2000-2020年烟台市生境质量时空演变分析

Analysis on spatial and temporal evolution of habitat quality in Yantai from 2000 to 2020

文章以烟台市为研究区,基于土地利用类型,威胁元和威胁程度等数据,通过转移矩阵,运用InVEST模型获得2000、2010、2020年生境质量指数。结果表明:耕地和草地为研究区主要用地类型,建设用地和湿地面积逐年增加,以草地、耕地、林地流向建设用地和湿地为主。2000-2020年生境质量整体水平不高,呈现先下降后上升的趋势,不同区域生境质量差异较大。研究结果确定了烟台市生境质量时空状况,为维护烟台市生物多样性具有一定的参考价值。

Taking Yantai City as the study area, based on the data of land use type, threat element and threat degree, the habitat quality index in 2000, 2010 and 2020 was obtained by using the invest model through the transfer matrix. The results showed that cultivated land and grassland were the main land types in the study area, and the construction land and wetland area increased year by year. Grassland, cultivated land and forest land mainly flowed to construction land and wetlands. From 2000 to 2020, the overall level of habitat quality was not high, showing a trend of first decreasing and then increasing. The habitat quality in different regions varied greatly. The results of the study confirmed the spatial and temporal status of the habitat quality in Yantai City, which had a certain reference value for maintaining the biodiversity of Yantai city.