The coupling of agricultural water footprint and socioeconomic development in ecological functional zones: A case study of Gansu Province, China

IF 3.3 2区地球科学 Q2 ENVIRONMENTAL SCIENCES

Anthropocene Pub Date : 2023-09-01 DOI:10.1016/j.ancene.2023.100391

Jingwen Kou , Chengyi Li , Weijing Ma

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引用次数: 0

Abstract

Water footprint accounting can evaluate the real occupancy of water resources by combining the consumption of blue water and green water. In this study, we calculated agricultural water footprint (AWF) including six patterns of crops water footprint (CWF) and three patterns of animal products water footprint (APWF) from 2000 to 2020 in Gansu Province, China, then the spatiotemporal matching pattern and its heterogeneity of AWF and socioeconomic factors were identified at the ecological functional zone level. The results show that: (1) The AWF showed a rising trend, increasing by 40%. (2) The spatial difference of AWF was obvious, the main contributor to the CWF changed from wheat to maize, and the main contributors to the APWF were always pork and beef. At the ecological zones level, the central and eastern Loess Plateau and Hexi inland areas together accounted for 60% of the total AWF of Gansu Province. (3) The center of gravity of AWF was always located in Lanzhou, the provincial capital, but tended to gradually move to the northwest. (4) The spatiotemporal matching degree between AWF and population and GDP was relatively good, but it was highly unbalanced between blue water footprint (BWF) and planting area. Considering both water-saving potential and feasibility, we suggest that Gansu Province should carry out sustainable agricultural management from three aspects, that is, optimizing the planting structure, emphasizing water conservation in animal husbandry, and improving the spatial matching degree between AWF and socioeconomic factors.

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生态功能区农业水足迹与社会经济发展的耦合研究——以甘肃省为例

水足迹核算可以将蓝水和绿水的消耗结合起来，评价水资源的实际占用情况。通过对2000 - 2020年甘肃省农业水足迹(AWF)的计算，包括6种作物水足迹(CWF)和3种动物产品水足迹(APWF)，在生态功能区水平上识别了农业水足迹与社会经济因素的时空匹配格局及其异质性。结果表明:(1)AWF呈上升趋势，增加了40%。(2) AWF的空间差异明显，主要贡献因子由小麦变为玉米，主要贡献因子为猪肉和牛肉。在生态区水平上，黄土高原中东部和河西内陆地区合计占甘肃省总AWF的60%。(3) AWF的重心始终位于省会兰州，但有逐渐向西北移动的趋势。(4) AWF与人口、GDP的时空匹配度较好，但蓝水足迹(BWF)与种植面积的时空匹配度不均衡。从节水潜力和可行性两方面考虑，建议甘肃省从优化种植结构、重视畜牧业节水、提高AWF与社会经济因素的空间匹配度三个方面开展农业可持续经营。

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来源期刊

Anthropocene Earth and Planetary Sciences-Earth and Planetary Sciences (miscellaneous)

CiteScore

6.30

自引率

0.00%

发文量

审稿时长

102 days

期刊介绍： Anthropocene is an interdisciplinary journal that publishes peer-reviewed works addressing the nature, scale, and extent of interactions that people have with Earth processes and systems. The scope of the journal includes the significance of human activities in altering Earth’s landscapes, oceans, the atmosphere, cryosphere, and ecosystems over a range of time and space scales - from global phenomena over geologic eras to single isolated events - including the linkages, couplings, and feedbacks among physical, chemical, and biological components of Earth systems. The journal also addresses how such alterations can have profound effects on, and implications for, human society. As the scale and pace of human interactions with Earth systems have intensified in recent decades, understanding human-induced alterations in the past and present is critical to our ability to anticipate, mitigate, and adapt to changes in the future. The journal aims to provide a venue to focus research findings, discussions, and debates toward advancing predictive understanding of human interactions with Earth systems - one of the grand challenges of our time.