In the Gash Delta of Eastern Sudan, spate irrigation (flood-recession farming) contributes substantially to rural livelihoods by providing better yields than rainfed dryland farming. However, spate irrigation farmers are challenged by the unpredictability of flooding. In recent decades, the number of farmers practicing spate irrigation has decreased, due to varying rainfall intensity and frequency, insufficient infrastructure and farmers’ limited capacity to manage such variations.

Historic data and old topographic maps include information on historical floods and paleo-floods. This paper aims at identifying the flood hazard by using historic data in the drainage basin of Pinios (Peneus) River, in Thessaly, central Greece. For this purpose, a catalogue of historical flood events that occurred between 1979 and 2010 and old topographic maps of 1881 were used. Moreover, geomorphic parameters such as elevation, slope, aspect and slope curvature were taken into account.

Arid and semi-arid regions have different spectral characteristics from other climatic regions. Therefore, appropriate remotely sensed indicators of land use and land cover types need to be defined for arid and semi-arid lands, as indices developed for other climatic regions may not give plausible results in arid and semi-arid regions. For instance, the normalized difference built-up index (NDBI) and normalized difference bareness index (NDBaI) are unable to distinguish between built-up areas and bare and dry soil that surrounds many cities in dry climates.

Community land and natural resources lie at the heart of social, political and economic life in much of rural Africa. While the Zambian government acknowledges customary tenure, it has not established required legislation needed to secure it and support to communities in their efforts to protect their lands.

L’homme à travers ses actions dénature fortement l’occupation des sols engendrant une modification du milieu naturel. Cet impact rend la nécessité de fournir aux décideurs des cartes d’occupations des sols et des informations relatives à leur état et dynamique. C’est dans cette optique qu’une étude de l’occupation des sols a été conduite dans les carrières de phosphates au sud-est du Togo. Cette recherche vise à analyser la dynamique spatiale de l’occupation du sol dans ces carrières.

Land Use and Land Cover (LULC) classes defined by subjective criteria can diminish the significance of a study, hindering the reproducibility and the comparison of results with other studies. Having a standard legend for a given study area and objective could benefit a group of researchers focused on long-term or multidisciplinary studies in a given area, in the sense that they would be able to maintain class definition among different works, done by different teams.

Since the 1990s, many peatlands that were drained for peat extraction and agriculture in Russia have been abandoned with high CO2 emissions and frequent fires, such as the enormous fires around Moscow in 2010. The fire hazard in these peatlands can be reduced through peatland rewetting and wetland restoration, so monitoring peatland status is essential. However, large expanses, poor accessibility, and fast plant succession pose as challenges for monitoring these areas without satellite images.

Mobile Terrestrial LiDAR (Light Detecting And Ranging) (MTL) is a new technology adapted to increasing need of 3D geo-referenced data. The system requires an integration of laser scanners with other sensors of navigation such as GPS and INS and inertial measurement unit. This fusion allows direct georeferencing of point cloud data. As well as the practical accuracy, the theoretical accuracy of raw data also deals with the investors in the mobile mapping systems. This study evaluates the theoretical accuracy of point clouds produced by MTL system through the error propagation theory.

Despite the local and global importance of forests, deforestation driven by various socio-economic and biophysical factors continues in many countries. In Nepal, in response to massive deforestation, the community forestry program has been implemented to reduce deforestation and support livelihoods. After four decades of its inception, the effectiveness of this program on forest cover change remains mostly unknown.

This Handbook aims to explain how satellite Earth Observation (EO) are an essential tool in the development of the information and evidence required by many of the SDG Targets and Indicators.It has been prepared for national agencies, UN bodies and other SDG stakeholders working towards a collective implementation of the 2030 Agenda and towards a cost-effective response of countries to the SDG monitoring and reporting challenges.

Soil erosion is a very critical form of land degradation resulting in the loss of soil nutrients and downstream sedimentation of water storages in the highlands of Ethiopia. As it is technically and financially impossible to conserve all landscapes affected by erosion, identification of priority areas of intervention is necessary. Spatially distributed erosion models can help map landscape susceptibility to erosion and identify high erosion risk areas.

Although Ethiopia has abundant land for irrigation, only a fraction of its potential land is being utilized. This study evaluates suitability of lands for irrigation using groundwater in Ethiopia using GIS-based Multi-Criteria Evaluation (MCE) techniques in order to enhance the country's agricultural industry. Key factors that significantly affect irrigation suitability evaluated in this study include physical land features (land use, soil, and slope), climate (rainfall and evapotranspiration), and market access (proximity to roads and access to market).