Source RAMSAR sites :https://rsis.ramsar.org
Source "Protected Areas" :World Database on Protected Areas (WDPA), a join project of IUCN and UNEP - March 2018
Source Dams Data Base - GRanDv1 : Lehner, B., C. Reidy Liermann, C. Revenga, C. Vorosmarty, B. Fekete, P. Crouzet, P. Doll, M. Endejan, K. Frenken, J. Magome, C. Nilsson, J.C. Robertson, R. Rodel, N. Sindorf, and D. Wisser. 2011. Global Reservoir and Dam Database, Version 1 (GRanDv1): Dams, Revision 01. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). SEDAC
Source Rainfall :WorldClim Version 2 - Mean average rainfall (mm) -period 1970-2000 resolution 5 minutes (approx 100 km2)
Source Population Data Base: Center for International Earth Science Information Network - CIESIN - Columbia University. 2017. Gridded Population of the World, Version 4 (GPWv4): Population Count, Revision 10. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC) Accessed 23 Feb 2018. These data were treated afterwards by Rivers Network to fit with river basin limits and formated for web maps purposes. The density ranking is based on the DN values from SEDAC data base.
The Nyanga ands more specifically the Moukalaba-Doudou National Park region have very diverse landscapes that alternate primary and secondary forests, grassland or dense bush savannas, rivers, ponds, swamps and raphia or papyrus forests. The Nyanga River - whose basin irrigates forests and savannas - runs through the region as well as many rivers among which the Moukalaba that runs through Doussala.