Spatiotemporal Variation Characteristics and Attribution Analysis of Sediment Transport in the Ganjiang River Basin

• Published in: Shui tu bao chi xue bao Vol. 39; no. 2; pp. 200 - 208
• Main Authors: YANG Chenggaoge, WANG Haipeng, TIAN Peng, TANG Chongjun, XIE Meixiang, BI Bo, ZHAO Guangju, GENG Reng, ZHOU Lu, YOU Junjian
• Format: Journal Article
• Language: Chinese
• Published: Editorial Department of Journal of Soil and Water Conservation 01.04.2025
• Subjects: ganjiang river basin; influencing factors; sediment load; sediment transport modulus; spatial and temporal variation
• ISSN: 1009-2242
• DOI: 10.13870/j.cnki.stbcxb.2025.02.019

［Objective］ The aim of this study was to investigate the spatial and temporal variation of sediment transport in the Ganjiang River Basin, and to explore the contribution of climate change and human activities to sediment changes of the basin quantitatively, in order to provide a reference for soil erosion control, water and sediment resource management. ［Methods］ Data of sediment transport monitoring and precipitation history from 1960 to 2020 at 15 main hydrological observation stations located in upper, middle and lower reaches of the Ganjiang River Basin were collected. The spatial and temporal changes of sediment transport were analyzed by the linear trend method, Mann-Kendall trend test and Pettitt mutation test were used in combination with double mass curve to quantitatively analyze the contribution of the influencing factors. ［Results］ 1) Annual sediment transport in the upper, middle and lower reaches of the Ganjiang River Basin showed a significant decreasing trend from 1960 to 2020 (|Z|>2.58). The