WATER: THE URGENCY OF A TERRITORIAL AGENDA

ABSTRACT This paper presents and discusses the water supply crisis and the resulting risk of rationing in regional scale in the Brazilian Southeast (2014/15). Considering the extension, magnitude and intensity of this crisis, particularly in São Paulo metropolitan areas and throughout Paraíba do Sul river, it is argued that new spatialities are emerging and imposing adjustments to water management. According to this paper, the latter is a question of geo-institutional nature. It is not possible to understand the water supply crisis and emergency actions as exclusively related to flow control and reduction. From this understanding comes the urgency of a territorial agenda, that is, one that considers the relations between different spaces, diverse agents, and the environmental history itself in Paraíba do Sul river basin.

Download Full-text

Zooplankton community of sand pits of Paraiba do Sul River basin, São Paulo, Brazil

SIL Proceedings 1922-2010 ◽

10.1080/03680770.1995.11900983 ◽

1998 ◽

Vol 26 (4) ◽

pp. 1524-1528

Author(s):

Maria Aparecida Juliano de Carvalho ◽

Suzana Sendacz

Keyword(s):

River Basin ◽

Zooplankton Community ◽

Sao Paulo ◽

São Paulo ◽

Sand Pits ◽

Paraíba Do Sul River

Download Full-text

Spatial and Temporal Water Allocation in the Kissimmee River Basin

Journal of Agricultural and Applied Economics ◽

10.1017/s0081305200013583 ◽

1977 ◽

Vol 9 (1) ◽

pp. 107-113 ◽

Cited By ~ 1

Author(s):

John E. Reynolds ◽

J. Richard Conner

Keyword(s):

Water Management ◽

Water Supply ◽

River Basin ◽

Water Allocation ◽

Cooperative Effort ◽

The Public ◽

Available Water ◽

Kissimmee River ◽

Strong Competition ◽

Southern Florida

In many areas of the country, there is strong competition among agricultural, municipal, industrial and other users of water. Water managers are faced with the problem of allocating available water among alternative uses.The study [11] upon which this paper is based was a cooperative effort with the Central and Southern Florida Control District which is typical of many water management districts making decisions regarding allocation of a limited amount of water among uses and users. When the District was formed, it was developed with emphasis on facilities to provide relief from flooding. Water management responsibilities such as water supply, recreation and the preservation and enhancement of fish and wildlife have become important to the public and consequently have received recognition by those responsible for managing the water.

Download Full-text

Ichthyofauna of the Una river in the Paraíba do Sul Paulista River Valley, Southeastern of Brazil

Biota Neotropica ◽

10.1590/10.1590/1676-0611-bn-2018-0528 ◽

2018 ◽

Vol 18 (4) ◽

Cited By ~ 2

Author(s):

Juliano Rodrigues Honorio ◽

Itamar Alves Martins

Keyword(s):

River Basin ◽

New Records ◽

Sao Paulo ◽

The State ◽

River Valley ◽

São Paulo ◽

Number Of Individuals ◽

Fyke Nets ◽

Paraíba Do Sul River

Abstract: This study focus on an inventory of the ichthyofauna of the Una river, a tributary of the Paraíba do Sul river, located in the region of Paraíba do Sul River Valley, in the State of São Paulo. Sampling was carried out in three sampling areas along the channel of the Una river between April 2016 and March 2017. For the collection of fish specimens, was used angling, fyke nets, cast nets, dragnets and hand nets. A total of 1.534 specimens were collected, which corresponds to five different orders, 14 families, 26 genera and thirty species. The study revealed that the most significant number of reported species are from the orders Siluriformes and Characiformes. The Characidae family was the most representative concerning the wealth of species and Astyanax aff. bimaculatus (two spot Astyanax | lambari-do-rabo-amarelo) was the species with the highest number of individuals captured. The freshwater ichthyofauna of the Una river is composed of eight species considered allochthonous and one exotic. Of the thirty species listed in this study, five are new records for the Paraíba do Sul river basin.

Download Full-text

Rice Pest Constraints in Tropical Asia: Characterization of Injury Profiles in Relation to Production Situations

Plant Disease ◽

10.1094/pdis.2000.84.3.341 ◽

2000 ◽

Vol 84 (3) ◽

pp. 341-356 ◽

Cited By ~ 81

Author(s):

Serge Savary ◽

Laetitia Willocquet ◽

Francisco A. Elazegui ◽

Paul S. Teng ◽

Pham Van Du ◽

...

Keyword(s):

Water Management ◽

Water Supply ◽

Regional Scale ◽

Brown Spot ◽

Weather Data ◽

Multivariate Techniques ◽

Site Specific ◽

Tropical Asia ◽

Wide Range ◽

Cropping Practices

A protocol for characterizing patterns of rice cropping practices and injuries due to pathogens, insects, and weeds was developed and used in six sites in tropical Asia covering a wide range of environments where lowland rice is cultivated. The data collected in a total population of 456 individual farmers' fields were combined to site-specific weather data and analyzed using non-parametric multivariate techniques: cluster analyses with chi-square distance and correspondence analyses. The main results are: (i) patterns of cropping practices that are common across sites can be identified; (ii) conversely, injury profiles that are common across sites can be determined; (iii) patterns of cropping practices and injury profiles are strongly associated at the regional scale; (iv) weather patterns are strongly associated with patterns of cropping practices and injury profiles; (v) patterns of cropping practices and injury profiles allow for a good description of the variation in actual yield; and (vi) patterns of cropping practices and injury profiles provide a framework that accurately reflects weather variation and site diversity, and reliably accounts for variation in yield. The mean estimated yield across sites (4.12 t ha-1) corresponds to commonly cited averages in the region and indicates the potential for increased productivity with better management practices, especially an improved water supply. Injuries due to pests are secondary compared with other yield-limiting factors. Injury profiles were dominated by stem rot and sheath blight (IN1); bacterial leaf blight, plant hoppers, and leaf folder (IN2); and sheath rot, brown spot, leaf blast, and neck blast (IN3). IN1 was associated with high (mineral) fertilizer inputs, long fallow periods, low pesticide use, and good water management in (mostly) transplanted rice crops of a rice-rice rotation. IN2 was associated with direct-seeded rice crops in an intensive rice-rice rotation, where fertilizer and pesticide inputs are low and water management is poor, or where fertilizer and pesticide inputs are high and water management is adequate. IN3 corresponds to low input, labor intensive (hand weeding and transplanting) rice crops in a diverse rotation system with uncertain water supply. Weed infestation was an omnipresent constraint. This study shows the potential for developing pest management strategies that can be adapted throughout the region, rather than being site-specific.

Download Full-text

Spatial simulation of water supply service flow in Ningxia, China

10.5194/egusphere-egu2020-20894 ◽

2020 ◽

Author(s):

Jie Xu ◽

Gaodi Xie ◽

Yu Xiao ◽

Jingya Liu ◽

Keyu Qin ◽

...

Keyword(s):

Water Supply ◽

River Basin ◽

Water Conservation ◽

Arid Regions ◽

Yellow River ◽

Source Region ◽

Regional Scale ◽

Tibet Plateau ◽

Residual Water ◽

Semi Arid

Transregional Ecosystem Service (ES) flows are ubiquitous and are receiving more attention in an increasingly metacoupled world. Water has typical flow properties and is a common flow medium of Water-related Ecosystem Services (WES), such as water supply, water conservation, etc. Ningxia is in a transition zone from semi-arid to arid areas of the Yellow River basin of China. Its role in the water transfer from the Qinghai-Tibet Plateau to the downstream city and agriculture is important in allocating the scarce water resources in (semi-)arid regions. This study described the water flow process to/from Ningxia and revealed the supply-demand balance of water in Ningxia and its adjacent basins. On the grid scale, the total dynamic residual water in Ningxia from 2000 to 2015 was 2.20&#215;1012 m3~6.26&#215;1012 m3. However, there was still a dynamic water demand gap of -72.25&#215;108 m3 ~ -59.08&#215;108 m3, which could only be supplemented by manual water intake. At the regional scale, Ningxia had two sides, which was both the beneficiary of the upper Xiaheyan basin, Qingshui River - Kushui River basin, Xiaheyan - Shizuishan basin, Hexi Inland River-Shiyang River basin, Hexi Inland Rive-Hexi desert basin and internal flow area, and the supplier of the downstream Shizuishan - Hekou town, Longmen to Sanmenxia subbasin. As the benefitting district, the total net inflow water supply service in the supply area from 2000 to 2015 was 135.86&#215;108 m3 ~ 294.22&#215;108 m3, among which the non-Ningxia region in the sub-basin above the Xiaheyan basin was the main source region of water supply service in Ningxia. As the supply area, the net outflow volume of water supply service in Ningxia from 2000 to 2015 was 72.83&#215;108 m3~200.46&#215;108 m3, mainly flowing to non-Ningxia regions from Shizuishan to Hekou town. Overall, the net volume of water supply service flowing into Ningxia from 2000 to 2015 ranged from 63.03&#215;108 m3 to 93.76&#215;108 m3. This study can enhance the understanding of trans-boundary telecoupling relationship of WES in Ningxia and contribute to form a foundation for interregional management and allocation of WES in (semi-)arid regions to promote equity in sustainable regional development.

Download Full-text

Urban expansion and its impact on water security: The case of the Paraíba do Sul River Basin, São Paulo, Brazil

The Science of The Total Environment ◽

10.1016/j.scitotenv.2020.137509 ◽

2020 ◽

Vol 720 ◽

pp. 137509 ◽

Cited By ~ 4

Author(s):

Ana Carolina da Encarnação Paiva ◽

Nathália Nascimento ◽

Daniel Andres Rodriguez ◽

Javier Tomasella ◽

Felix Carriello ◽

...

Keyword(s):

River Basin ◽

Urban Expansion ◽

Water Security ◽

Sao Paulo ◽

São Paulo ◽

Paraíba Do Sul River

Download Full-text

An Analysis of Transboundary Water Resources: A Case Study of River Brahmaputra

Journal of the Institute of Engineering ◽

10.3126/jie.v7i1.2072 ◽

1970 ◽

Vol 7 (1) ◽

pp. 135-141

Author(s):

Debi Prasad Bhattarai

Keyword(s):

Water Management ◽

Water Supply ◽

River Basin ◽

Flood Control ◽

Management Strategies ◽

Integrated Approach ◽

Control Measures ◽

Brahmaputra River ◽

Transboundary Water Resources ◽

Political Boundaries

The need for water management on hydrological boundaries is mainly triggered by the growing competition for water or by the need to cooperate in an upstream downstream relation. For an institution operating on political boundaries, not coinciding with the boundaries of the river basin, it is very difficult to allocate or prioritise water or carry out flood control measures. A system of water management on political boundaries will induce the respective authorities to either monopolise the water supply sources within its area and to transfer the problem of flooding to downstream. In this article it is attempted to explore the major transboundary issues that need to be addressed in the whole Brahmaputra River basin. Sharing of resources, sharing of basic data and information and protection and preservation of ecosystem are identified as three major issues. In this context, controversial legal issues between the riparian nations in the past were also analysed which has triggered the scope for integrated approach to manage the Brahmaputra River basin. In the later part of the article, a critical analysis was made to understand the principles, approaches and instruments to address the above problems. Finally, some legal materials are presented which could be used as a basis for solving the major river basin issues.Key words: water management; diversifying water supply sources; water management strategies; NepalJournal of the Institute of Engineering, Vol. 7, No. 1, July 2009, pp. 135-141doi: 10.3126/jie.v7i1.2072

Download Full-text

Determining the location of River Dam Group based on set cover Model: A case study of Zambezi River Basin

Scientific Research and Reviews ◽

10.28933/srr-2021-03-1005 ◽

2021 ◽

pp. 122

Author(s):

Keyword(s):

Water Management ◽

Water Supply ◽

River Basin ◽

Population Distribution ◽

Set Cover ◽

Climatic Environment ◽

Management Capacity ◽

Supply Capacity ◽

Zambezi River Basin ◽

Zambezi River

Taking the Zambezi River Basin as a typical case, this paper studied the location problem of dam group. Based on the topographical and elevation maps of the Zambezi River Basin, we evaluated each region by five indicators (Water head difference elevation, Geological environment, Climatic environment, Population distribution and Biodiversity), and selected the 22 candidate dam sites. Meanwhile, the relative feasibility index of dam construction is calculated by the entropy weight-grey correlation analysis. On this basis, combined with the water management capacity of the dam, a set coverage model of dam selection is established, and the neighborhood adaptive particle swarm optimization algorithm (NAPSO) is used to solve the 12 most suitable dam sites. Comparing with the water management capacity of the original Kariba Dam, the new dams’ water storage and flood control capacity, hydroelectric power generation capacity, domestic water supply capacity and other water supply capacity have been increased by 235.92%, 250.62%, 189.66% and 223.61% respectively. Our study can provide some guidance for the site selection project of river dam group.

Download Full-text

Streamflow Reconstructions Using Tree-Ring Based Paleo Proxies for the Upper Adige River Basin (Italy)

Hydrology ◽

10.3390/hydrology9010008 ◽

2021 ◽

Vol 9 (1) ◽

pp. 8

Author(s):

Giuseppe Formetta ◽

Glenn Tootle ◽

Giacomo Bertoldi

Keyword(s):

Water Supply ◽

River Basin ◽

Tree Ring ◽

Regional Scale ◽

Coefficient Of Determination ◽

Drought Severity ◽

Annual Streamflow ◽

Supply Source ◽

Wine Production ◽

Streamflow Reconstructions

The Adige River Basin (ARB) provides a vital water supply source for varying demands including agriculture (wine production), energy (hydropower) and municipal water supply. Given the importance of this river system, information about past (paleo) drought and pluvial (wet) periods would quantity risk to water managers and planners. Annual streamflow data were obtained for four gauges that were spatially located within the upper ARB. The Old World Drought Atlas (OWDA) provides an annual June–July–August (JJA) self-calibrating Palmer Drought Severity Index (scPDSI) derived from 106 tree-ring chronologies for 5414 grid points across Europe from 0 to 2012 AD. In lieu of tree-ring chronologies, the OWDA dataset was used as a proxy to reconstruct both individual gauge and ARB regional streamflow from 0 to 2012. Principal component analysis (PCA) was applied to the four ARB streamflow gauges to generate one representative vector of regional streamflow. This regional streamflow vector was highly correlated with the four individual gauges, as coefficient of determination (R2) values ranged from 85% to 96%. Prescreening methods included correlating annual streamflow and scPDSI cells (within a 450 km radius) in which significant (p ≤ 0.01 or 99% significance) scPDSI cells were identified. The significant scPDSI cells were then evaluated for temporal stability to ensure practical and reliable reconstructions. Statistically significant and temporally stable scPDSI cells were used as predictors (independent variables) to reconstruct streamflow (predictand or dependent variable) for both individual gauges and at the regional scale. This resulted in highly skillful reconstructions of upper ARB streamflow from 0 to 2012 AD. Multiple drought and pluvial periods were identified in the paleo record that exceed those observed in the recent, historic record. Moreover, this study concurred with streamflow reconstructions in nearby European watersheds.

Download Full-text