“水-能源-粮食”服务价值核算研究——以贵州省为例

基于生态系统服务价值的概念与研究方法建立“水-能源-粮食”服务价值核算体系，核算贵州省2013—2017年“水-能源-粮食”对社会经济与自然生态的服务价值及其纽带关系的服务价值。结果显示，贵州省“水-能源-粮食”对经济社会与自然生态的总服务价值稳中有降，水资源的服务价值以对自然生态的调节价值为主且对总服务价值具有决定性影响；能源对社会经济的正面服务价值较大，但是以更大的自然生态的负面服务价值为代价，是造成WEF的总服务价值下降的主因；粮食的服务价值逐渐增大，主要为对社会经济的供给与支撑服务价值。贵州省“水-能源-粮食”纽带关系的服务价值较小，且不稳定，呈现波动特征。因此，贵州省应当发挥水资源与水景观的优势以稳定水的服务价值，挖掘能源对社会经济的服务价值时要重点防范其对自然生态的破坏；粮食生产注重面源污染防治，发展旅游农业与生态农业。同时，调节“水-能源-粮食”的纽带关系，提高系统的稳定性。水-能源-粮食；服务价值；纽带；贵州省

ESTIMATION OF WATER-ENERGY-FOOD (WEF) SERVICING VALUES BASED ON A CASE STUDY ON GUIZHOU PROVINCE

This paper uses concept and method of ecosystem servicing values to establish an estimating system of water-energy-food servicing values, which is used to estimate its servicing values of Guizhou's water-energy-food on economy and ecology and their ties. The gross servicing values is stable with declining. The servicing value of water resource lies in moderation of natural ecology and plays a critical role on the gross servicing values. Energy has a larger positive servicing value on social economy, but at a much larger negative ecological cost, which is the root cause of falling servicing value of WEF. The servicing values of food is increasing, providing a support to supply of social economy. The servicing value of WEF tie in Guizhou is small and unstable, so it suggests Guizhou fulfill water resources advantages in order to stabilize its servicing values. Boosting the servicing value of energy to social economy needs to prevent its impact on natural ecology, and to prevent panel pollution on food production, and to develop tourism and ecological agriculture. Moreover, moderation of WEF tie to improve the stability of system.