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王 凯, 李景保, 李 欢.山西省水-能源-粮食系统耦合协调时空变化特征研究水资源与水工程学报[J].,2020,31(3):45-52
山西省水-能源-粮食系统耦合协调时空变化特征研究
Spatial and temporal variation characteristics of the coupling and coordination of water-energy-food nexus in Shanxi Province
  
DOI:10.11705/j.issn.1672-643X.2020.03.07
中文关键词:  水-能源-粮食系统  耦合协调  空间差异  变化特征  山西省
英文关键词:water-energy-food(W-E-F) nexus  coupling and coordination  spatial difference  variation characteristics  Shanxi Province
基金项目:国家自然科学基金项目(41571100); 湖南省重点学科地理学建设项目
作者单位
王 凯, 李景保, 李 欢 (湖南师范大学 资源与环境科学学院 湖南 长沙 410081) 
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中文摘要:
      为探究山西省水-能源-粮食(W-E-F)系统耦合协调程度的时空变化特征,构建W-E-F系统评价指标体系,采用综合评价指数和耦合协调模型,测算全省及各地市2008-2017年W-E-F系统发展水平及其耦合协调程度,并分析其时空变动特征。结果表明:9年间全省W-E-F系统耦合协调度从0.55上升到0.83,总体达到良好协调水平。但各子系统发展特征不同,粮食子系统发展水平较高,表现稳定,水资源子系统发展滞后且稳定性较差。系统协调水平和各子系统的发展水平均存在显著且逐渐扩大的空间差异,2017年初级协调区和中级协调区占比分别为45%和55%。太原、忻州和晋中3市协调水平较高,协调水平较低的朔州和运城主要受能源和水资源子系统的制约;各子系统空间差异大小为能源>粮食>水资源,W-E-F各子系统发展水平最低的地区分别是运城、朔州、阳泉。大多数地区面临W-E-F系统内部发展日益失衡的问题,各子系统间存在突出的矛盾,主要表现为粮食和能源子系统与水资源子系统之间的压力和制约效应。最后提出促进山西省W-E-F系统协调发展的措施。
英文摘要:
      In order to explore the spatial and temporal characteristics of the coupling and coordination of water-energy-food (W-E-F) nexus in Shanxi Province, the evaluation index system of W-E-F nexus was constructed. Then the comprehensive evaluation indexes obtained herewith and the coupling coordination model were used to measure the development level and coupling coordination degree of W-E-F nexus in Shanxi Province as a whole and the cities within from 2008 to 2017. In the meantime the spatial and temporal characteristics of the nexus was analyzed. The results show that the coupling coordination degree of W-E-F system in the province has risen from 0.55 to 0.83 in the past nine years, reaching a good coordination level as a whole; however, the development characteristics of each subsystem is differentiated, the development level of food subsystem is relatively high and its performance is stable, but the development of water resources subsystem is lagging behind with poor stability. There are significant and expanding spatial differences in the system coordination and the development of each subsystem. The proportion of primary coordination areas and intermediate coordination areas accounted for 45% and 55% of the province respectively in 2017. The areas with higher coordination level include Taiyuan, Xinzhou and Jinzhong, whereas Shuozhou and Yuncheng with lower coordination level are mainly restricted by energy and water resources subsystems. The sequence of subsystem spatial difference is energy > food > water resources, and the areas with the lowest development level of each subsystem are Yuncheng, Shuozhou and Yangquan. Most regions in Shanxi Province are faced with the problem of increasingly unbalanced internal development of W-E-F system, the contradictions among the subsystems are prominent, which mainly manifested in the pressure and restriction effect brought by the contradiction between the food and energy subsystem and the water resources subsystem. Finally, the measures to promote the coordinated development of Shanxi W-E-F system are put forward.
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