摘要
为探究流域景观格局演变及其对水文情势的影响,以济南市小清河黄台桥以上流域为例,基于流域内1960~2020年逐年土地利用数据及实测径流资料,运用GIS、Fragstats、生态环境流量组成分析、不均匀系数等分析方法开展景观格局与水文情势的演变分析,并利用相关性分析方法探讨水文情势对流域景观格局的响应。结果表明,1960~2020年间,流域内建设用地面积急剧增加,景观斑块呈现单一化、规整化演变趋势;10个景观指标中,LPI、PLAND、CONTAG、CONNECT与3个水文情势指标关系最为密切,且均呈正相关关系,其次为PD、ED、LSI、SHAPE_AM,且呈负相关关系;城市化快速发展带来小清河流域下垫面条件的剧烈改变,其中建设用地空间集中式发展是导致流域内景观斑块和水文情势变化的主要原因。
In order to explore the evolution of the landscape pattern of the watershed and its impact on the hydrological regime,the watershed above Huangtaiqiao Station of the Xiaoqing River in Jinan City was taken as a study watershed.Based on the annual land use data and measured runoff data in the watershed from 1960 to 2020,GIS,Fragstats,and environmental flow composition analysis and uneven coefficients of flow duration curve were used to explore the response of hydrological regimes to the landscape pattern of the watershed.The results show that during 1960 and 2020,the area of building land in the watershed increased sharply,and the landscape patches showed a unified and regular evolution trend;Among the 10 landscape indicators,LPI,PLAND,CONTAG,and CONNECT have the closest relationship with three hydrological regime indicators,and all exhibit a positive correlation;Following them are PD,ED,LSI,and SHAPE_AM,which show a negative correlation;The rapid development of urbanization has brought about drastic changes in the underlying surface conditions of the study watershed,among which the increase in building land is the main reasons leading to changes in the hydrological regime and landscape pattern in the watershed.
作者
马晓洪
李占华
钱秀红
白露
游瑞峰
刘阳
MA Xiao-hong;LI Zhan-hua;QIAN Xiu-hong;BAI Lu;YOU Rui-feng;LIU Yang(Shandong Provincial Water Conservancy Management Service Center of Haihe-Huaihe-Xiaoqing River Basin,Jinan 250000,China;School of Civil Engineering,Shandong University,Jinan 250061,China;School of Water Conservancy and Environment,University of Jinan,Jinan 250022,China)
出处
《水电能源科学》
北大核心
2024年第7期6-11,共6页
Water Resources and Power
基金
水文水资源与水利工程科学国家重点实验室“一带一路”水与可持续发展科技基金(2021nkms02)
国家自然科学基金青年基金项目(42301046)。
关键词
景观格局
水文情势
相关性分析
小清河流域
landscape pattern
hydrological regime
correlation analysis
Xiaoqing River Watershed
