GIS技术在洪湖环境演变研究中的应用

本文运用GIS技术,探索了洪湖环境的近期变化及其机理,以空间的、定量的形式,展示了与修建隔堤、分割湖区、围湖垦殖及水位控制等人为活动因素相联系的湖泊环境变化效应和过程,分析了湖中挺水植物分布的动态变化与趋协。这项工作进一步表明了地理信息系统方法在湖泊环境变化的监测、评价和研究中具有独特的功效和实用价值。

A gis-based study recent environmental change honghu lake

By using GIS(Geographic Infiomation System) to analyze recent environmental changes and associated human impacts in Honghu Lake over the last four decades, some preliminary results of the study are presented as follows: 1. the reduction in lake surface area was resulted from hydrological engineering, agricultural reclamation and swamp formation (paludification); 2. the development of emergent mecrophytes in the lake was under recent policies of lake resource use and management. PC ARC/INFO was used as the main GIS software running on an IBM-386 compatible micro-computer to automate, manipulate, analyze and display geographical data, mainly from remote sensing images and landform maps. The environmental effects and processes under human activities ,by means of embankment, subdivision, reclamation and water level control , were successfully displayed and documented. It illustrates the value of GIS in environmental monitoring, assessment and managenent.