Identification of Priority Areas for Integrated Management of Semiarid Watersheds in the Ecuadorian Andes

Arteaga, Juan; Ochoa, Pablo A.; Fries, Andreas; Boll, Jan

doi:10.1111/1752-1688.12837

Cited by 12 publications

(10 citation statements)

References 54 publications

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“…Furthermore, the volume of pesticides sold in agricultural stores by canton is lowest for Quilanga and Gonzanamá. For Quilanga, the low level of pesticide use was due to a preponderance of organically produced coffee in the region (Ochoa et al, 2017), whereas agriculture in the Gonzanamá canton focuses on livestock with the largest areas of the canton being grassland, tropical dry forest, and tropical humid forest (Arteaga et al, 2020). Pesticide use by canton is also limited by socioeconomic factors (Correa-Quezada et al, 2018).…”

Section: Pesticide Sales By Cantonmentioning

confidence: 99%

A potential pesticides exposure index (PPEI) for developing countries: Applied in a transboundary basin

Ochoa-Cueva

Arteaga

Arévalo

et al. 2021

Integr Envir Assess & Manag

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The potential risk of pesticide exposure in developing countries needs further study as data are limited and simple tools to assess the risks on human health and the environment caused by pesticides are lacking. This article introduces a potential pesticides exposure index (PPEI) as a modeling tool to assess the risk of human and environmental pesticide exposure in agricultural basins. The PPEI is based on a number of factors including: human population centers and their proximity to agricultural crops, the toxicological properties of pesticides, and their application frequency. The index was applied to a region in southern Ecuador (approximately 7200 km 2 ) where corn, rice, and sugarcane are the predominant crops, and where hot spots with the highest vulnerability to pesticide residues were identified. Of the total of 5326 neighborhoods for the entire study area, 1030 had high, 1124 had medium, and 1009 had low PPEI scores. Among the practical uses of PPEI are to help to assist regulatory agencies and academics evaluate the effects of land use policies on pesticide vulnerability. Also, it can be easily expanded to include other parameters, such as data from other agricultural crops, or frequency of pesticide application. The PPEI can be a valuable indicator of risk of pesticide exposure, as it is reliable and applicable to developing countries, where data and resources are limited.

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Section: Pesticide Sales By Cantonmentioning

confidence: 99%

A potential pesticides exposure index (PPEI) for developing countries: Applied in a transboundary basin

Ochoa-Cueva

Arteaga

Arévalo

et al. 2021

Integr Envir Assess & Manag

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“…The morphometric analysis of drainage basins helps to comprehend aspects of linear, areal, and relief parameters. These parameters have been used by geomorphologists to study runoff, morpho/neotectonics, flash floods [31,32], soil erosion [33], groundwater potential [34], watershed prioritization [35][36][37][38], check dam positioning, etc [13,[39][40][41][42][43][44][45][46][47]. Watershed prioritization has become important in identifying and prioritize the regions which would require treatment for water and soil conservations practices.…”

Section: Introductionmentioning

confidence: 99%

Prioritizing Watershed Restoration, Management, and Development Based on Geo-Morphometric Analysis in Asir Region of Saudi Arabia Using Geospatial Technology

Mallick¹,

Shivhare²,

Singh³

et al. 2022

Pol. J. Environ. Stud.

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The groundwater resource in the Kingdom of Saudi Arabia is a non-renewable resource. Geographical information system and remote sensing are proven to be an efficient tool for locating water harvesting and recharge structures by prioritization of sub-watersheds through morphometric analysis. In this study, the watershed prioritization in Asir Province has been assessed by linear, aerial, and relief morphometric parameters. Morphometric analysis has been attempted to prioritize a total of eleven subwatersheds, of which six sub-watersheds in Tathlith Wadi and five sub-watersheds in Bisha Wadi were delineated using digital elevation model (DEM). Advanced space-borne thermal emission and reflection radiometer of 30m resolution DEM has used to generate drainage networks and delineation of subwatersheds using ArcGIS software. The important derived morphometric parameters have computed on the base of already developed mathematical formulae and methods. A novel and quantitative approach based on the compound parameter by using linear and shape parameters of the respective sub-watershed was attempted for its prioritization. The total area of sub-watershed in Wadi Bisha, which lies under high, medium, and low priority is approximately 40%, 20% and 40% respectively. whereas in Wadi Tathlith, the area under high and medium priority is 67% and 33%. The watersheds BSW2 and BSW4 in Wadi Bisha and TSW1, TSW2, TSW3, and TSW5 in Wadi Tathlith would require immediate intervention and efficient action plan for water and soil conservation. The interrelationship between the various morphometric factors of the basin has been studied using a correlation matrix. Further, morphometric factors have been studied in relation to the sub-basins to understand the existing relation between the factors and the sub-basins. The prioritized watersheds were validated using the

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“…Latin America has large reserves of fresh water in its territory, as it concentrates 31% of the planet's sources. However, over many significant supply areas exist conflicts between stakeholders, so, water resources sustainable exploitation turns difficult, situation related to several investigators [2,13,14]. Consequently, the use of different methods and instruments that facilitate a coordinated management has increased.…”

Section: Introductionmentioning

confidence: 99%

“…Special attention must be paid to developing approaches for water management among stakeholders and decision-makers. Through guiding actions that channel safeguarding hydrological services and seeking to improve the living conditions of communities located within the hydrographic basin [14,19]. The policies must be linked with the study and monitoring of natural resources as an aid to decision-making [11].…”

Section: Introductionmentioning

confidence: 99%

Territorial Prospective to Sustainability: Strategies for Future Successful of Water Resource Management on Andean Basins

Mera-Parra

Massa-Sánchez

Oñate-Valdivieso

et al. 2022

Land

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In Latin America, water resource management in some areas is difficult when all parts of a system are not considered (including its dynamism). Therefore, it becomes necessary to prepare instruments that facilitate management using a comprehensive approach. This study aimed to develop a methodology that allows one to conduct a prospective analysis of water management over delimited territories. The Zamora Huayco basin was chosen as the study area. This work included a survey of physical-natural, socioeconomic, and political-institutional variables, as well as a system structural analysis. Also, the generation of future scenarios and the strategic and tactical orientation for the integrated management of water resources. The results show that, of the 23 variables used, 19 were classified as key system variables. Most of the variables had strong impacts on each other, but at the same time these were highly receptive to changes. The behavior of change, proposed for the different uses and land cover in the basin for 2029, was considered as the objective scenario, highlighting the gain in forest areas and shrub vegetation. The strategic plans proposed in this methodology consider the structuring and collecting information in a single repository, creating communication channels between stakeholders and decision-makers.

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Identification of Priority Areas for Integrated Management of Semiarid Watersheds in the Ecuadorian Andes

Cited by 12 publications

References 54 publications

A potential pesticides exposure index (PPEI) for developing countries: Applied in a transboundary basin

A potential pesticides exposure index (PPEI) for developing countries: Applied in a transboundary basin

Prioritizing Watershed Restoration, Management, and Development Based on Geo-Morphometric Analysis in Asir Region of Saudi Arabia Using Geospatial Technology

Territorial Prospective to Sustainability: Strategies for Future Successful of Water Resource Management on Andean Basins

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