摘要
利用2000／2009年Landsat ETM／TM数据解译提取了辽河三角洲滨海湿地资源数据，建立了基于GIS的Markov预测模型，分析预测了滨海湿地资源的时空动态变化特征与演变趋势。研究结果表明，2000～2009年，辽河三角洲滨海湿地资源受到了人类活动的强烈干扰，天然湿地显著减少，以滩涂和沼泽减少为主，而人工湿地明显增加，大量的滨海天然湿地被开发为坑塘水库、养殖场、盐田以及建设用地；到2020年，天然湿地资源将急剧减少，滩涂将减少13.1％，沼泽将减少14.5％。摘要：利用2000／2009年LandsatETM／TM数据解译提取了辽河三角洲滨海湿地资源数据，建立了基于GIS的Markov预测模型，分析预测了滨海湿地资源的时空动态变化特征与演变趋势。研究结果表明，2000～2009年，辽河三角洲滨海湿地资源受到了人类活动的强烈干扰，天然湿地显著减少，以滩涂和沼泽减少为主，而人工湿地明显增加，大量的滨海天然湿地被开发为坑塘水库、养殖场、盐田以及建设用地；到2020年，天然湿地资源将急剧减少，滩涂将减少13.1％，沼泽将减少14.5％。
The geodata of the coastal wetland resources of Liaohe Delta were interpreted and extracted by using Landsat ETM/TM data in 2000/2009. Markov model was established based on GIS. The characteristics and the evolution trend of the temporal-spatial dynamic changes of coastal wetland resources were analyzed and predicted. The results showed that the coastal wetland resources of Liaohe Delta were intensely interfered by human activities, so natural wetlands were reduced significantly; beaches and marshes were reduced primarily. Due to the lots of natural coastal wetlands were developed for pits or reservoir, farms, salt pan and construction land, artificial wetland were increased significantly. By 2020, natural wetland resources will be sharply reduced, tidal flats will be reduced 13.1%, marsh will be reduced 14.5%. So the protection situation of coastal wetland in Liaohe Delta is very serious.
出处
《地理空间信息》
2014年第2期49-52,8,共4页
Geospatial Information
基金
教育部人文社会科学研究青年基金资助项目(11YJC630202)
辽宁省教育厅创新团队资助项目(WT2010031)
