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| DOI：10.13522/j.cnki.ggps.2019479 |
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| Spatiotemporal Variation of Ecological Footprint of Water Resources in the Provinces in the Yellow River Basin |
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ZUO Qiting, JIANG Long, FENG Yakun, DIAO Yixuan
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1. School of Water Conservancy Engineering, Zhengzhou University, Zhengzhou 450001, China; 2. Yellow River Institute for Ecological Protection & Regional Coordination Development, Zhengzhou 450001, China;3. Zhengzhou Key Laboratory of Water Resources and Environment, Zhengzhou 450001, China
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| Abstract: |
| 【Objective】 Water resource footprint is an important indicator of healthy and sustainable use of water resources in a region. This paper analyzes the spatiotemporal variation of ecological footprint of water resources in the provinces in the Yellow River basin.【Method】 The ecological footprint of the water resources was calculated using an ecological footprint model, and it was then analyzed using the Gini-coefficient and the logarithm average Divisia index. 【Result】There was a significant spatial difference in ecological footprint of water resources per capita between the nine provinces, with the contribution of usage of different water resources to the footprint ranked in industrial water usage > domestic water usage > ecological water usage. In all provinces but Sichuan, Shaanxi and Qinghai, the ecology of water resources is unsustainable, and the balance between the footprint and GDP, population, total water resources and cultivated land is poor. The main factors impacting the footprint are technology and economy, with the footprint inversely proportional to the former while proportional to the latter.【Conclusion】 Overall, the ecological status of water resources in all provinces in the Yellow River basin is poor. |
| Key words: ecological footprint of water resources; Yellow River basin; ecological footprint model; Gini coefficient; Logarithmic Mean Divisia Index |
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