贵阳市湿地时空演变及驱动因素分析  

Spatial-temporal evolution process and driving factors of wetlands in Guiyang city

作　　者：张蒙[1] 赵宇鸾[1] 董顺舟 黄登科[1] 

机构地区：[1]贵州师范大学地理与环境科学学院,贵州贵阳550001

出　　处：《贵州师范大学学报（自然科学版）》2015年第5期8-14,共7页Journal of Guizhou Normal University：Natural Sciences

基　　金：国家自然科学基金资助项目(41361021);贵州师范大学博士科研基金(1190405032130001)

摘　　要：采用遥感影像、统计资料等数据,运用Arc舀s、Fragstats3.3、SPSS19.0等软件进行数理统计和相关分析,对2000 ～ 2010年贵阳市湿地景观格局变化及其动因进行研究.结果表明：10年间贵阳市湿地面积呈减少趋势,减少了8 153.8hm2,减少面积占原湿地面积的8.8％;主城区湿地面积减少幅度更为明显,减少了5 141.92hm2,减少湿地面积占主城区原湿地面积的43.08％;人工湿地减少幅度大于自然湿地,水田湿地减少规模最大;景观斑块密度降低,聚集度降低,破碎度增加等一系列变化对景观连通度产生负面影响,不利于湿地景观多样性的增强;随着贵阳市城市化的加快发展,城市扩张占用了大量湿地,城市湿地正面临生态退化的威胁,政府应科学划定湿地保护红线,促进贵阳市湿地可持续利用.The paper selects Guiyang city as a case, uses some data, such as remote sensing image and statistical data, and uses softwares such as Arcgis, Fragstats, and SPSS to make mathematical statistics and related analysis for the change of the landscape pattern and its driving factors during 2005 2011. The results are shown as follows：During the ten years, the wetlands area had been decreasing in Guiyang city, the decreased area is 8153.8hm2, it accounts for 8.8% of the original wetland area; the decreased amplitude of main urban areas is more obvious, the decreased area is 5 141.92hm2, it accounts for 43.08% of the original wetland area. The decreased amplitude of artificial wetlands is greater than the natural wetlands, the reduction scale of paddy rice fields is the largest;The patch density and the aggregation degree have decreased, the fragmentation degree has increased, and a series of changes have a negative impact on the connectivity in landscape, and it is not good for the enhancement of diversity in wetlands landscape ; On the process of urban development in Guiyang city, the expansion of built-up area is taking up a large number of wetlands, urban wetland is facing the threat of ecological degradation. The government should be scientifically layout the red line of wetlands protection, promote the sustainable use of wetlands.

关 键 词：湿地 时空演变 贵阳市 

分 类 号：F301.24[经济管理—产业经济]