基于CA-Markov和InVEST模型的生境质量时空演变及预测——以武汉市为例  

Spatiotemporal Evolution and Prediction of Habitat Quality Based on CA Markov and InVEST Models—A Case Study of Wuhan City

作　　者：张明宇 王莉雯[1] Zhang Mingyu;Wang Liwen(School of Geography,Liaoning Normal University,Dalian,Liaoning 116029,China)

机构地区：[1]辽宁师范大学地理科学学院,辽宁大连116029

出　　处：《绿色科技》2023年第20期216-223,共8页Journal of Green Science and Technology

摘　　要：以长江经济带核心城市武汉为研究区,基于2010年、2015年、2020年的土地利用数据,使用CA-Markov模型和InVEST模型并结合LEI值,探究了土地利用变化所引起的生境质量演化特征,以及两者之间的影响力与关联性。结果表明:①2010-2020年,研究区的土地利用类型以耕地、水体和建设用地为主,耕地面积逐年减少,建设用地面积逐年增加。武汉市作为全国重要的工业基地和内陆最大的水陆空交通枢纽中心,以厂矿、大型工业区和交通道路为主的其他建设用地类型的增加比例最大,大量高生境质量的土地利用类型向低生境质量转化,城市整体的生境质量等级一直处于下降趋势。②2020-2025年,研究区内土地利用格局和生境质量的演变趋势与2010-2020年基本一致。生境质量较低的地类由城市中心向四周逐渐蔓延,中心城区的生境质量基本处于低等级,只有少数湖泊湿地附近的生境质量为中或较低等级。This paper takes Wuhan,the core city of the Yangtze River Economic Belt,as the research area.Based on land use data from 2010,2015,and 2020,the CA Markov model and InVEST model,combined with LEI values,are used to explore the evolution characteristics of habitat quality caused by land use changes,as well as the influence and correlation between the two.The results indicate that:①from 2010 to 2020,the land use types in the study area were mainly cultivated land,water bodies,and construction land.The cultivated land area decreased year by year,while the construction land area increased year by year.As an important industrial base in China and the largest inland water,land,and air transportation hub,Wuhan has the largest increase in other types of construction land,mainly including factories and mines,large industrial zones,and transportation roads.A large number of high habitat quality land use types have shifted to low habitat quality,and the overall habitat quality level of the city has been in a downward trend.②The evolution trend of land use patterns and habitat quality in the study area from 2020 to 2025 is basically consistent with that from 2010 to 2020.The land types with lower habitat quality gradually spread from the city center to the surrounding areas,and the habitat quality in the central urban area is basically at a low level,with only a few lakes and wetlands nearby having medium or lower levels of habitat quality.

关 键 词：InVEST模型 CA-Markov模型 生境质量 

分 类 号：F301[经济管理—产业经济]