37.67
	应当划入	19.24	29.76
	建议划入	0.41	0.64
	合计	44.02	68.07
优先发展 priority development scenario	优先划入	5.03	7.77
	应当划入	23.13	35.76
	建议划入	13.71	21.20
	合计	41.87	64.73
融合发展 integrated development scenarios	优先划入	24.36	37.66
	应当划入	3.80	5.88
	建议划入	15.70	24.28
	合计	43.86	67.81

Construction and optimization of ecological security pattern based on the coupling of ecological-production-living spaces: taking Yangzhou City as an example

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