基于水足迹的贵州省平塘县农业用水与经济脱钩分析  

Analysis of Agricultural Water Use and Economic Decoupling in Pingtang County of Guizhou Province Based on Water Footprint

作　　者：易武英[1,2] 苏维词 李威 张建利[2] 邢丹 YI Wuying;SU Weici;LI Wei;ZHANG Jianli;XING Dan(College of Life Science,Guizhou University,Guiyang,Guizhou 550025,China;Institute of Mountain Resources,Guizhou Academy of Sciences,Guiyang,Guizhou 550001,China;Geographic Science School of Chongqing Normal University,Chongqing 400047,China;Research Institute of Sericulture,Guizhou Academy of Agricultural Science,Guiyang,Guizhou 550006,China)

机构地区：[1]贵州大学生命科学学院,贵州贵阳550025 [2]贵州省山地资源研究所,贵州贵阳550001 [3]重庆师范大学地理与旅游学院,四川重庆400047 [4]贵州省农科院蚕业研究所,贵州贵阳550006

出　　处：《水土保持通报》2018年第4期295-300,307,共7页Bulletin of Soil and Water Conservation

基　　金：贵州省科技计划项目"射电天文望远镜(FAST)石漠化区生态服务功能调控及洞穴养生资源开发利用与示范"(黔科合SY字[2015]3018);贵州省科技计划项目"典型喀斯特峰丛洼地贫困农户生态效应与生计安全研究"(黔科合基础[2016]1528-3号);国家自然科学基金项目"石漠化地区桑树丛枝菌根真菌对宿主根系吸水的促进作用"(31460225)

摘　　要：[目的]从水足迹视角剖析平塘县农业经济增长与农业水资源利用耦合作用机理,为喀斯特峰丛洼地生态治理提供参考资料。[方法]利用联合国粮农组织推荐CROPWAT 8.0软件,测算平塘县2002—2015年农业水足迹,运用脱钩理论,分析平塘县2001—2015年农业发展与农业水资源利用脱钩态势。[结果](1)2002—2015年平塘县水足迹与生产总值整体上呈波动上升趋势,但其增长率波动性较大;(2)从Tapio脱钩弹性指数来看,现阶段农业经济增长与农业水资源消耗关系尚不稳定,农业水资源不可持续性利用状态仍存在;(3)2007年为脱钩关系较为理想年份,其次是2008年,协调状况最差是2006,2002—2015年脱钩态势系整体上,呈倒U形变化趋势;(4)从面积来看,研究时段弱脱钩面积比重范围为0%~97.9%(2010年最大,2013年其次,2007和2011年最小),强脱钩面积比重范围为0%~100%(2007年最大,2008年其次,2010年最小),衰退脱钩面积比重范围为0%~49.7%(2011年为49.7%,其他年份为0)。[结论]总体上,平塘县农业经济增长与农业水资源利用协调状况不佳。[Objective]From the perspective of water footprint,the coupling mechanism between agricultural economic growth and utilization of agricultural water resources in Pingtang County of Guizhou Province was analyzed in order to provide reference materials for ecological management of karst peak cluster depression.[Methods]Using the CROPWAT 8.0 software recommended by the Food and Agriculture Organization of the United Nations,to calculate the agricultural water footprint of Pingtang County,and using decoupling theory to analyse the decoupling situation between agricultural development and utilization of agricultural water resources in Pingtang County from 2001 to 2015.[Results]①The water footprint and GDP of Pingtang County from 2002 to 2015 fluctuated and increased,but its growth rate was volatile.②From the perspective of tapioelasticity index,the relationship between agricultural economic growth and agricultural water consumption is still unstable at the present stage,unsustainable utilization of agricultural water resources still exists;③The ideal or optimistic year for decoupling was 2007,followed by 2008.The worst coordination was 2006 year,and the trend of decoupling showed a trend of inverted“U”shape as a whole from 2002 to 2015;④In terms of area,the specific gravity range of weak decoupling area during the study period was 0%~97.9%(the largest was 2010,the second largest was 2013,and the smallest was 2011),the specific gravity range of strong decoupling area was 0%~100%(the largest was 2007,the second largest was 2008,and the smallest was 2010),and recession decoupling area specific gravity range was 0%~49.7%(it was 49.7%in 2011,and other years was 0).[Conclusion]Overall,agricultural economic growth and agricultural water use coordination is not good in Pingtang County.

关 键 词：脱钩分析 农业水足迹 经济农业经济增长 协调发展 喀斯特峰丛洼地 平塘县 

分 类 号：TV23.9[水利工程]