The different forest ecosystems of the RDC have been affected by the dynamics of the soil occupation during these last decades, characterized by a clean reduction of the natural formations to the profit of the formations anthropiques. The studies achieved on this day limited themselves to an analysis diachronique by the integrated approaches implying the techniques of spatial analysis combined to the geographical information system (SIG). Setting to part the analysis diachronique of the imagery LANDSAT TM, ETM+ and OLI (of parth and Raw 177-59, 1766-59 and 176-60) spreading of years 1986 to 2015 and supported of direct observations, the present survey sketches a prospective analysis of this dynamics while combining the applicable variables of the changes and the deterioration of the forests to a test of modelling to the deadline 2065. The variables have been regrouped in 7 subgroups: agriculture, lumbering, infrastructures, the demographic factors, the socio-politic factors, the economic factors and the biophysical factors. Nevertheless, only the variables spatially explicit have been quantified and steady to the models. For the rest, two tools of modelling (CA_Markov and LCM) have been used and the best allowed of cartographier the risks of deforestation the deadline 2065; the modelling has been made to the scale of the reserve of biosphere of Yangambi. For the two models a based objective and quantitative approach on the budgeting of the mistakes and the correct predictions has been adopted finally. The results show a meaningful regression of the forest formations to the profit of the classes anthropisées with rates of deforestation of 1986-2002 and 2002-2015 of 1,1% and 4,31% and respectively. These reports come proved the necessity of the setting in application of a planning plan in view of the lasting management. The visual and statistical comparison of the affected and real cards of 2015 allowed to use the tool THAT Markov for the simulation of the variation in surface of the classes of soil occupations the deadline 2065. However, the omen of an alarming and continual regression if some consequent measures are not set in motion.

The Mbiye Island is a forest reserve managed by the University of Kisangani. It is currently undergoing an unprecedented anthropization related to the manufacture of charcoal. This practice leads to forest loss peril. This study has the following specific objectives: To assess the impact of charring on the ecosystems of the island Mbiye. Assess profitability or profits from charring wood in the household coal. To collect data, a sample of 40 peoples was drawn from randomized in five villages of the island Mbiye. These villages are: Akoka, Kolema, lilo, Makululu and Mongaliema. Respondents were questioned individually on the basis of a survey sheet. It observes five major activities that carbonization ranks first (50%). The Mongaliema town ranks first in the production of wood or 23.7 %, followed Makululu with 22.2%, with 20.7% Akoko and finally Kolema,Lilo have a low percentage (14.8% and 18, 5% respectively). The most used in the manufacture of charcoal from trees bordering the forest reserve of the island are: Gilbertiodendron dewevrei 95%, Cynometras essili and Irvingia gabonensis 75% and finally Fagara macrophylla and Xylopia aethiopica 45%. Revenues or 62.5% from the carbonization for coal are affected more in the education of children and health care. The dependence of the latter charcoal depends on deforestation and degradation of forest ecosystems of the planet in general and the forest reserve of the island especially Mbiye. Following these questions, we issued the assumptions that the deforestation, depletion of forest species used in the production of charcoal, degradation of forest ecosystems and climate change would be the major impacts of this activity.