1990—2020年青海省“三生”空间格局演化及影响因素研究

Research on the Evolution and Influencing Factors of the“Production-Living-Ecological”Space Pattern in Qinghai Province from 1990 to 2020

基于1990—2020年青海省4期土地利用数据,构建“三生”空间分类体系,探究青海省“三生”空间格局演化及影响因素。结果表明:1990—2020年青海省各空间类型间均发生不同程度的转化,2010—2020年整体表现为潜在空间转向生产-生态空间和生态空间、生产-生态空间与生态空间之间相互转移的特征,高程与坡度对空间类型分布影响较大;2020年青海省生产-生态空间面积占全省面积比例最高,面积为408011.90 km^(2),而生产-生活空间面积仅为1769.47 km^(2);30 a间青海省“三生”空间景观格局破碎化、复杂化的趋势有所减缓,异质性降低、连通性升高;经济规模、城镇化水平、交通条件、碳排放强度是青海省“三生”空间格局的主要影响因子。

Based on the land use data of phase 4 of Qinghai Province from 1990 to 2020,the paper built a“production-living-ecological”space classification system and explored the spatial-temporal evolution and influencing factors of the“production-living-ecological”spatial pattern in Qinghai Province.The results show that from 1990 to 2020,all spatial types in Qinghai Province have different degrees of mutual transformation,from 2010 to 2020,the overall performance is characterized by a shift from potential space to production ecological space and ecological space,as well as the mutual transfer between production ecological space and ecological space,elevation and slope have greater influence to the spatial type distribution.As of the year of 2020,the proportion of production ecological space area in Qinghai Province is the highest,with an area of 408011.90 km^(2)and the production-living space area is 1769.47 km^(2).The trend of fragmentation and complexity of the spatial landscape pattern of the“production-living-ecological”in Qinghai Province has slowed down over the past 30 years,with a decrease in heterogeneity and an increase in connectivity.Economic scale,urbanization level,transportation conditions and carbon emission intensity are the main influencing factors of the spatial pattern of the“production-living-ecological”in Qinghai Province.