摘要
以1991、1995、1999、2004、2009年和2013年Landsat TM/ETM+/OLI遥感影像作为数据源,从景观和土地利用角度分析黄河三角洲大尺度范围的滨海湿地退化状况,并利用马尔科夫过程模型模拟2021年研究区滨海湿地的演变趋势。结果表明:1999—2004年和2004—2009年是黄河三角洲湿地退化较严重的两个时段,退化湿地占自然湿地总面积近40%,2009年以后,研究区退化得到一定的缓解。预计至2021年,湿地占区域陆地面积的比例将下降至60%。与2013年相比,自然湿地和人工湿地面积占比将分别下降4.52个百分点和3.08个百分点,草本沼泽、灌丛湿地、森林湿地和盐沼面积将分别减少32.21、15.76、19.33 km^2和74.86 km^2。由此可见,未来黄河三角洲滨海湿地的生态保护与修复工作仍十分艰巨。
The Landsat TM/ETM+/OLI remote sensing images as of 1991,1995,1999,2004,2009,and 2013 were selected as data sources to analyze large scale range coastal wetland degradation in the Yellow River Delta in the view of landscape and land use.The Markov pro⁃cess model was applied to simulate and predict the evolution trends of coastal wetlands of 2021 in the region.Results showed that the most serious wetland degradation in the Yellow River Delta appeared in the two periods of 1999—2004 and 2004—2009.The area proportion of degraded wetlands to the total natural wetlands was nearly 40%.The wetland degradation in the study area had been alleviated to a certain degree since 2009.Up to 2021,the proportion of wetlands to land area would fall to 60%.Compared with 2013,the proportion of natural wetland and constructed wetland would decrease by 4.52 percent point and 3.08 percent point,respectively.The area of marshes,shrub wet⁃lands,forest wetlands,and salt marshes would decline by 32.21,15.76,19.33 km^2 and 74.86 km^2,respectively.Therefore,the ecological protection and restoration work of coastal wetlands in the Yellow River Delta will be still arduous in the future.
作者
于淼
栗云召
屈凡柱
周迪
战超
王雪宏
YU Miao;LI Yun-zhao;QU Fan-zhu;ZHOU Di;ZHAN Chao;WANG Xue-hong(School of Resource and Environmental Engineering,Ludong University,Yantai 264025,China;The Institute for Advanced Study of Coastal Ecology,Key Laboratory of Ecological Restoration and Conservation of Coastal Wetlands in Universities of Shandong(Ludong Uni⁃versity),Ludong University,Yantai 264025,China;Shandong Provincial Key Laboratory of Eco-Environmental Science for Yellow River Delta,Binzhou University,Binzhou 256600,China)
出处
《农业资源与环境学报》
CAS
北大核心
2020年第4期484-492,共9页
Journal of Agricultural Resources and Environment
基金
国家重点研发计划项目(2017YFC0505900)
山东省黄河三角洲生态环境重点实验室开放基金项目(2016KFJJ03)。
关键词
黄河三角洲
滨海湿地
退化过程
演化预测
Yellow River Delta
coastal wetland
degradation process
evolution prediction
