Results 31 to 40 of about 5,660,298 (179)

Economic value of water for irrigation in São Francisco River Basin, Brazil

open access: yesApplied Water Science, 2022
Agriculture is the economic activity which uses water the most in Brazil, particularly in São Francisco River Basin, where water withdrawals for irrigation granted by water authorities amount to 22.3 billion m3 per year, a number which is close to 81% of
Pedro Lucas Cosmo de Brito   +1 more
doaj   +1 more source

Delaware River Basin Commission Annual Report 2004-2005

open access: yes, 2006
The Delaware River Basin Commission (DRBC) is an interstate/federal agency that manages the water resources within the 13,539-square-mile basin covering portions of Delaware, New Jersey, New York, and Pennsylvania.

core   +1 more source

A new old species of Tetracera (Dilleniaceae) from Espinhaço Range, Brazil

open access: yesNordic Journal of Botany, EarlyView.
Tetracera is the only genus within Dilleniaceae with a pantropical distribution. During efforts for a taxonomic revision of the neotropical species, we identified incongruences between application of names and their taxonomic identities, based on protologue and type specimen analysis. Here we describe a new species for the genus bearing a single carpel
Michelly D. F. Araújo   +3 more
wiley   +1 more source

Water Management of the Delaware River Basin: A staff compilation of planning assumptions, policies, programs, data, and a means of managing the Basin's water resources.

open access: yes, 1975
The adoption of the Delaware River Basin Compact in 1961 made possible the joint exercise of sovereign powers over the water resources of the Delaware River Basin in the common interest of the people of the region.

core   +1 more source

Performance of water usage charge in the Nation’s domain as a water resource management tool in the São Francisco River basin

open access: yesRBRH
The present work consists in a study on the performance of usage charge as a management tool in the São Francisco River Basin in the period between 2010 and 2013, according to the objectives defined by the law 9.433/97.
Leonardo Henrique Andrade Vera   +2 more
doaj   +1 more source

Two new endemic species of Portulaca (Portulacaceae) from the Brazilian Pampa grasslands

open access: yesNordic Journal of Botany, EarlyView.
Portulaca L. is a monophyletic, cosmopolitan genus of succulent plants comprising ca 153 species, with particularly high diversity in xerophytic ecosystems in tropical and subtropical regions. Based on morphological evidence, we describe and illustrate two new species from the Brazilian Pampa, Portulaca guaritensis and Portulaca guenoa.
José Roberto Ferraz   +3 more
wiley   +1 more source

Delaware River Basin: The Final Report and Environmental Impact Statement of the Level B Study - May 1981

open access: yes, 1981
This document is the final report and environmental impact statement of the Delaware River Basin Commission's Level B Study. The objective of the study was to identify and resolve water resource problems.

core   +1 more source

DNA barcoding uncovers two putative new species in Trachelyopterus (Siluriformes: Auchenipteridae)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Trachelyopterus is a cryptic genus within the Neotropical catfish family Auchenipteridae with a complex history of taxonomic revisions. Despite the notable morphological and genetic similarities among its species, some studies suggest that the genus harbours greater diversity than is currently recognized, including additional species yet to be
Fiorindo José Cerqueira   +9 more
wiley   +1 more source

Nutrient Criteria Strategy for the Tidal and Non-Tidal Delaware River

open access: yes, 2008
The Nutrient Criteria Strategy for the Tidal and Non-Tidal Delaware River of the Delaware River Basin Commission examines nutrient criteria in great detail in order to establish new numeric criteria for water quality standards.

core   +1 more source

A poorly known case of watershed transposition between the São Francisco and upper Paraná river basins

open access: yesNeotropical Ichthyology
During construction of the Furnas hydroelectric power dam in the upper rio Paraná basin in the early 1960s, the rio Piumhi drainage outflow was diverted into the headwaters of the São Francisco river basin.
Orlando Moreira Filho   +1 more
doaj   +1 more source

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