A SDGs-oriented evaluation of the ecological sustainability of international horticultural exposition sites in Chengdu, China

Author:

Huang Biao1,Yang Haolin2,Wang Ruoyu2,Meng Yufei1,Feng Shi3,Li Mucong4,Hu Yonghong3,Peng Hongming5,Shang Kankan3,Jiang Zehui6

Affiliation:

1. International Centre for Bamboo and Rattan, China

2. College of Landscape Architecture, Northeast Forestry University

3. Shanghai Chenshan Botanical Garden

4. Beijing Forestry University

5. China Flower Association

6. Key Laboratory of National Forestry and Grassland Administration/Beijing for Bamboo and Rattan Science and Technology

Abstract

Abstract

This study uses AHP-entropy weight methodology and a spatial econometric regression model to evaluate the ecological sustainability and its changes between the current situation and the planning scenario at the 2024 Chengdu International Horticultural Exposition in China. The results reveal that the low and highest sustainability levels decreased, while medium levels increased to 34.04 hm2. Converting village settlements, wastelands, and farmland into exhibition gardens and water bodies will increase medium-level ecological sustainability by improving rain and flood security and reducing flood disaster risk. Integrated Service areas will have more impervious surfaces as the site develops. Some forest destruction, decreased vegetation coverage, three-dimensional green volume, and vegetation carbon stock will result. It will lower the highest ecological sustainability. The regressive correlation between ecological sustainability level and quantitative indicators was relatively high, ranging from 0.5875 to 0.7148. It will provide policymakers with references and guidance for sustainable development mega-events.

Publisher

Research Square Platform LLC

Reference58 articles.

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