摘要
以烟台市为研究区,基于土地利用类型、威胁源等数据,运用InVEST模型获得2000、2010、2020年生境质量退化指数,利用ArcGIS中的空间分析模块的Reclassify工具对研究区生境退化指数进行重分类,获得2000、2010、2020年生境退化度。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。2000—2020年,不同时间研究区生境退化度均有55%以上面积处于中度退化;另外,微弱和轻度退化面积减少,高度退化面积增加,变化原因与经济环境和环保政策有较大关系。研究结果确定了烟台市生境质量退化时空状况,为维护烟台市生物多样性,社会进一步发展提供参考依据。
Taking Yantai city as the study area,based on the data of land use type and threat element,this paper uses the InVEST model to obtain the habitat quality degradation index in 2000,2010 and 2020,reclassifies the habitat degradation index in the study area by using the Reclassify tool of the spatial analysis module in ArcGIS,and obtains the habitat degradation degree in 2000,2010 and 2020.The results showed that cultivated land and grassland were the main land types in the study area,and the area of construc-tion land and wetland increased year by year.From 2000 to 2020,more than 55%of the area with habitat degradation degree in the study area was in moderate degradation,the area with weak and mild degradation decreased,and the area with high degradation in-creased.The reason for the change is closely related to the economic environment and environmental protection policies.The results determined the temporal and spatial status of habitat quality degradation in Yantai,and provided a reference basis for maintaining biodiversity and further social development in Yantai.
作者
杨单单
马立婷
YANG Dandan;MA Liting(Yantai Gold College,Yantai 265401,China;Weifang Survey and Mapping Institute,Weifang 261000,China)
出处
《测绘与空间地理信息》
2023年第9期123-126,共4页
Geomatics & Spatial Information Technology
