The purpose of the present study carried out with Patu in Democratic Republic of Congo, was to inventory the non-timber forest products (NTFP). For that to make, of the direct observations on the land, of the socio-economic investigations, and of the interviews concerning including the aspects of consumption of the non-timber forest products (NTFP) have been organized in the sector of Patu. These investigatings had for goal to get some information concerning use and the merchandising of the PFNL by the populations of the farming zones. The results obtained indicate that the consumption and marketing of the non-timber forest products (NTFP) show the socio-economic importance which they have in the life of the populations.
The analysis of a contact area of Gilbertiodendron dewevrei forest was conducted in the reserve north of Yoko.
The objective is to characterize the contact zone between the forest Gilbertiodendron dewevrei and semi-deciduous forest.
To collect data, 12 plots were installed at block north of the forest reserve of Yoko at milepost 25.
The results obtained after analysis show that:
-Density is 349 stems per ha for Gilbertiodendron dewevrei forest, 318 stems per ha for the contact area 1 and 351 stems per ha for the contact area 2.
-The number of species is 64 for Gilbertiodendron dewevrei forest, 69 for the contact area 1 and 78 to the contact area 2.
-The diversity index of Shannon is higher in the contact area 2 (3.56) that the contact area 1 (3.33) and forest Gilbertiodendron dewevrei (2.75).
-The basal area is 35.30 sq m / ha for Gilbertiodendron dewevrei forest, 29.48 for the contact area 1 and 27.48 m² / ha for the contact area 2.
-Regeneration of 20 major species found 594 individuals in the Gilbertiodendron dewevrei forest, 450 individuals in the contact area II and 427 individuals in the contact area I.
This study had like objective to evaluate the influence of stock USDA 3272 with the varied combination of the organic matter and mineral manure (NPK) on the coring and the growth of soybean.
The experiment proceeded in situ out of pots of vegetation according to an entirely random device containing 6 treatments and 6 repetitions. The treatments were as follows: (T0: Pilot ground; T1: USDA 3272; T2: USDA 3272 + Leucaena leucocephala T3: USDA 3272 +NPK; T4: USDA 3272 + Tithonia diversifolia T5: Maximum USDA 3272 + Panicum.
After analysis, it arises that the treatments T4 and T5 ensured a good behavior of the seedlings of soybean in terms of height of the seedlings, diameter to the collet and dry weight of the biomass.