The combination of these two concepts allows, in space and at a precise time step, to identify the modifications undergone by the environment. This result may be a trend towards re-greening (improved vegetation cover) or desertification in light of human activities and / or current climate change. These two notions of greening / desertification, once developed, are scaled up to promote good practice and, on the other, to draw the attention of officials to the need to banish harmful practices For the maintenance of ecosystems. The approach put in place by the CILSS makes it possible to realize the state of the natural resources in the CILSS / ECOWAS space and consequently the way in which they are managed. Because where they are well managed, it is a guarantee of good production, even a good food security. In addition, in certain areas degraded by wind erosion, water erosion or cultural practices, the tool put in place allows them to be easily retrieved so that appropriate (biological and / or physical) actions are taken to restore natural resources . These resources essential to agro sylvo pastoral productions including land, water resources (surface water, rainwater, etc.) and forests. Indeed, in order to produce, a farmer needs land whose quality allows him to return his investment with satisfactory levels of yield.
How monitoring is done:
- CILSS / ECOWAS level Mapping products on land use and land use with 2 km resolution The products of 1974, 2000 and 2010 are available and allow to assess the changes by occupancy class and land use during this period.
- Country Level
- Most operational level (common)
Map products on land use and land use at 1 km scale. Like the regional level, country focal points have developed similar products for their countries in order to conduct the same treatments. The latter show the evolution of land area by occupancy class / occupation of the soil to feed the statistics in the field. This reality makes it possible to account for the way natural resources are managed.
Use of the Collect-Earth tool to establish (i) land-use and land use maps on a scale ranging from a maximum of 30 m to a maximum of 500 m as a complement to regional and state (Ii) statistics on the following vegetation cover, in particular the evolution of the average number of trees and shrubs per commune or any other ecological zones monitored. Other indicators for vegetation cover monitoring (NDVI), water resources (NDWI, SWB) are regularly compiled to complement the range of others already monitored. The monitoring mechanism as described here will undoubtedly play a preponderant role in accounting for the state of natural resources, and therefore for the ecosystems which are necessary for agricultural production.
There is a strong correlation between natural resource management and food security, which has three dimensions :
- Food availability ;
- Food accessibility ;
- And the use.
Indeed, in the field of food security, the notion of food availability concerns all the food resources produced, in stock or imported for a reference period. Factors affecting this component include: poor rainfall, soil degradation, inadequate use of mineral and organic fertilizer, under-farming, overexploitation of fields, overgrazing, insufficient training techniques. Furthermore, the quality of Natural Resources Influence of agricultural production techniques on availability and ensure their food security. Finally, inadequate and unsustainable production techniques can contribute to the degradation of natural resources, including land that results in their loss of quality and degradation. To ensure sustainable food security for the West African populations, ECOAGRIS needs to provide itself with the means and tools necessary to have qualitative and quantitative data on the state and level of natural resources.