易晶晶(1993-),女,湖北宜昌人，硕士研究生，主要从事水文水资源研究。E?-mail:pmxminet@toxmail.com
TV213.4
广东省自然科学基金项目(2014A030313102)；
用水结构是社会经济发展对水资源需求差异的集中体现。选取广东省1980～2015年用水数据,运用信息熵理论研究该区域用水结构时空演变特征,并采用重心模型进行验证。研究结果表明:(1)1980～2015年间,广东省用水结构信息熵总体呈上升趋势,用水系统的稳定性和均衡性增强;(2)用水结构空间演变呈现显著的区域性差异,用水结构信息熵重心逐步向珠三角地区转移。农业用水重心逐步向粤北地区转移,工业用水、生活用水和城镇公共用水重心逐步向珠三角地区转移。
Water?utilization?structure?is?a?concentrated?reflection?of?the?demand?difference?in?socioeconomic?development?on?waterresources.?Based?on?the?water?consumption?data?of?Guangdong?Province?during?1980?2015,?this?paper?studied?the?spatiotemporalpatterns?of?water?utilization?structure?by?information?entropy?and?verified?the?results?by?gravity?center?model.?The?results?show?that:(1)?The?information?entropy?of?water?utilization?structure?in?Guangdong?Province?shows?an?overall?upward?trend.?The?water?use?sys-tem?tends?to?be?more?stable?and?balanced.?(2)?The?evolution?of?water?utilization?in?Guangdong?Province?shows?significant?regionaldifferences,?which?reflects?in?the?gravity?center?of?information?entropy?gradually?migrated?toward?the?Pearl?River?Delta.?In?addition,the?gravity?center?of?industrial,?domestic?and?urban?public?water?use?gradually?migrate?toward?the?Pearl?River?Delta?region,?whilethe?gravity?center?of?agricultural?water?utilization?gradually?migrate?toward?the?north?Guangdong.
