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In order to find strategies for sustainable management of resources, a study was carried out on the analysis and management of stands of Gnidia glauca in the Kilum-Ijim region (North-West Cameroon). All individuals were identified and counted in 33 plots of 40mx40m established between 1963 and 2785 m altitude in these Gnidia glauca formations. The height and diameter of each individual were measured. A quadrat of 1m² was established around the mature trees to evaluate the regeneration. ANOVA was used to compare the average density of the species in various plots and the DUNCAN test at the 5% significance level (SPSS software version 17.0) was used to separate these means. It emerges from this study that the Thymelaeaceae (G. glauca) family is mainly represented. The Asteraceae, Rubiaceae, Poaceae and Fabaceae are the most diverse families in these formations. The distribution of individuals of G. glauca in diameter classes shows a decreasing pattern. The low density of G. glauca is observed at low altitudes (166.66 stems / hectare), and the high density is between 2350 and 2450 m (778.18 stems / ha). The average standing densities of G. glauca varies between 64.58 and 459.37 stems per hectare; these values indicate a good regeneration of this species in European Scientific Journal February 2017 edition vol.13, No.6 ISSN: 1857

Cameroon’s forests form an important component of forest block in the Congo Basin with about 20 million hectares containing over 8000 species of vascular plants of which about 150 are endemic. These forest resources are of significant economic value and many people earn their livelihood from the gathering and trading of food, fuel wood, fruits, leaves, medicinal products, and construction materials. Forest foods are vital to Cameroon’s food systems, including urban food systems, but they are threatened by the vulnerability of tropical forest ecosystem to climate change, a vulnerability exacerbated by recurrent past and the present problems related to poor natural resource management, conflict and inequality. Urban residents in Cameroon consume many forest foods and the trade in forest products creates employment for urban residents. This chapter draws together research conducted with forest communities, forest food traders and urban consumers to illustrate the importance of sustainable forest management for urban food security in Cameroon’s secondary cities.

A study was conducted in the western highland region of Cameroon with the aim to assess sustainability of Gnidia glauca exploitation in its natural habitat. In 33 plots of 40 x 40 m, the unexploited, exploited and dead trees were evaluated for vitality using a multi-criteria vulnerability assessment method. An ethnobotanical survey was conducted with 60 respondents in six villages around Mount Oku area. Data were submitted to ANOVA and means separated using Duncan test. The results revealed that 95 % of G. glauca trees were unexploited and only 3.92% showed signs of exploitation, among which 1.08% were dead. Among the exploited stems, 18% showed a completely dead crown, whereas 73% were described to be regular and healthy. Wood (29%) and bark (28%) were the main products being exploited. However, the species' bark was the most frequently harvested product (64%). G. glauca was shown to be more vulnerable in forests (2.6) than in savanna (2.4). The motivating factors for the species' domestication were the fragility of its habitat, the potential high future demand for its products and the unsustainable exploitation techniques being applied. It is therefore recommended to promote the species uses, conservation and cultivation within its national distribution range for local livelihood improvement.

Transplant quality of Echinops giganteus depends on factors like: microclimate parameter, substrate, plant nutrition, and others. The growth stage is also an important index of its quality. The objective of this research was to determine the effect of transplants’ growth stage on the mortality rate and quality of Echinops giganteus seedlings after transplant. The research work was carried out on nursery beds at the Research Institute of Agricultural Development (RIAD). The investigated transplant growth stages were seedling height, number of leaves and seedling age. Data collection began one month after the transplant, and the observations were done every week for eight weeks. The growth stages of Echinops giganteus transplants had no significant effect on the average yield, but the mortality rates were greatly affected by the transplant growth stages. From the results of this experiment, mortality rates were low when seedlings were transplanted with two leaves (17%) and at 12 cm (22%). When seedlings of Echinops giganteus were transplanted at an earlier growth stage, the mortality rates were lower than when they were transplanted at an older growth stage.