Role of Hydrological Studies for the Development of the TDPS System

Canedo, Claudia; Zolá, Ramiro Pillco; Berndtsson, Ronny

doi:10.3390/w8040144

Cited by 18 publications

(32 citation statements)

References 41 publications

(83 reference statements)

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“…The most common crops in the Altiplano are potatoes and quinoa (Canedo et al, 2016;Jacobsen, 2011). This is the area of the planet with the largest quinoa production.…”

Section: Study Area and Periodmentioning

confidence: 99%

“…The accuracy in the area of study of GlobeLand30 is lower than the one produced by COBUSO-2010. Zones with irrigated systems were 10 derived from (Canedo et al, 2016) where have been mapped.…”

Section: Land Cover Mapsmentioning

confidence: 99%

“…It dried out completely in December 2015 after a strong El Niño event, although flooded again and partially recovered a few months later. Several studies have investigated the Lake Poopó decline (Zola and Bengtsson, 2006;Canedo et al, 2016;Abarca-Del-Rio et al, 2012). These studies pointed at several causes undermining the lake balance: the decreasing flow discharge in the Desaguadero River, which contributes about 60% of the lake´s annual inflow (Zola and Bengtsson, 2006;Molina Carpio et al, 2014); a rapid expansion of the arable land in the catchment (Jacobsen et al, 2011;15 Satgé et al, 2017); the increased evaporation rates due to climate warming (Abarca-Del-Rio et al, 2012); the intensification of mining activities (Andreucci and Radhuber, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Mapping long-term evapotranspiration losses in the catchment of the shrinking Lake Poopó

Torres-Batlló

Martí-Cardona

Pillco-Zolá

2019

Preprint

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10Lake Poopó is located in the Andean Mountain Range Plateau or Altiplano. A generalised decline in the lake water level has been observed since 2001, coinciding roughly with an intensification of agriculture exploitations such as quinoa crops. Several factors have been blamed for the lake recession, including climate change, increased farming, mining abstractions and population growth. Being an endorheic catchment, evapotranspiration (ET) losses are expected to be the main water output 15 mechanism. This study used a time series of more than 1000 satellite data based products to map ET and vegetation index trends in the Poopó catchment between 2001 and 2014. The aim was to explore the links between ET, vegetation, land use and the lake recession. The years 2015 and 2016 were excluded of the analysis due to the strong impact of El Niño phenomenon over the study area, which could have masked long term temporal trends related to land use.We quantified the ET losses and vegetation indices for the main cover types in the Poopó catchment and their temporal trends 20 in the study period. It became obvious that cultivated areas were the ones which had experienced the largest increase in water consumption, although they were not in all instances the land covers with the largest losses. This quantification provides essential information for the sustainable planning of water resources and land uses in the catchment.We also collected on-site and satellite precipitation data. When integrated over the entire catchment, the overall ET losses showed a sustained increasing trend at an average rate of 3.2 mm yr -1 . Rainfall water inputs followed a similar trend, with a 25 slightly higher increasing rate of 5.2 mm yr -1 . Based on these results and from the point of view of the catchment water balance, the ET loss intensification derived from crop expansion has been compensated by the increase in precipitation. Consequently, this study found no clear link between the agriculture intensification and the Lake Poopó recession in the analysed period. 30 35 https://doi.

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“…The most common crops in the Altiplano are potatoes and quinoa (Canedo et al, 2016;Jacobsen, 2011). This is the area of the planet with the largest quinoa production.…”

Section: Study Area and Periodmentioning

confidence: 99%

Section: Land Cover Mapsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mapping long-term evapotranspiration losses in the catchment of the shrinking Lake Poopó

Torres-Batlló

Martí-Cardona

Pillco-Zolá

2019

Preprint

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“…The remaining 10% drains into Lake Poopo [13]. The local river discharge provides the major direct inflow [14]. The water cycle of Lake Titicaca basin is controlled by precipitation in upwind Amazonia [10].…”

Section: Main Aim Of This Review Papermentioning

confidence: 99%

Essentials of Endorheic Basins and Lakes: A Review in the Context of Current and Future Water Resource Management and Mitigation Activities in Central Asia

Yapiyev

Sagin

Inglezakis

et al. 2017

Water

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Abstract:Endorheic basins (i.e., land-locked drainage networks) and their lakes can be highly sensitive to variations in climate and adverse anthropogenic activities, such as overexploitation of water resources. In this review paper, we provide a brief overview of one major endorheic basin on each continent, plus a number of endorheic basins in Central Asia (CA), a region where a large proportion of the land area is within this type of basin. We summarize the effects of (changing) climate drivers and land surface-atmosphere feedbacks on the water balance. For the CA region, we also discuss key anthropogenic activities, related water management approaches and their complex relationship with political and policy issues. In CA a substantial increase in irrigated agriculture coupled with negative climate change impacts have disrupted the fragile water balance for many endorheic basins and their lakes. Transboundary integrated land and water management approaches must be developed to facilitate adequate climate change adaptation and possible mitigation of the adverse anthropogenic influence on endorheic basins in CA. Suitable climate adaptation, mitigation and efficient natural resource management technologies and methods are available, and are developing fast. A number of these are discussed in the paper, but these technologies alone are not sufficient to address pressing water resource issues in CA. Food-water-energy nexus analyses demonstrate that transboundary endorheic basin management requires transformational changes with involvement of all key stakeholders. Regional programs, supported by local governments and international donors, which incorporate advanced adaptation technologies, water resource research and management capacity development, are essential for successful climate change adaptation efforts in CA. However, there is a need for an accelerated uptake of such programs, with an emphasis on unification of approaches, as the pressures resulting from climate change and aggravated by human mismanagement of natural water resources leave very little time for hesitation.

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“…The lake plays an essential role in shaping the semiarid Altiplano climate and feeds the downstream Desaguadero River and Lake Poopó (Pillco & Bengtsson, 2006;Abarca-del-Río et al, 2012); thus supplying the inhabitants with water resources for domestic, agricultural, and industrial use (Revollo, 2001). Anthropogenic pressure on the Altiplano water resources has increased during the last decades due to population growth and increased irrigated land (FAO, 2005;Canedo et al, 2016;Satgé et al, 2017), as well as due to industrial 30 pollution (UNEP, 1996;CMLT, 2014). Revollo (2001) pointed out that the maximum surplus of the Lake Titicaca to supply downstream users was dramatically lower than the estimated demand.…”

Section: Introductionmentioning

confidence: 99%

1-Modeling Lake Titicaca Daily and Monthly Evaporation

Zolá¹

2018

Preprint

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Lake Titicaca is an important water ecosystem of South America. Due to uncertainties in estimating the evaporation losses from the lake, surface water storage calculations are uncertain. In this paper, we try to improve evaporation loss estimations by comparing different methods to calculate daily and monthly evaporation from Lake Titicaca. 15These were: water balance, heat balance, mass transfer method, and the Penman equation. The evaporation was computed at daily time step and compared with estimated evaporation using mean monthly meteorological observations. We found that the most reliable method of determining the annual lake evaporation is using the heat balance approach. To estimate the monthly lake evaporation using heat balance, the heat storage changes must be known in advance. Since convection from the surface layer is intense during nights resulting in a well-mixed top layer every morning, it is possible to determine the 20 change of heat storage from the measured morning surface temperature. The mean annual lake evaporation was found to be 1700 mm. Monthly evaporation computed using daily data and monthly means resulted in minor differences.

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Role of Hydrological Studies for the Development of the TDPS System

Cited by 18 publications

References 41 publications

Mapping long-term evapotranspiration losses in the catchment of the shrinking Lake Poopó

Mapping long-term evapotranspiration losses in the catchment of the shrinking Lake Poopó

Essentials of Endorheic Basins and Lakes: A Review in the Context of Current and Future Water Resource Management and Mitigation Activities in Central Asia

1-Modeling Lake Titicaca Daily and Monthly Evaporation

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