報告
ニジェール共和国における緑資源公団の砂漠化防止対策事業の効果と普及可能性の評価
2003 年 12 巻 2 号 p. 193-207
詳細
2003 年 12 巻 2 号 p. 193-207
Japan Green Resources Corporation (JGRC) conducted agricultural technologies verification surveys for eleven years from 1990 to 2000 in Magou terroir, Tillaberi Department, Niger. The author carried out a survey in 2002 on the sustainability of the agricultural technologies experimented in the technology verification surveys and diffusion of the technologies to the surrounding area.
In the wadji river basin, farmers still continue three technologies such as (1) paddy cultivation in the rainy season, (2) joint vegetables cultivation garden in the dry season, and (3) agro-forestry garden with combination of fruits and vegetables. Besides, the diffusion to the neighboring villages was recognized. In the glacis gentle slope land, that occupies about seventy percent of the Magou landmass, many farmers continue some intensification cultivation methods of mixed cropping of millet and niebe bean, such as early varieties, the combination of composite and manure fertilizer and chemical fertilizer, etc. These technologies were diffused to the neighboring villages by agricultural field officer who was involved deeply into the technology verification surveys.
On the other hand, the technology verification surveys left some problems that should be examined from now on. First, in the mesa plateau area where is generally considered as local inhabitants' common land, most components of the technology verification surveys involving reforestation and fodder cultivation have not gone well. Trial to reexamine the success case in these fields like PASP's trial on the restore of vegetation on the mesa plateau area and PED's fuel wood market program will get necessary. Second, large amount, about100million yen, will be needed to implement the original land use plan and production plan in Magou terroir.
Referring to the examples that the verified technologies have transferred to cheaper technologies in the process of diffusion to other villages, attempt should be made to make land use plan and production plan of Magou terroir again.
