LA SANGRE TRANSPORTA NUTRIENTES Y LOS RÍOS SEDIMENTOS, NO LE ESTAMOS PREGUNTANDO AL RÍO SI NOS PUEDE DONAR SUS SEDIMENTOS

The document highlights the critical role of sediment transport in maintaining the Andean-Amazonian ecosystem and proposes a differentiated monitoring methodology to mitigate the impacts of anthropogenic activities and climate change. It details how infrastructure like hydroelectric dams and dredging can disrupt sediment balance, citing specific cases in Peru and Ecuador, and advocates for integrating sediment monitoring into national public policy and climate adaptation strategies.

• Amazonian rivers are the largest continental source of sediment on Earth, providing essential nutrients to the Amazonian plain and maintaining the Andean-Amazonian geoclimatic system.
• Sediment transport is categorized into three types: wash load (fine particles like clay and silt that maintain biodiversity and disperse seeds), suspended bed load (sands that interact with the riverbed), and bed load (mass movement of sediments on the river bottom, such as dunes).
• Measurements conducted between 2017 and 2019 in the Ucayali River showed that over 70% of the material consists of fine sediments (wash load), 15% to 30% is coarse material (suspended bed load), and only 1% to 3% is bed load.
• Anthropogenic infrastructure can severely disrupt sediment balance: water intake structures affect wash load, hydroelectric dams cause sediment accumulation in reservoirs and downstream erosion, and dredging for waterways removes bed sediments without full understanding of river behavior.
• The Coca Codo Sinclair hydroelectric plant in Ecuador is linked by some specialists to the collapse of the San Rafael waterfall and subsequent regressive erosion, which has modified river sedimentograms and threatened local populations and infrastructure.
• The Chaglla hydroelectric plant in Peru lacks bottom discharge structures, leading to sediment accumulation in the reservoir, loss of storage capacity, and imbalances in river morphology and biodiversity.
• The proposed monitoring methodology consists of three complementary units: the Hydrodynamic Unit (water velocity and liquid flow), the Hydrosedimentological Unit (concentration and granulometry of sediments), and the Hydrogeomorphological Unit (riverbed characterization and dune statistics).
• The document proposes that Senamhi lead the implementation of sediment monitoring as a climate change adaptation measure, integrating it into national determined contributions and sectoral policies for energy and transport.

APA

Guerrero, L., Villena, D., Estrada, Y., & Barreto, D. (n.d.). LA SANGRE TRANSPORTA NUTRIENTES Y LOS RÍOS SEDIMENTOS, NO LE ESTAMOS PREGUNTANDO AL RÍO SI NOS PUEDE DONAR SUS SEDIMENTOS. Climate and Development Knowledge Network. https://cdkn.org/sites/default/files/files/Monitoreo-de-sedimentos_policy-brief_vf.pdf

Chicago

Guerrero, Leo, Domenica Villena, Yulissa Estrada, and David Barreto. LA SANGRE TRANSPORTA NUTRIENTES Y LOS RÍOS SEDIMENTOS, NO LE ESTAMOS PREGUNTANDO AL RÍO SI NOS PUEDE DONAR SUS SEDIMENTOS. Climate and Development Knowledge Network, n.d. https://cdkn.org/sites/default/files/files/Monitoreo-de-sedimentos_policy-brief_vf.pdf.

Wikipedia

{{cite report |last1=Guerrero |first1=Leo |last2=Villena |first2=Domenica |last3=Estrada |first3=Yulissa |last4=Barreto |first4=David |title=LA SANGRE TRANSPORTA NUTRIENTES Y LOS RÍOS SEDIMENTOS, NO LE ESTAMOS PREGUNTANDO AL RÍO SI NOS PUEDE DONAR SUS SEDIMENTOS |publisher=Climate and Development Knowledge Network |url=https://cdkn.org/sites/default/files/files/Monitoreo-de-sedimentos_policy-brief_vf.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{guerrerondsangre, author = {Guerrero, Leo and Villena, Domenica and Estrada, Yulissa and Barreto, David}, title = {{LA SANGRE TRANSPORTA NUTRIENTES Y LOS RÍOS SEDIMENTOS, NO LE ESTAMOS PREGUNTANDO AL RÍO SI NOS PUEDE DONAR SUS SEDIMENTOS}}, institution = {Climate and Development Knowledge Network}, url = {https://cdkn.org/sites/default/files/files/Monitoreo-de-sedimentos_policy-brief_vf.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }