Sediment transfer at different spatial and temporal scales in the Sichuan Hilly Basin, China: Synthesizing data from multiple approaches and preliminary interpretation in the context of climatic and anthropogenic drivers

Golosov, V.; L, C.A.; Tang, Q.; Zhang, X.; Zhou, P.; He, X.; Wen, A.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 сентября 2019 г.

Авторы: Valentin Golosov, Collins Adrian L., Qiang Tang, Xinbao Zhang, Ping Zhou, Xiubin He, Anbang Wen
Журнал: Science of the Total Environment
Том: 598
Год издания: 2017
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Первая страница: 319
Последняя страница: 329
DOI: 10.1016/j.scitotenv.2017.04.133
Аннотация: Quantifying sediment production and transfer at different spatial and temporal scales in a changing environment is critical in understanding the potential effects of climatic and anthropogenic drivers. Accordingly, estimates of soil erosion and sediment production at hillslope field, first-order small catchment (< 0.25 km2) and river basin scales in the Sichuan Hilly Basin of Southwestern China, generated using a variety of techniques, including fallout radionuclide tracing, runoff plot observations, core chronology dating and conventional sediment flux monitoring, were synthesized and interpreted in the context of potential climatic and human controls. Mean annual soil erosion rates ranged from 800 Mg·km− 2·yr− 1 to 4500 Mg·km− 2·yr− 1 on the basis of fallout radionuclide tracing and from 600 Mg·km− 2·yr− 1 to 3300 Mg·km− 2·yr− 1 using runoff plot monitoring on selected cultivated hillslopes. A high slope-channel sediment delivery ratio was observed, meaning that a substantial proportion of eroded sediment was delivered into downstream drainage channels. An obvious temporal trend of decreasing sediment transfer to the river channels in the first-order catchments was identified, which may be driven by change in regional precipitation regime and the implementation of multiple soil conservation and reforestation practices over recent decades.
Добавил в систему: Голосов Валентин Николаевич

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Sediment transfer at different spatial and temporal scales in the Sichuan Hilly Basin, China: Synthesizing data from multiple approaches and preliminary interpretation in the context of climatic and anthropogenic driversстатья

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