佛山市基塘系统空间格局演变分析  

Spatial Evolution Analysis of Dike-Pond Systems in Foshan City

作　　者：刘凯[1] 王树功[2] 解靓[1] 庄剑顺[1] 

机构地区：[1]广州地理研究所,广州510070 [2]中山大学环境科学研究所,广州510275

出　　处：《热带地理》2008年第6期513-517,共5页Tropical Geography

基　　金：广东省科学院优秀青年科技人才基金项目(编号:粤科院优人[2007]12号);广东省自然科学基金“基于知识挖掘和时序雷达遥感数据的湿地流信息提取研究”(8151007003000008);广东省自然科学基金“红树林湿地生态系统健康诊断与评价方法研究”(07300508);2006年度中山大学理工科青年教师科研启动基金项目“珠江口典型红树林湿地生态系统健康评价及趋势研究”联合资助

摘　　要：以珠三角西部的佛山市为研究区域,以3个时相(1988、1998和2006年)的LandsatTM卫星数据为数据源,利用遥感技术监测基塘系统的空间变化,结合GIS技术与统计数据分析基塘系统空间格局演变特征。结果表明:1988―2006年间,佛山市基塘系统的变化呈先快速增长、后略有减少的趋势;基塘系统的增长部分多由农田转换而来,主要是因为基塘(主要是鱼塘)的经济效益高于传统农业的经济效益,且随着基塘系统内部的结构调整(基-塘比例的失调),传统的基塘正向单一的鱼塘演变。传统的基塘系统在珠三角正在逐渐消亡。A dike-pond system is an integrated agricultural ecosystem consisting of a land-planted ecosystem and a water-breeding ecosystem. It is one of the most traditional and representative agriculture ecosystems in the Pearl River Delta. The spatial-temporal patterns of the dike-pond systems and other land uses in Foshan are analyzed with the techniques of remote sensing and GIS. By use of three temporal Landsat TM images, the spatial-temporal patterns of dike-pond systems are monitored with visual interpretation method in the last two decades. The results show that the development trend of dike-pond systems was changing from a rapid growth during 1988-1998 to a slight decline during 1998-2006. The growth of dike-ponds came from the conversion of farmland because the economic efficiency of the ponds （especially the fishery） is larger than that of traditional agriculture. With the decrease of the proportion of the dike to the pond, the traditional dike-pond systems are fading in the Foshan, and most dike-pond system has been changing to fish pond with freshwater breeding function.

关 键 词：基塘系统 遥感 GIS 演变分析 

分 类 号：S181[农业科学—农业基础科学]