陕西省2005-2020年土地利用变化和生境质量影响研究

Research on the Impact of Land Use Change and Habitat Quality in Shaanxi Province from 2005 to 2020

【目的】研究土地利用变化和生境质量及两者之间的联系,为保持及提高区域生境质量提供参考。【方法】以陕西省为研究对象,采用2005、2010、2015、2020年15年间四期的土地利用数据,应用In⁃VEST模型的Habitat Quality(生境质量)模块对陕西省生境质量进行评估。【结果】①2005—2020年间陕西省建设用地、林地、草地面积增加,耕地面积显著减少;②陕西省高生境质量区域分布于秦岭山地部分及陕北山区,低生境质量及较低生境质量区域集中在关中西安市及周边城市区域。【结论】生境质量受人类活动影响较大,在进行经济发展的同时,也应注意生境质量的保护和提升。

[Purposes]This paper studies the land use change,habitat quality and the relationship between them to,provide a reference for maintaining and improving the quality of regional habitat.[Methods]Taking Shaanxi Province as the research object,using the land use data of four periods in 2005,2010,2015 and 2020,the Habitat Quality module of the InVEST model was used to evaluate the habitat quality of Shaanxi Province.[Findings]①From 2005 to 2020,the area of construction land,forest land and grassland in Shaanxi Province increased,and the cultivated land area decreased significantly.②The areas of high habitat quality in Shaanxi Province are distributed in the mountainous part of Qinling Mountains and the mountainous areas of northern Shaanxi,and the areas of low habitat quality and low habitat quality are concentrated in Xi'an City and surrounding urban areas in central China.[Conclusions]Habitat quality is greatly affected by human activities,and attention should be paid to the protection and improvement of habitat quality while carrying out economic development.