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CAPTURING AND ANALYSING HETEROGENEITY IN RESIDENTIAL GREYWATER REUSE PREFERENCES USING A LATENT CLASS MODEL

Año: 2020
Categoría: Hidrología, Recursos hídricos

Título publicación

CAPTURING AND ANALYSING HETEROGENEITY IN RESIDENTIAL GREYWATER REUSE PREFERENCES USING A LATENT CLASS MODEL

Autores: Gloria Amaris, Jorge Gironás, Stephane Hess, Juan de Dios Ortúzar.

 

Libro: Capturing and analysing heterogeneity in residential greywater reuse preferences using a latent class model (2020).

Link a la Publicación

Abstract

To legally permit greywater reuse as a management strategy, it is necessary to establish allowed uses, as well as guarantee legitimacy, safety and maintain public trust. Cities with previous experience in greywater reuse have reconfigured their regulations according to their own evidence with decentralized water reuse systems. This has allowed them to encourage or restrict certain indoor uses of treated greywater. However, cities starting to use these residential schemes lack the experience to reconfigure their water and sanitation regulation, and thus need “blindly” decide on the type of greywater uses to allow in order to achieve a balance between users’ acceptability and avoiding public health problems.

ASSESSING RESERVOIR PERFORMANCE UNDER CLIMATE CHANGE. WHEN IS IT GOING TO BE TOO LATE IF CURRENT WATER MANAGEMENT IS NOT CHANGED?

Año: 2020
Categoría: Hidrología, Recursos hídricos

Título publicación

ASSESSING RESERVOIR PERFORMANCE UNDER CLIMATE CHANGE. WHEN IS IT GOING TO BE TOO LATE IF CURRENT WATER MANAGEMENT IS NOT CHANGED?

Autores: Cristián Chadwick, Jorge Gironás, Pilar Barría, Sebastián Vicuña and Francisco Meza.

 

Libro: Assessing reservoir performance under climate change. When is it going to be too late if current water management is not changed? (2020).

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Abstract

Climate change is modifying the way we design and operate water infrastructure, including reservoirs. A particular issue is that current infrastructure and reservoir management rules will likely operate under changing conditions different to those used in their design. Thus, there is a big need to identify the obsolescence of current operation rules under climate change, without compromising the proper treatment of uncertainty.

SOLID SHELTER TUBES ALLEVIATE SUMMER STRESSES DURING OUTPLANTING IN DROUGHT‑TOLERANT SPECIES OF MEDITERRANEAN FORESTS.

Año: 2021
Categoría: Biodiversidad, Conservación, Mitigación

Título publicación

SOLID SHELTER TUBES ALLEVIATE SUMMER STRESSES DURING OUTPLANTING IN DROUGHT‑TOLERANT SPECIES OF MEDITERRANEAN FORESTS.

Autores: Nadia Rojas‑Arévalo, Juan F. Ovalle, Juan A. Oliet, Frida I. Piper, Patricio Valenzuela, Rosanna Ginocchio, Eduardo C. Arellano.

 

Libro: Solid shelter tubes alleviate summer stresses during outplanting in drought‑tolerant species of Mediterranean forests. (2021).

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Abstract

The effect of shelter tubes on plant performance has been widely studied. Although, the role of shelter tubes in alleviating the effects of drought and high-irradiance stresses during seedling establishment has been less studied than its effect on survival. The present study compares the effects of shelter tubes with different light transmissivities (Lt) on survival and morpho-physiological responses of two coexisting tree species (drought-tolerant Quillaja saponaria and relatively more drought-sensitive Maytenus boaria) of the Chilean matorral during an exceptionally dry and warm growing season (2014–2015).

RESTORATION AND CONSERVATION OF PRIORITY AREAS OF CAATINGA’S SEMI-ARID FOREST REMNANTS CAN SUPPORT CONNECTIVITY WITHIN AN AGRICULTURAL LANDSCAPE

Año: 2021
Categoría: Agricultura, Conservación, Uso de suelos

Título publicación

RESTORATION AND CONSERVATION OF PRIORITY AREAS OF CAATINGA’S SEMI-ARID FOREST REMNANTS CAN SUPPORT CONNECTIVITY WITHIN AN AGRICULTURAL LANDSCAPE

Autores: Andrés A. Salazar, Eduardo C. Arellano, Andrés Muñoz-Sáez, Marcelo D. Miranda, Fabiana Oliveira da Silva, Natalia B. Zielonka, Liam P. Crowther, Vinina Silva-Ferreira, Patricia Oliveira-Reboucas, Lynn V. Dicks.

 

Libro: Restoration And Conservation Of Priority Areas Of Caatinga’s Semi-Arid Forest Remnants Can Support Connectivity Within An Agricultural Landscape. (2021)

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Abstract

Land-use and land-cover (LULC) changes are major drivers of biodiversity loss in semi-arid regions, such as the Caatinga biome located in the Northeast of Brazil. We investigated landscape dynamics and fragmentation in an area of the São Francisco Valley in the Brazilian Caatinga biome and measured the effect of these dynamics on ecological, functional and structural connectivity over a 33-year period (1985–2018). We calculated landscape connectivity indices based on graph theory to quantify the effect of further agricultural expansion on ecological connectivity at the landscape scale. We used a multicriteria decision analysis that integrates graph-based connectivity indices at the habitat patch scale, combined with an index of human disturbance to identify patches that, if conserved and restored, preserve the connectivity of the landscape most effectively. In the period studied, agriculture increased at a rate of 2104 ha/year, while native Caatinga vegetation decreased at a rate of 5203 ha/year.

FROM MATHEMATICAL MODELS TO POLICY DESIGN: PREDICTING GREYWATER REUSE SCHEME EFFECTIVENESS AND WATER RECLAMATION BENEFITS BASED ON INDIVIDUALS’ PREFERENCES

Año: 2021
Categoría: Eficiencia Riego, Recursos hídricos

Título publicación

FROM MATHEMATICAL MODELS TO POLICY DESIGN: PREDICTING GREYWATER REUSE SCHEME EFFECTIVENESS AND WATER RECLAMATION BENEFITS BASED ON INDIVIDUALS’ PREFERENCES

Autores: Gloria Amaris, Richard Dawson B, Jorge Gironás C, Stephane Hess D, Juan de Dios Ortúzar E.

 

Libro: From mathematical models to policy design: Predicting greywater reuse scheme effectiveness and water reclamation benefits based on individuals’ preferences (2021).

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Abstract

The residential reuse of greywater has attracted interest in recent years as a strategy to face water security problems. Nowadays, some cities such as Santiago de Chile are seeking to promote new laws that allow residential
greywater reuse and make the incorporation of the necessary infrastructure (machinery and a parallel pipe system) mandatory for new buildings. The success of any such schemes, in terms of the amount of mains water that can be saved, is clearly influenced by the decision that individual consumers make on whether or not to use the parallel system, as they will also be the ones to face the potential externalities produced by the system (e.g., odours, noise from technology).

PROTECCIÓN COSTERO-MARINA EN LA PATAGONIA CHILENA: SITUACIÓN PRESENTE, AVANCES Y DESAFÍOS

Año: 2020
Categoría: Biodiversidad, Conservación, Mitigación

Título publicación

PROTECCIÓN COSTERO-MARINA EN LA PATAGONIA CHILENA: SITUACIÓN PRESENTE, AVANCES Y DESAFÍOS

Autores: J. C. Castilla, J. J. Armesto, M . J. Martínez-Harms

Libro: Conservación en la Patagonia chilena: evaluación del conocimiento, oportunidades y desafíos. (2021) 

Programa Austral Patagonia

Abstract

La Patagonia chilena representa hoy una oportunidad única a nivel nacional y mundial de generar un sistema integrado de protección costero-marina de gran valor para la conservación de la biodiversidad y para la sociedad. Con el objetivo de conocer los avances y desafíos en la materia, se describe la evolución, situación actual y las principales características geográficas de las figuras de protección costero-marina. Actualmente, la cobertura de Áreas Marinas Protegidas decretadas, excluyendo las que forman parte del Sistema Nacional de Áreas Silvestres Protegidas del Estado (SNASPE), es de 11.218 km2 (6% de la zona costero-marina patagónica). 

UNA VISIÓN INTEGRADA DE CONSERVACIÓN PARA LA PATAGONIA CHILENA

Año: 2020
Categoría: Biodiversidad, Mitigación, Medio Ambiente

Título publicación

UNA VISIÓN INTEGRADA DE CONSERVACIÓN PARA LA PATAGONIA CHILENA

Autores: J. C. Castilla, J. J. Armesto, M . J. Martínez-Harms.

Libro: Conservación en la Patagonia chilena: evaluación del conocimiento, oportunidades y desafíos. (2021).

Programa Austral Patagonia

Abstract

Los grandes territorios y maritorios de la Patagonia chilena se destacan a nivel global por su alta proporción de áreas protegidas, cerca del 55% del área terrestre y, en términos legales, cerca de 41% de los espacios marinos, aunque parte del reconocimiento y gestión de estos últimos es aún incipiente. También son notables sus parajes remotos de islas y montañas, profusos en atractivos para la recreación y el turismo basado en la naturaleza, junto al alto endemismo de su biota. Los capítulos de este libro documentan los impactos más recientes de la influencia humana (e.g., cambio climático, introducción especies exóticas invasoras, crecimiento del turismo, expansión de la salmonicultura) sobre los ecosistemas patagónicos y resaltan la necesidad de proteger sus excepcionales valores para la conservación regional y mundial. Ante el creciente interés científico por la Patagonia chilena en las últimas décadas, este capítulo resume, a 

Understanding the preferences for different types of urban greywater uses and the impact of qualitative attributes

Año: 2020
Categoría: Cuencas urbanas, Recursos hídricos, Seguridad hídrica

Título publicación

Understanding the preferences for different types of urban greywater uses and the impact of qualitative attributes

Autores: Gloria Amaris, Richard Dawson, Jorge Gironás, Stephane Hess, Juan de Dios Ortúzar

Revista: Water Research 184 (2020) 116007; https://doi.org/10.3390/w12061540

link a la publicación

Abstract

Greywater reuse can allow substantial improvements in the efficiency of potable water systems. However, widespread uptake of greywater reuse depends on its acceptability by the population. Previous studies have assessed the implementation costs of greywater reuse technology, and considered its acceptability in principle. Although cost is clearly very important in terms of adopting/installing the technology, the actual perception of greywater reuse is crucial in driving the acceptability of use and the long-term success of the technology. This study uses discrete choice models to quantify, for the first time, the preferences of different socio-economic groups for greywater of different quality (colour, odour) and for different uses inside homes.

Baseline of Carbon Stocks in Pinus radiata and Eucalyptus spp. Plantations of Chile

Año: 2020
Categoría: Cambio climático, Carbono, Política pública, Desarrollo Productivo

Título publicación

Baseline of Carbon Stocks in Pinus radiata and Eucalyptus spp. Plantations of Chile

Autores: Guillermo Olmedo, Mario Guevara, Horacio Gilabert, Cristián Montes, Eduardo Arellano, Beatriz Barría-Knopf, Francisco Gárate, Pablo Mena-Quijada, Eduardo Acuña, Horacio Bown, Michael Ryan.

Revista: Forests 2020, 11(10), 1063; https://doi.org/10.3390/f11101063

link a la publicación

Abstract

Forest plantations have a large potential for carbon sequestration, playing an important role in the global carbon cycle. However, despite the large amount of research carried out worldwide, the absolute contribution of forest plantations is still incomplete for some parts of the world. To help bridge this gap, we calculated the amount of C stock in three fast growing forest species in Chile. Carbon pools in above-ground and below-ground biomass, forest floor, and soil were considered for this analysis. Across the plantation forests of Chile, carbon accumulated in the above-ground biomass was 181–212 Mg · ha−1 for Pinus radiata, 147–180 Mg · ha−1 for Eucalyptus nitens, and 95–117 Mg · ha−1 for Eucalyptus globulus (age 20–24 years for P. radiata and 10–14 years for Eucalyptus).

Assessing barriers and enablers in the institutionalization of river-basin adaptive management: evidence from the Maipo Basin, Chile

Año: 2020
Categoría: Adaptación, Cuenca del Maipo, Gestión adaptativa recursos hídricos, Recursos hídricos

Título publicación

Assessing barriers and enablers in the institutionalization of river-basin adaptive management: evidence from the Maipo Basin, Chile

Autores: Sebastián Vicuña, Christopher Scott, Sophia Borgias, Sebastián Bonelli, Eduardo Bustos

Revista: Current Opinion in Environmental Sustainability 2020, 44:93–103 - https://doi.org/10.1016/j.cosust.2020.09.003

link a la publicación

Abstract

Adaptation to global-change processes is conventionally based on assessment of human and environmental drivers and vulnerabilities. Institutionalizing adaptation involves interactive planning, implementation, and iterative evaluation of response measures and their outcomes, accompanied by adaptive-capacity enhancement. When applied in a river-basin context, adaptive management has to respond to hydroclimatic variability and uncertainty coupled with rapid growth in urban and agricultural water demands and often the deterioration of ecosystem services.

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