Evidence map›Paper›PMID 33546495›Full record

ArticleInternational journal of environmental research and public health2021

Ecological Network Optimization in Urban Central District Based on Complex Network Theory: A Case Study with the Urban Central District of Harbin.

Shuang Song, Dawei Xu, Shanshan Hu, Mengxi Shi

Abstract read
In one paragraph

Article in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Shuang SongCollege of Landscape Architecture, Northeast Forestry University, Harbin 150000, China.ORCID 0000-0003-1993-9440
Dawei XuCollege of Landscape Architecture, Northeast Forestry University, Harbin 150000, China.
Shanshan HuCollege of Landscape Architecture, Northeast Forestry University, Harbin 150000, China.
Mengxi ShiCollege of Landscape Architecture, Northeast Forestry University, Harbin 150000, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Habitat destruction and declining ecosystem service levels caused by urban expansion have led to increased ecological risks in cities, and ecological network optimization has become the main way to resolve this contradiction. Here, we used landscape patterns, meteorological and hydrological data as data sources, applied the complex network theory, landscape ecology, and spatial analysis technology, a quantitative analysis of the current state of landscape pattern characteristics in the central district of Harbin was conducted. The minimum cumulative resistance was used to extract the ecological network of the study area. Optimized the ecological network by edge-adding of the complex network theory, compared the optimizing effects of different edge-adding strategies by using robustness analysis, and put forward an effective way to optimize the ecological network of the study area. The results demonstrate that: The ecological patches of Daowai, Xiangfang, Nangang, and other old districts in the study area are small in size, fewer in number, strongly fragmented, with a single external morphology, and high internal porosity. While the ecological patches in the new districts of Songbei, Hulan, and Acheng have a relatively good foundation. And ecological network connectivity in the study area is generally poor, the ecological corridors are relatively sparse and scattered, the connections between various ecological sources of the corridors are not close. Comparing different edge-adding strategies of complex network theory, the low-degree-first strategy has the most outstanding performance in the robustness test. The low-degree-first strategy was used to optimize the ecological network of the study area, 43 ecological corridors are added. After the optimization, the large and the small ecological corridors are evenly distributed to form a complete network, the optimized ecological network will be significantly more connected, resilient, and resistant to interference, the ecological flow transmission will be more efficient.

Indexed as

Conservation of Natural ResourcesEcosystemChinaCitiesEcologyHydrologySpatial Analysiscomplex networkecological networkedge-adding optimizationHarbin central districtlandscape pattern characteristics

Identifiers

PMID33546495
PMCPMC7913767

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