5个时期黑龙江省天然湿地动态及其影响因素研究

发布时间：2018-04-08 10:44

本文选题：天然湿地　切入点：耕地　出处：《湿地科学》2017年01期

【摘要】：在地理信息系统平台上,利用1980年、1990年、2000年、2010年Landsat TM影像和2014年Landsat 8ETM+影像数据、1980~2014年黑龙江省气象数据和社会经济数据,采用主成分分析方法和灰色关联度方法,研究黑龙江省主要天然湿地变化及其主要影响因素,以及各环境因子与各类型湿地的关联性。研究结果表明,沼泽湿地面积从1980年的617.5×104hm2减少为2014年的389.0×104hm2,约萎缩了37.0%;与1980年相比,2014年黑龙江省的天然湿地(沼泽湿地、湖泊湿地和河流湿地)面积减少了243.1×104hm2,萎缩了34.4%;分布在研究区东部、东北部和西南部的天然湿地大面积消失;消失的天然湿地主要转变为耕地和城市建设用地,有关土地利用的相关政策对黑龙江省天然湿地面积变化也有一定影响。
[Abstract]:On the platform of GIS, the meteorological data and social economic data of Heilongjiang Province from 1980 to 2014 were analyzed by using Landsat TM image and Landsat 8ETM image data of 1980, 1990, 2000, 2010 and 2014 respectively. The principal component analysis (PCA) method and grey correlation degree method were used.The changes of main natural wetlands in Heilongjiang Province and their main influencing factors were studied, as well as the relationship between environmental factors and various types of wetlands.The results showed that the area of the marsh wetland decreased from 617.5 脳 104hm2 in 1980 to 389.0 脳 104 hm-2 in 2014, which shrank by about 37.0.The natural wetland (swamp wetland) in Heilongjiang Province in 2014 (swamp wetland) in 2014 compared with 1980.The area of lake wetlands and river wetlands decreased by 243.1 脳 10 4 hm2.The natural wetlands distributed in the east, northeast and southwest of the study area disappeared largely, and the disappeared natural wetlands were mainly converted into cultivated land and urban construction land.The related land use policy also has certain influence on the change of natural wetland area in Heilongjiang Province.
【作者单位】：哈尔滨师范大学地理科学学院;
【基金】：国家自然科学基金项目(41071332)资助
【分类号】：P942;P208;P237

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