Water production in a Brazilian montane rainforest: Implications for water resources management

Mattos, Jonatas Batista; Santos, Débora Alves; Filho, Cézar Augusto Teixeira Falcão; Santos, Tailane Jesus; Santos, Maiquele Gama dos; Paula, Francisco Carlos Fernandes De

doi:10.1016/j.envsci.2018.03.004

Cited by 16 publications

(6 citation statements)

References 42 publications

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“…In particular, they promote economic demand management mechanisms that proved successful in arid regions, like the water pricing incentives set during the 2013-2015 water crisis yet abandoned once the critical period was over, or water rights trade and adaptation for less thirsty and higher added value crops implemented in Brazil's northeastern state Ceara. Other authors also encourage moving towards local solutions and rainwater harvest [30,72,73] or catchment protection options [74][75][76]. All agree that, in a changing environment, there is a need for water authorities and its population to raise awareness about limited freshwater resources.…”

Section: Coping With the Risk Of Water Crisismentioning

confidence: 99%

Water Supply Basins of São Paulo Metropolitan Region: Hydro-Climatic Characteristics of the 2013–2015 Water Crisis

Milano

Reynard

Miranda

et al. 2018

Water

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São Paulo metropolitan region experienced an acute water crisis between 2013 and 2015. According to the Brazilian and international press, it was due to climatic, anthropogenic, and water management factors. This paper assesses the hydro-climatic characteristics of the crisis by focusing on the Alto-Tietê basin and the headwater of the Piracicaba-Capivari-Jundiaí (PCJ) basin that supply 70% of the water consumed in the metropolis. Based on 16 rain-gauge stations, 5 runoff-gauge stations, and several statistical analyses carried over the 1951-2015 period, this assessment shows that the 2013-2015 hydro-climatic crisis resulted from a large number of days without rain in the north of the Alto-Tietê basin and to less intense precipitation events in the headwaters of the PCJ basin during the austral spring 2013 and the year 2014. It also defines a return period of 98 years for observed river flows in 2014. Despite the rare nature of this hydrological drought, the need for efficient water saving policies is brought forward.

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Section: Coping With the Risk Of Water Crisismentioning

confidence: 99%

Water Supply Basins of São Paulo Metropolitan Region: Hydro-Climatic Characteristics of the 2013–2015 Water Crisis

Milano

Reynard

Miranda

et al. 2018

Water

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“…These seven major river basins cover around 64 percent of the country's total land area. Based on precipitation, temperature, altitude, vegetation index and geomorphological conditions, the land territory of China were divided into eleven ecoregions [29]: the Northeast China (1), Northwest arid area (2), Inner Mongolia plateau (3), Qinghai-Tibet Plateau (4), the Loess Plateau (5), the northern China (6), the Hengduan Mountains (7), the Sichuan and Chongqing region (8), the Middle and lower reaches of the Yangtze River (9), the Yunan-Guizhou Plateau (10) and the South China (11) (Figure 1).…”

Section: Study Areamentioning

confidence: 99%

“…To best inform the decision-making and implementation of these national policies, there is a pressing need to develop ES mapping models that are both easy-to-use and scientifically credible across spatial scales. However, most current WP mapping approaches are based on complex hydrologic process models, which require very detailed model parameters, fine-scale data, and complicated calibration processes [10][11][12][13]. Although hydrologic process models are well accepted by scholars and the accuracy of model results is relatively higher than the simplified models, it is still challenging to apply these models to large-scale research because of model adaptations and data accessibility.…”

Section: Introductionmentioning

confidence: 99%

The NPP-Based Composite Indicator for Assessing the Variations of Water Provision Services at the National Scale

Zheng

Zhang

Wang

et al. 2019

Water

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Water provision (WP) is an important service of the terrestrial ecosystem, which contributes to water availability for consumptive use and in situ water supply, sustains the production or flows of multiple ecosystem services (ES). Spatially explicit mapping of WP is critical for incorporating the ES concept into the decision-making processes of land-use and ecological conservation planning. Traditionally, regional complexes hydrological process models were simplified and used for mapping WP of the ecosystem at broad scales, but this approach is significantly limited by data accessibility and difficulty validating the results. To fill the gap, an NPP-based composite indicator model that simulates WP by multiplying NPP and its variations with the soil infiltration capacity factor, annual precipitation and the slope of the land surface is proposed in this paper. These parameters are chosen to map WP because they are closely related to hydrological processes. The model results were validated using observed runoff data of the eleven river basins in China. We then applied this approach to analyze the spatiotemporal changes of WP in China from 2000 to 2013. The results show that: (1) the average value of WP was lowest in the Northwest Arid Area ecoregions while the highest value of WP was in the South China ecoregion. (2) The linear trend of WP in the Loess Plateau and Hengduan Mountains ecoregions were increased while decreased in the other nine ecoregions. (3) The WP in the north of the Qinghai-Tibet Plateau presented a significant decrease trend mostly because the land cover change (e.g., grassland convert into dessert) and decreasing precipitation; the decreasing of the WP in Yunan-Guizhou Plateau are because the farmland convert into settlement land and the significant decrease of precipitation and significantly increase of temperature; the significant increase of the WP in Northeast China are because the increasing of forest and farmland, the grassland and wetland convert into farmland and forest, and the significant decrease of temperature and increase of precipitation; Although the increase of precipitation has played an important role in promoting WP, the significant increase of WP in the Loess Plateau was mainly due to the farmland convert into forest and grassland ecosystem types. The indicator explored by this research is benefiting for revealing the variations of WP under different land-use change and climate change, and informed the decision-making process of land-use policy or conservation planning at data-scarce regions or broaden spatial scales.

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“…Freshwater is the most important, limited and vulnerable natural resource [1,2]. Water supply is the key to civilization and offers opportunities for development in a certain geographical area.…”

Section: Introductionmentioning

confidence: 99%

Database with pollution sources and impact assessment in Bega and Timis River basins

Neidoni¹,

Nicorescu²,

Andres³

et al. 2021

RJEEC

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This paper presents the ecological state of large areas of the Bega and Timis River basins, evaluated based on physical-chemical parameters of water samples in relation to the anthropogenic sources of pollution that occur along these rivers. For the monitoring program, twelve sampling points on the Bega and ten sampling points on the Timis were established in order to determine surface water quality. The potential sources of pollution were highlighted by a downstream vs. upstream analysis. Ecological conditions have been assessed taking into account the national legislation, which transposes the Water Framework Directive on promoting the sustainable use of water based on the long-term protection of water resources. The main sources of pollution were related to the discharges from localities and industry, but the current ecological status of the two water bodies analyzed is in a relatively good state.

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Water production in a Brazilian montane rainforest: Implications for water resources management

Cited by 16 publications

References 42 publications

Water Supply Basins of São Paulo Metropolitan Region: Hydro-Climatic Characteristics of the 2013–2015 Water Crisis

Water Supply Basins of São Paulo Metropolitan Region: Hydro-Climatic Characteristics of the 2013–2015 Water Crisis

The NPP-Based Composite Indicator for Assessing the Variations of Water Provision Services at the National Scale

Database with pollution sources and impact assessment in Bega and Timis River basins

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