Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Май 8, 2025

ABSTRACT Understanding the spatiotemporal evolution and attribution of streamflow is critical for effective water resource management climate security. This study conducts a comprehensive analysis runoff dynamics across multiple temporal scales in Huaihe River basin, which major hydrological region China. By examining annual, interannual, interdecadal trends, research delineates tendencies, abrupt changes, periodicity patterns. The double mass curve (DMC) method applied to quantify variations, incorporating influences vegetation dynamics, anthropogenic withdrawals, change. results reveal highly uneven annual distribution basin. Most hydrometric stations show statistically insignificant declining trends flood‐season, non‐flood‐season runoff, except Hengpaitou section. Significant mutation points are detected around 1990 2000 all series, along with periodic fluctuations featuring dominant about 30‐year cycles. Attribution indicates that human activities account over 80% observed variations. In upper indirect factors (e.g., land use changes dynamics) dominate, whereas direct interventions have stronger influence middle reaches. These findings enhance understanding interactions between natural processes impacts on hydrology, providing scientific basis sustainable under change basin similar regions.

Язык: Английский