水资源利用效率与科技创新水平的关系——以长江流域为例

IF 0.9 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES
Guangming Yang, Qingqing Gui, Junyue Liu, Fengtai Zhang, Siyi Cheng
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引用次数: 0

摘要

长江流域水资源利用效率(WUE)与科技创新水平(STI)密切相关,了解二者关系有助于提高水资源利用效率,促进当地经济增长和节约用水。本研究以2009 - 2019年长江流域19个省区为研究对象,采用向量自回归(VAR)模型定量评价水利用效率与科技创新两个子系统耦合协调度(CCD)的时空演化。结果表明:(1)研究期间,长江流域水利用效率和水传播效率均呈上升趋势,但水传播效率明显滞后于水利用效率;(2)两个子系统的CCD总体呈上升趋势,各省的CCD均有不同程度的改善,但大部分地区未进入高质量的协调阶段;(3)两个系统的CCD在空间相关格局中表现出明显的正空间自相关,仅存在高-高(H-H)城市化区和低-低(L-L)城市化区两种类型;(4)科技创新指数对水利用效率的影响响应不明显,而水利用效率对科技创新指数的响应较大,二者均高度依赖于自身。优化二者互动机制应成为未来长江流域高质量发展的首要重点。研究结果为政府提高水资源利用效率,促进区域可持续发展提供了实证依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Relationship between Water Resources Use Efficiency and Scientific and Technological Innovation Level: Case Study of Yangtze River Basin in China
The Yangtze River Basin's water resource utilization efficiency (WUE) and scientific and technological innovation level (STI) are closely connected, and the comprehension of these relationships will help to improve WUE and promote local economic growth and conservation of water. This study uses 19 provinces and regions along the Yangtze River's mainstream from 2009 to 2019 as its research objects and uses a Vector Auto Regression (VAR) model to quantitatively evaluate the spatiotemporal evolution of the coupling coordination degree (CCD) between the two subsystems of WUE and STI. The findings show that: (1) Both the WUE and STI in the Yangtze River Basin showed an upward trend during the study period, but the STI effectively lagged behind the WUE; (2) The CCD of the two subsystems generally showed an upward trend, and the CCD of each province was improved to varying degrees, but the majority of regions did not develop a high-quality coordination stage; (3) The CCD of the two systems displayed apparent positive spatial autocorrelation in the spatial correlation pattern, and there were only two types: high-high (H-H) urbanization areas and low-low (L-L) urbanization areas; (4) The STI showed no obvious response to the impact of the WUE, while the WUE responded greatly to the STI, and both of them were highly dependent on themselves. Optimizing their interaction mechanisms should be the primary focus of high-quality development in the basin of the Yangtze River in the future. These results give the government an empirical basis to enhance the WUE and promote regional sustainable development.
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来源期刊
CiteScore
2.30
自引率
25.00%
发文量
42
审稿时长
12-24 weeks
期刊介绍: The publishing of CARPATHIAN JOURNAL of EARTH and ENVIRONMENTAL SCIENCES has started in 2006. The regularity of this magazine is biannual. The magazine will publish scientific works, in international purposes, in different areas of research, such as : geology, geography, environmental sciences, the environmental pollution and protection, environmental chemistry and physic, environmental biodegradation, climatic exchanges, fighting against natural disasters, protected areas, soil degradation, water quality, water supplies, sustainable development.
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