1990-2018年黄河流域(河南段)土地利用格局时空演变  

Spatiotemperal evolution of land use pattern in the Yellow River Basin(Henan section)from 1990 to 2018

作　　者：肖东洋[1] 牛海鹏[1,2] 闫弘轩 樊良新[1,2] 赵素霞[1,2] Xiao Dongyang;Niu Haipeng;Yan Hongxuan;Fan Liangxin;Zhao Suxia(School of Surveying and Land Information Engineering,Henan Polytechnic University,Jiaozuo 454000,China;Institute of Ecological Civilization and High-quality Development of Yellow River,Henan Polytechnic University,Jiaozuo 454000,China;Academy of Mathematics and Systems Science,Chinese Academy of Sciences,Beijing 100190,China;Center for Forecasting Science,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]河南理工大学测绘与国土信息工程学院,焦作454000 [2]河南理工大学黄河生态文明与高质量发展研究院,焦作454000 [3]中国科学院数学与系统科学研究院,北京100190 [4]中国科学院预测科学研究中心,北京100190

出　　处：《农业工程学报》2020年第15期271-281,F0004,共12页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金项目(41371524);河南省软科学(192400410076);河南理工大学创新型科研团队(T2018-4)。

摘　　要：研究长时间序列的土地利用时空演变规律,对科学推进黄河流域生态保护和社会经济高质量发展具有重要意义。该研究基于1990、2000、2010和2018年土地利用遥感数据,以具有中游和下游双重属性的黄河流域(河南段)为研究对象,利用土地利用变化指数、弦图(Chord Diagram)可视化模型及重心迁移模型,探讨了近30年黄河流域(河南段)土地覆被变化的流量、流向、多样性程度及政策启示。结果表明:1)粮食保障用地(约55%)和生产生活用地(约10%)主要分布在平原地带,生态保育用地(约35%)主要集中在海拔较高的山地。2)1990-2018年间旱地的流出和流入行为均体现出显著的主导性,水田、水域和草地以流出行为为主导,城镇用地、农村居民点和其他建设用地以流入行为为主导。3)中心城市的土地利用变化在整个时期内具有明显的区域带动效应。4)粮食保障用地和生态保育用地的重心均向西迁移且面积呈减少趋势,说明下游平原地带的优质耕地减少且生态系统服务功能在逐步减弱;生产生活用地面积逐年增加,城镇用地重心向东迁移表明下游各城镇的社会经济发展逐渐活跃,农村居民点和其他建设用地重心向西迁移表明中游的人口规模逐渐增大。Understanding the historical change trajectory of Land Use/Land Cover Change(LUCC)is helpful to analyze the land use trends under the interference of human activities and changes in the natural environment,thereby helping decision makers to eliminate the negative impact of unreasonable land use patterns to the greatest extent.Yellow River Basin is the fifth longest river in the world,its ecological environment continues to deteriorate due to the rapid population growth and urban expansion,which has become one of the regions with the most serious soil erosion in China.Aiming to promote the ecological quality and high-quality development of social economy under the human interference and natural environment change,we analyzed the spatiotemporal dynamic of the LUCC in the Yellow River Basin(Henan section)from the watershed scale and proposed policy recommendations.We introduced the chord diagram visualization model to intuitively show the flow,direction and diversity of land cover changes,which would enrich the visual research method system of the land cover quantity transfer trajectory.The land use change index,chord diagram model and gravity center transfer model were used in this paper to analyze the spatial-temporal evolution trajectory and policy implications of the land use pattern in the Yellow River Basin(Henan section)in the past 30 years based on the land use remote sensing data in 1990,2000,2010 and 2018.The results showed that:1)Ecological conservation land(35%)was mainly concentrated in the mountainous areas with higher elevation in the middle reaches;food security land(55%)and production and living land(10%)were mainly distributed in the central and eastern plains.2)The outflows and inflows of dry land from 1990 to 2018 showed significant dominance;paddy field,water and grassland were dominated by outflow;urban land,rural settlements and other construction land were dominated by inflow.3)The land use change in central cities had significant regional driving effects throughout the period.4)The gravity c

关 键 词：土地利用 遥感 黄河流域 土地利用/土地覆被变化 时空格局 弦图 重心迁移模型 

分 类 号：F301.24[经济管理—产业经济]