Knowledge like water: nurturing growth Participatory 3D mapping in North Darfur

North Darfur is a dry, dusty place for much of the year; but when it rains, it comes alive with greenery. Wadi El Ku, a seasonal watercourse, suddenly flows providing water to thousands of people, their livestock and crops, which is the lifeline or breadbasket in El Fasher town, the capital of North Darfur, home to approximately 700 thousand people.

However, in the past 20 years, there has been widespread environmental degradation compounded by climate change. This video animation shows how local communities have been joining forces to find solutions, particularly as they relate to water scarcity and poor water management.

Knowledge like water: nurturing growth - Participatory 3D mapping in North Darfur from CTA on Vimeo.

The participatory mapping activity described in this video took place in 2015, in the framework of the European Union-funded 'Wadi El Ku Catchment Management Project for Livelihoods Development and Sustainable Peace' project and has been facilitated jointly by the United Nations Environment Programme (UNEP), Practical Action and CTA.

Find out more

See photos and further details about the project 'The Wadi El Ku Catchment Management Project (WEK) for Livelihoods Development and Sustainable Peace'
Read more about the project on UNEP's website
Watch the video animation in French or in Arabic

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Sri Lanka's drone pioneers

The International Water Management Institute (IWMI) in Sri Lanka has begun to experiment with drone technology to support a wide range of studies like crop monitoring, disaster mitigation and disease prevention.

In recent months, the Colombo based International Water Management Institute (IWMI) has begun to use unmanned aerial vehicles (UAVs) – also known as drones – to monitor rice crops in and around the water scarce area of Anuradhapura. The institute is testing the data-collecting capabilities of UAVs for various purposes. For example, RGB (red, green, blue) colour and near-infrared (NIR) sensors were used to capture images over the paddy fields. These technologies have the potential to help farmers detect fields that are under stress and to help them identify low-laying areas prone to pooling.

IWMI's drone is also regularly used in partnership with local authorities. In December 2015, the Survey Department of Sri Lanka was developing a disaster mitigation plan for Badulla, the capital city of Uva Province. The Survey Department needed a high-resolution Digital Elevation Model (DEM) of the town for the plan, and asked IWMI to use its drone to capture the required aerial imagery.

Using conventional techniques, it might have taken over a year to survey the town. However, the drone used by the IWMI team was able to survey the entire 10 square kilometres area in just three days, by carrying out fourteen UAV flights and shooting 4,600 high-resolution images, with an average spatial resolution of four centimetres.

.@IWMI_ in #SriLanka uses #sUAS to monitor #crop #disaster & #disease https://t.co/ftxUg2knyy #drones #DRR #aviation pic.twitter.com/Gc2oCbT73E

— Drones 4 Agriculture (@UAV4Ag) May 5, 2016

Disease prevention

Drone imagery can also be used to better understand the spread of disease, allowing health analysts to create high-quality maps. Chronic Kidney Disease of Uncertain Aetiology (CKDu) is one of the most serious non-communicable diseases presently afflicting Sri Lankans, and it remains poorly understood. First diagnosed in the mid-1990s, the disease has now been found to occur in six out of the nine Sri Lankan provinces. It is essentially confined to the dry zone and only affects farmers engaged in rice cultivation. CKDu is believed to have resulted in the death of approximately 25 thousand people to date, while over 8 thousand people are currently estimated to be receiving treatment for the condition.

In the CKDu-affected area of Mahiyangana, the disease is believed to be spread via contaminated drinking water, which originates from wells. The UAV has been used to gather geo-referenced data on where households live and where wells are located. The collected data can be used in addition to a digital elevation model to locate the high and low areas of two villages, Sara Bhoomi and Badulupura.

The gathered data has been used in support of a pilot project on prevention of CKDu in the area. According to project leader Ranjith Mulleriyawa, these aerial photos and maps have provided researchers with an improved overall picture of the area, helping them understand how contaminated wells are linked to the spread of CKDu in affected areas.

High accuracy

IWMI also plans drone initiatives in Nepal to map fresh water springs by using a small thermal sensor. The targeted watersheds in Nepal have dense canopy cover, and it is difficult to use standard optical sensors to identify and locate the springs. The drone-mounted thermal sensor can see through the dense canopy cover to find these springs, as their temperature is lower than the temperature of the earth surrounding them.

While the use of UAVs in research and other practical applications remains in its infancy, IWMI’s initial tests have already demonstrated their usefulness. Drones can be used to carry out surveys over large and hard-to-access areas, in a relatively short timeframe and with high accuracy. For policy experts and decision-makers, these aerial images can provide them with more accurate and up-to-date information than has hitherto been possible. For farmers, high-quality drone images can help them detect potential crop failure early, giving them enough time to respond.

IWMI thinks that UAV based surveys will be especially useful in studies that require highly accurate and repeated monitoring. These include checking for changes in cropping patterns, shifts in the status of important water resources, and documenting the extent of environmental disasters. It doubtless won't be long before farmers routinely use UAVs to monitor their crops, just as they use more conventional machinery to sow and harvest.

About the author:

Salman Siddiqui (S.Siddiqui@cgiar.org) is senior manager of the Geographic Information System (GIS), remote sensing and data management unit at the International Water Management Institute in Sri Lanka.

Source:

Republished with consent from http://ictupdate.int

The Right to be Different: Struggle for Water and Identity in the Andes

In the parish of Licto, near Riobamba, in Ecuador, the indigenous population fought for its water. Indian peasants participated in the design, construction and organisation of the irrigation system. After more than 20 years the water finally reached the community. The story is told by Inés Chapi, an Indian woman, who came a long way from being oppressed and discriminated against to become a most respected irrigation organiser in the system.  In the Andes they call it blood of the earth, the source of life from which other life grows. Water, feeding the land as well as the imagination. Giving rise to rituals and myths, fueling tradition and culture. Ancient and modern conquerors of these highlands denied the indigenous people access to springs and rivers. Water became a source of conflict. And usually the Indians got a raw deal.

Based on: The Rules of the Game and the Game of the Rules’ by Rutgerd Boelens; Executive producer and scenario: Barend Hazeleger; Photography: Thom Deelstra; Sound recordist: Juio Gorck; Editing: Jan Pieter Tuinstra & Barend Hazeleger; Scientific research and Interviews: Rutgerd Boelens; Produced by Agrapen and Wageningen University (2003)

More on the case: http://bit.ly/1OAlBsX

Participatory 3 Dimensional Modelling in Madagascar: A process to be replicated in the Democratic Republic of Congo

Participatory three-dimensional modelling (P3DM) has already shown considerable potential in a number of countries with regard to the mobilisation of communities in the context of bottom-up planning and management of natural resources.  In Madagascar, the very first P3DM exercise took place in February 2015, in the Avaratrambolo water catchment area.

The exercise was conducted in a rural farming area some 35 km from the Madagascan capital, Antananarivo. The population of this region, situated in the northern part of the island, makes a living almost exclusively from rice farming, with weak purchasing power and poor access to the markets. The rural landscape is dominated by paddy fields, small forest plantations and a small remnant of natural forest. The catchment represents the source of a number of important river courses.
The P3DM exercise took place within the framework of a project aimed at promoting agriculture and water management called "Let's move towards change", Ndao hivoatra in the Madagascan language. This project, which involves several local, national and international, has gained special significance for local communities.



As in many parts of Africa, property issues are very sensitive in Madagascar. This explains why, in recent years local communities have ben reluctant in participating in a number of rural development projects. The P3DM exercise in Avaratrambolo made a significant contribution to removing concerns related to potential land grabbing. As with earlier projects in the area, the Ndao hivoatra project was thought by rural communities to be a trick to take over ancestral land for the benefit of multinationals that pose as promoters of rural development in remote areas of Africa. In spite of the numerous awareness-raising meetings which preceded the P3DM exercise communities perceived the forthcoming mapping process as a means for identifying areas which could be taken away. This had to radically change during the P3DM process …

The first phase of the exercise involved the construction of the blank 3D model. This phase was preceded by a workshop involving local facilitators and international facilitators from the Democratic Republic of Congo (DRC), as well as representatives of the institutions involved in the Ndao hivoatra project, to plan the process, identify preliminary equipment, logistics and define how best to engage the communities in participating. It was during this workshop that all those involved gained an understanding of the overall scope of the forthcoming mapping exercise.

The first visit by facilitators to the village of Ambohitrakely took place under a torrential downpour over a severely eroded and hardly accessible dirt road. This first activity was intended to guide schoolchildren trace and cut out cardboard layers for the construction of the 3D model. The children's work on the model sparked the curiosity of their parents. Gradually, adults including residents of nearby villages became involved in the construction of the model.

On 13 February 2015 the completed 3D model was officially displayed in the village of Ambohitrakely. In addition to representatives from the project implementing agencies, national ministries, researchers and other stakeholders, the event brought together a large and festive crowd including local, religious and traditional authorities and the local population which initially appeared reluctant to participate in the Ndao hivoatra project due to the sensitivity of the land tenure issue. The positive messages and the enthusiasm shown by the participants were a clear indicator of the behavioural change occurred. The model-making process proved to have plaid a reconciliatory role with regard to the project. Active participation of the local communities in the construction of the model and, in particular, in their driving role in defining the content of the map legend and populating the model with geo-referenced data, noticeably increased their confidence and feeling of ownership and control of the process. Residents now feel that the 3D model belongs to them as a tool to guide the implementation of the Ndao hivoatra project.

P3DM proved to be a powerful process for land and forest planning, management and development. The success of this exercise in Madagascar points to the usefulness and the opportunity for replicating the process elsewhere in Africa. For example, the exercise could be run in the east of the Democratic Republic of Congo (DRC), where the process of governance and management of community forests continues to progress. The publication of Decree No. 14/018 dated 2 August 2014 sets the modalities for allocating forest concessions to local communities in the DRC. Concerned local communities and Indigenous Peoples would benefit from P3DM to identify their ancestral territories and effectively plan and implement both conservation and sustainable development projects. The creation and operationalisation of the community forests and the recognition of indigenous and community conserved areas (ICCAs) in the DRC is a process that requires not only the passing of pertinent legislation, but also, and in particular, a commitment on the part of a range of stakeholders. Without obtaining full support from technical, scientific and financial stakeholders, the good will of the DRC government may be in vain.

Written by Dominique Bikaba, Strong Roots Congo

Notes from the author: The success of this first P3DM process in Madagascar can be credited also to the qualities and skills of the lead facilitator Mr Barthélemy Boika, who demonstrated his talents as an educator and community motivator. My thanks also go to the Technical Centre for Agricultural and Rural Cooperation (CTA) for its technical inputs and for supporting my participation in the exercise.

The project « ndao hivoatra » has been launched by the Association for Strengthening Agricultural Research in Eastern and Central Africa (ASARECA) with funding provided by the World Bank to promote sustainable rural development. Le projet is implemented by Artelia Madagascar with technical support provided by Farming and Technology for Africa (FTA) in partnership with FOFIFA (Centre National de la Recherche Appliquée au Développement Rural). The P3DM exercise which represents a punctual component of the overall project has been supported technically and financially by CTA.

1st Participatory 3D Modeling in Madagascar

This 5 minute video documents the 1st Participatory 3D Modelling (P3DM) exercise in Madagascar, specifically with communities residing within the  Avaratrambolo Watershed, a few hour drive from the capital city Antananarivo. The event took place at the beginning of February 2015.


More information on the event are found in this blogpost.