Perlie Velasco – författare

Nature-based solutions (NbS) are solutions inspired or supported by nature. They include ecosystem conservation and restoration measures, as well as the creation or enhancement of natural processes in man-made ecosystems, such as cities. Recent interest in NbS has emphasized their importance for urban water management and cities across the world have begun to experiment with them. Experiences from different contexts, however, are not adequately captured and understood. This book aims to address this gap by compiling case studies and reviews that explore NbS for urban water management from different regions and perspectives and highlight emerging challenges and opportunities for harnessing their potential.

The value of implementing nature-based solutions (NbS) for water treatment in urban environments is increasingly recognized due to the multiple ecosystem services and societal benefits they provide. The successful implementation of NbS for urban water treatment, however, depends on a range of diverse technical and societal factors that need to be taken into account. Those vary by the type of NbS implemented, the societal challenges the NbS are designed to address and the local ecological, socio-economic and political context, in which the solutions are implemented.  

This book provides a collection of guidelines for the implementation of three types of NbS for water treatment in urban environments across cities in South/Southeast Asia, namely constructed wetlands, green roofs and floating treatment wetlands. The guides were developed based on existing experiences with the establishment, operation, and maintenance of those three types of NbS in three different countriesin South/Southeast Asia and the lessons learnt from their implementation. They provide detailed outlines of suggested steps for ensuring successful implementation in the respective local contexts. Those include overall planning schemes, surveys for socio-economic evaluations, suggested methods for construction and associated costs, required maintenance as well as a range of operational monitoring parameters. It also includes examples of approaches for the scaling of the three types of NbS discussed in the book in their respective local contexts.

This book is expected to benefit local government units and contractors, and other stakeholders involved in NbS implementation and up-scaling, as well as researchers and postgraduate students who plan to conduct pilot-scale studies on NbS.