Evolution of Landscape Pattern and Hydrological Regime Response:A Case Study in the Xiaoqing River in Jinan City
In order to explore the evolution of the landscape pattern of the watershed and its impact on the hydrologi-cal 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 en-vironmental 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 lead-ing to changes in the hydrological regime and landscape pattern in the watershed.
landscape patternhydrological regimecorrelation analysisXiaoqing River Watershed
NETL
NSTL
万方数据
