摘要
Abstract
In order to study the dynamic changes in the landscape pattern of ecological elements in nature reserves,the Baili Azalea Scenic Spot in Guizhou Province was selected as the research object,four periods(1990,2000,2010,2020)of land use type data were selected,and the landscape pattern area dynamic analysis,landscape pattern index analysis,and other methods were used to analyze the landscape pattern evolution characteristics of the Baili Azalea Scenic Spot from 1990 to 2020.The results showed that,from 1990 to 2020,the land use types in Baili Azalea Scenic Spot were mainly forest land and arable land,with an increase in forest land,water area,and construction land,while the area of arable land and grassland decreased;over the past 30 years,9.3 km2 of land had been transferred,with a net decrease of 4.23 km2 in arable land and a net increase of 4.20 km2 in forest land.At the level of landscape,the overall fragmentation of the landscape in the study area decreased,landscape heterogeneity weakened,landscape structure tended to be simpler,and the degree of landscape aggregation increased.At the level of landscape pattern,forest land was the dominant landscape in the study area,and the degree of fragmentation of forest land,arable land,and grassland patches reduced.The changes in water area and construction land were not significant.Overall,the ecological environment of the Baili Azalea Scenic Spot continues to improve,but the landscape pattern tends to be single.关键词
景观格局/动态变化/百里杜鹃风景名胜区/贵州省/1990-2020年Key words
landscape pattern/dynamic change/Baili Azalea Scenic Spot/Guizhou Province/1990-2020分类
资源环境
