Planting Waterscapes

by Rachel Nisbet | 30 September 2019
Image Planting Waterscapes

This blog post introduces a technical journal article written by Castelli et al. (2017) examining how the Pirai river basin in Bolivia is managed. This catchment contains forests, woodlands, grasslands and wetlands; it is the water source for three million people, supplying the urban centre of Santa Cruz de la Sierra. One particularly useful feature of this study is its demonstration of the feedbacks between changing landscape cover in recent decades and shifting hydrological patterns. Its modelling of future hydrological scenarios for the basin, which privilege an ecosystemic approach to water management, are specifically focussed on involving local stakeholders in watershed management decisions that are designed to increase the resilience of urban and rural populations. A Soil Water Assessment Tool (SWAT) is used in a predictive model that forecasts hydrological changes in this region. Twenty years’ worth of climate data have been inputted into this modelling tool, to identify how the hydrological regime is evolving with changing land use. Significantly, the study notes that high increases in runoff are associated with zones within the catchment where forests have been cut down, as land is converted for agricultural use. To counter this trend, the study recommends that agroforestry and reforestation be included in the 'green infrastructure’ that has the potential to buffer the effects of peak river charge, which is a hazard for the city of Santa Cruz.



Our projects

The Blue Schools

This program aims to educate schoolchildren to the management of water, sanitation and good hygiene practices, but also the recovery of waste to make blue schools, incubators of social change "

> Read More

 

Raincommunity

Construction of rainwater harvesting systems in Bhaktapur, to provide safe access todrinking water in 2 schools and 6 camps for displaced families after the 2015 earthquake.

> Read More

 

The Rain, the soil and the people

Climate change requires us to rethink our management methods and practices. This project aims to build community resilience by combining better management of water resources, trees and soil.

> Discover the initiative "a child, a tree"

 

" Unserved "

The "Unserved" project aims to provide access to clean water and restore dignity for those who have nothing, the forgotten from water services, who live on the outskirts of our cities and have to fight every day to access even water for drinking.

 

Workshops: Water and the City

The objective of this workshop is to bring school children to become aware of their environment, and to be able to implement durable, sustainable solutions in their city.

> Read More

 

In the rain ink

The aim of this "In the rain ink" project is to transform the representations of rainwater seen as a nuisance, poetically using the urban environment in which we live.

> Read More

 
 

IRHA

International Rainwater Harvesting Alliance (IRHA)

International Environment House 2
Chemin de Balexert, 9
1219 Châtelaine, Geneva CH

T: +41 22 797 41 57
E: secretariat@irha-h2o.org
 

Make a donation

IRHA

Account: 17-198970-3
IBAN: CH15 0900 0000 1719 8970 3
BIC: POFICHBEXXX