Urban Nexus

Integrated Resource Management in Asian cities // The Urban Nexus

The project focuses on the topics of secure water supply and sanitation systems, energy security and efficiency, land use, and food security. The main starting point is at the local level, with the municipal administrations and planning offices, as well as the utilities. Key players at the intermediate level include city associations, training institutions and non-governmental organisations. And at the macro level, the project works with ministries and other national authorities and agencies, which underpin its links to the international Rio+20, SDG and HABITAT III debate.

  • Country: China, Indonesia, Mongolia, Philippines, Thailand, Viet Nam
  • Lead executing agency: United Nations Economic and Social Commission Asia Pacific (UN ESCAP)
  • Overall term: 2013 to 2015

The consulting process involves political stakeholders at all three levels. The project supports its partners in designing, planning and implementing practically oriented nexus pilot projects. It also feeds its experiences it gains into a regional dialogue and learning platform.

The local and regional activities take place in the following partner cities and countries:

  • Ulan Bator, Mongolia (1,200,000 inhabitants)
  • Rizhao, China (2,880,000 inhabitants)
  • Weifang/Binhai Development Zones, China (9,000,000 and 1,000,000 inhabitants respectively)
  • Nakhon Ratchasima (Korat), Thailand (180,000 inhabitants)
  • Chiang Mai, Thailand (150,000 inhabitants)
  • Da Nang, Viet Nam (900,000 inhabitants)
  • Pekanbaru and Tanjungpinang in Indonesia (1,000,000 and 230,000 inhabitants respectively)
  • Naga City and Santa Rosa, Philippines (180,000 and 330,000 inhabitants respectively)

The lead executing agency is the United Nations Economic and Social Commission for Asia Pacific, UNESCAP, while the International Council for Local Environmental Initiatives – South East Asia is responsible for project implementation.


Some 14 practically oriented nexus pilot projects (known as ‘case studies’) have been identified in the Nexus partner cities.

Innovative waste water management concepts have been applied that are linked to renewable energy generation, the use of treated waste water for irrigation and treated sludge for organic fertiliser and compost in agriculture. This form of integrated resource management closes the loop between water, energy and food (including food security). Each city has a cross-sectoral Nexus Task Force to ensure its success.

Peer-to peer learning has strengthened the South-South dialogue, resulting in innovative, adapted, environmentally friendly and financially feasible solid waste management concepts, which convert waste into energy.

A regional Nexus learning platform has been established holding regional nexus workshops twice a year. The platform includes the corresponding national, regional and intermediate level organisations, as well as civil society and private-sector participants, international donors and other city networks.

Decision makers at various levels are now aware of how significant integrated, cross-sectoral resource management, public consultations and private sector involvement are for the creation of resilient cities.


› back


Case study // Solving water problems or creating a new one?

This article was originally published by MAGIC Nexus (magic-nexus.eu) and has been re-published here with ther friendly permission. It gives on overview over a case study in the Canary islands, which aims to examine the technological, environmental and social challenges and keystones regarding the use of AWS (desalination and reclaimed water) for irrigation in two areas of the islands of Gran Canaria and Tenerife.

// more
Capacity Building

Publication // Capacity development for solar-powered irrigation

This is an abstract of an article that originally appeared in Rural21 (rural21.com), an international journal for rural development. The article gives an introduction to the “Toolbox on Solar Powered Irrigation Systems”. As a climate-friendly technology, solar powered irrigation systems hold an enormous potential to increase agricultural productivity worldwide while protecting precious natural resources.

// more
Climate Change

Policy Brief // Understanding the water-energy-food nexus in a warming climate

This article was originally published by Carbon Brief (carbonbrief.org) and has been re-published here with their friendly permission. By: Prof Declan Conway, Dr Christian Siderius and Prof Japhet Kashaigili (2019). Prof Declan Conway is a professorial research fellow at the Grantham Research Institute on Climate Change and the Environment at the London School of Economics; Dr Christian Siderius is a research fellow at Grantham; and Prof Japhet Kashaigili is head of the department of forest...

// more