基于知识规则的洪泽湖湿地信息提取及动态变化研究.pdfVIP

2011. 3 遥感信息 基于知识规则的洪泽湖湿地信息提取 及动态变化研究 张砾, 阮仁宗 ( , 210098) : 湿地是自然生态系统的重要组成部分快速准确地获取湿地基础信息, 对湿地的动态监测保 和可 持续利用具有重要意义本文利用知识规则分别提取出洪泽湖 1988 年10 月25 日和2002 年11 月9 日两时相遥 感影像的湿地信息, 然后通过叠加分析比较了两 个时相的湿地信息变化情况研究发现, 洪泽湖湿地植被在这 14 年间急剧减少, 有待采取有效的措施进行保 : 洪泽湖湿地; 知识规则; 信息提取; 动态变化 doi:10. 3969/ . issn. 1000- 3177. 2011. 03. 012 : T P79 : A : 1000- 3177( 2011) 115- 0067- 04 Extraction of Hongze Lake Wetlands and Their Change Study Based on Knowledge ules ZH A NG L i, R U A N Renzong (State Key Laboratory of HydrologyWater Resources and Hydraulic Engineering, Hohai University,Jiangsu 210098) Abstract:W etland is considered an impor tant part of the ecolog ical system . Ra pid acquisitio n of accurate infor mation of w et land is sig nif icant to the monito ring , pro tection and su st ainable utilizatio n of w etlands. In t his paper , know ledge rules w ere used to the classif ication of the r emote sensing imag es o f 25t h Octo ber 1988 and 9t h N ovember 2002 . T hen , t he results of classif ication of tw o date imag ery w ere over laid for the change analy sis of w et land veg etatio n dur ing the perio d. T he r esear ch show s that w et land in the area has lost a lo t fro m 1997 to 2002. It is necessar y to take the eff ectiv e measures to pro tect the Ho ng ze L ake w et lands . Key words:Ho ng ze lake w etlands; kno wledg e rule; ext raction ; dy namics , 1 [ 2] ,