福建省水资源生态足迹时空差异及演变特征

Times and Regional Differences of Water Resources Ecological Footprint and Evolution Characteristics in Fujian Province

根据水资源生态足迹的基本原理和计算模型,对福建省2004-2012年水资源生态足迹和生态承载力进行了分析.结果表明：福建省水资源生态足迹在0.86~0.92 hm2之间,呈现周期性变化,农业用水消耗生态足迹占50%~60%.在水资源生态承载力上,年际变化差异大,受年降水量影响作用显著,且主要以地表水为主.在空间上,水资源生态足迹和水资源生态盈余均差异明显.闽西地区人均水资源生态足迹较高,闽东地区较低.各地市均为水资源生态盈余,且闽西盈余值大.在收敛与发散中,闽西3市总体上为向上发散状况,即人均生态足迹向上偏离全省平均值,闽东基本处于向上收敛的情况,闽南的厦门、漳州2市则为向下收敛.在时序演进上,福建省和各地级市万元GDP水资源生态足迹均为下降态势,其中福州下降相对值在20%左右,其余地市保持在60%以上.

According to the basic principle and calculation model of water resources ecological footprint,Water resources ecological footprints and ecological carrying capacity of Fujian province is analyzed from 2004 to 2012. The results shown that： Fujian water resources ecological footprint change periodically and between 0. 86 ~ 0. 92 hm2,mainly in the production,especially in the agricultural water,consumption accounts for 50% ~ 60%. On water resources ecological carrying capacity,interannual variation is distinctness,affected by annual precipitation was significant,and are mainly composed of surface water. In view of the space,the water resources ecological footprint and surplus are obviously different. The per capita water resources ecological footprint is higher in the west of Fujian,lower in the East of Fujian. Water resources ecological footprint is surplus around the city,higher in the west of Fujian,lower in the East of Fujian. On the convergence and divergence,the three districts in the west of Fujian overall for the upward divergence condition,The ecological footprint of water resources per capita upward deviation on the average value. East of Fujian is basically upward convergence,southern Xiamen,Zhangzhou two city is downward divergence. In the Time series evolution,Fujian province and the Ten thousand yuan GDP water resources ecological footprint is a trend of decline,relative value of declining in Fuzhou is 20%,other all maintained at more than 60%.