中文摘要：

以1990年和2011年土地利用数据为基础,在野外调查的基础上,依据全国土地利用及其覆被标准,确定研究区景观分类系统,对研究区1∶10 000的土地利用现状图进行景观分类,采用洛伦茨曲线和基尼系数分析巩义市近20年景观动态变化时空特征.结果显示：空间尺度上,耕地、城镇村及工矿用地2种景观类型在巩义市各乡镇分布相对均匀;而水域及水利设施用地、其他未利用土地这两类景观类型在巩义市各乡镇分布差距悬殊,极不均匀;其他景观类型则介于两者之间.从时间变化上看,近20年间,耕地、园地、水域及水利设施用地、其他未利用土地、城镇村及工矿用地5种景观类型在巩义市各乡镇的分布有趋向集中的发展态势,而林地、草地、交通用地3种景观类型则呈现趋向均衡分布的态势.研究结果可为巩义市土地利用结构和景观规划调整提供参考.

英文摘要：

Based on the land cover data（1990,2011）and field investigation results of Gongyi city,this paper firstly classifies the landscape types of study area.In order to exposit the spatial and temporal characteristics of landscape dynamics,the Lorenz curve and Gini coefficient are selected and used to show the landscape changes of Gongyi city in nearly20 years.Finally,the study results are as follows：（1）on the spatial scale,landscape types of farmland and city-industry land show even distribution in the study area.However,the distributions of waters and water conservancy facilities and also other unused land are irregular and concentrated in several villages and towns;（2）in the past 20 years,changes of the five landscape types（such as farmland,garden plot,waters and water conservancy facilities）have a concentrative development tendency,while the other three landscape types tend to evenly distribute in the whole study area.This study hopes to provide some useful information for landscape planning and management of the Gongyi city in future.