Evaluation of Landscape Ecological Health and Trend Prediction of National Wetland Parks in the Context of Ecological Civilization Construction:Take the Hunan Miluojiang National Wetland Park as an Example
Scientific evaluation of landscape ecological health level and evolution trend of national wetland parks has theoretical significance and practical value to promote the high-quality development of national wetland parks.Based on the remote sensing interpretation data before and after the construction of the Hunan Miluojiang Na-tional Wetland Park,an evaluation system was constructed from the level of wetland environment,landscape struc-ture,and comprehensive function.Meanwhile,spatial and temporal differences in landscape ecological health were analyzed by using spatial interpolation and other methods,combined with the grey prediction model to predict the trend of landscape ecological health in the studied area in the future period.Results of the study show as follows.(1)From the viewpoint of landscape pattern,the construction land continues to expand,the landscape of water,woodland and grassland gradually decreases,and the trend of landscape fragmentation slows down but still exists.(2)From the viewpoint of the landscape ecological health level,the temporal evolution of the landscape is general-ly in a sub-healthy state,and the decline was particularly obvious in 2013,and moderated in 2018 and 2022,and the wetland environment in various subsystems is basically healthy.However,the index values decline year by year,and the landscape pattern becomes increasingly fragmented,which eased in 2018,but the socio-economic in-dex grows significantly.Regional differences in the spatial distribution are obvious,the landscape ecological health level in the central-southern region continues to decline during the studied period,and the landscape degradation in the southeastern part of the country is a serious problem.(3)From the trend of landscape ecological health evolu-tion,the landscape ecological health level of the Hunan Miluojiang National Wetland Park is basically in a sub-healthy state in the coming period of time,although it has slowed down.
ecological civilization constructionlandscape ecological healthtrend predictiongrey predic-tion GM(1,1)modelthe Hunan Miluojiang National Wetland Park
NETL
NSTL
万方数据
