Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/27593
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Response of terrestrial net primary productivity (NPPT) in the Wujiang catchment (China) to the construction of cascade hydropower stations
Author(s): Sun, Junyao
Hunter, Peter D
Cao, Yu
Doeser, Anna
Li, Wei
Keywords: carbon flux
dam
catchment
land use change
reservoir limnology
riparian vegetation
terrestrial net primary productivity (NPPT)
wetland ecology
Issue Date: 31-Dec-2018
Citation: Sun J, Hunter PD, Cao Y, Doeser A & Li W (2018) Response of terrestrial net primary productivity (NPPT) in the Wujiang catchment (China) to the construction of cascade hydropower stations. Inland Waters, 8 (2), pp. 239-253. https://doi.org/10.1080/20442041.2018.1442672
Abstract: The damming of rivers results in hydrological modifications that not only affect the aquatic ecosystem but also adjoining terrestrial systems. Thirteen dams commissioned along the Wujiang River have induced ecological problems, including decreased water turbidity and loss of biodiversity, which potentially influence ecosystem net primary production (NPP) and hence the sequestration, transformation, and storage of carbon. We used terrestrial NPP (NPPT) as a bioindicator to assess the impact of dams on carbon storage in the Wujiang catchment. MODIS satellite and meteorological data were used as inputs to the CASA model to calculate annual NPPT from 2000 to 2014. NPPT was calculated at the catchment and landscape scale to quantify the impact of dams on surrounding terrestrial ecosystems. Mean NPPT was calculated for concentric buffer zones covering a range of spatial extents (0–10 km) from the reservoir shoreline. We found a negligible impact from construction of a single dam on NPPT at the catchment scale. By contrast, the impact of dam construction was scale-dependent, with a stronger landscape-scale effect observed at short distances (i.e., 0–1 km) from the reservoir. Decreases in NPPT were mainly ascribed to the loss of vegetated land resulting from dam impoundment and subsequent urbanization of the surrounding area.
DOI Link: 10.1080/20442041.2018.1442672
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. This is an Accepted Manuscript of an article published by Taylor & Francis Group in Inland Waters on 16 May 2018, available online: http://www.tandfonline.com/10.1080/20442041.2018.1442672

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