The productivity of forest natural resources is now decreasing and therefore rehabilitation efforts is urgently needed. Breeding of forest plant is the best solution to increase forest productivity in both quantity and quality. The biological reproduction can be conducted through seed production with fertilization. This research was aimed at determining the effect of fertilizing treatments on pod and seed production of different Glirisidia sepium provenances to find out the best provenance and best fertilizer dosage. Fertilization treatments showed a significant effect on the pod and seed production. On the other hand, the provenance and its interaction with fertilizing did not show any significant effects on the pod and seed production. The best performance was found on the fertilization treatment of 500 g resulting in the average production of 1,288 pods and 27,621 seeds/tree. Keywords: Fertilizing, Seed Production, Provenance, Glirisidia sepium

One of the conifer species that can thrive in Indonesia is Pinus merkusii. This pine is an endemic species on the island of Sumatra, particularly in Aceh, Tapanuli, and Kerinci. In addition, there were other exotic species (Pinus sp.) growing on the island of Sulawesi. However, it has never been reported before. Therefore, this study aims to examine and describe the soil characteristics under Rombeng Pine (Pinus sp.) stand in Bantaeng Regency in terms of information on the soil nutrients under the Pinus sp. stand. The used method included sampling soil and collecting tree tissues. The results showed that the characteristics of soil properties varied. Both physical and chemical soil characteristics varied, particularly in soil texture class, organic matter content, C%, N%, C/N ratio, P2O5, and Mg.

Global warming is one of the world’s issues today. Global warming is a result of the greenhouse effect because it absorbs infrared light reflected by the earth from the sun. CO2 gas contributes the most to the greenhouse effect. The solution to the problem of global warming is the presence of forests. One type of forest ecosystem is the mangrove forest ecosystem. This study aims to determine the carbon storage of mangrove stands found on Pannikiang Island in the northern part of Barru Regency, South Sulawesi Province. Biomass measurement uses the allometric method performed on mangrove stems by measuring stem diameter in a circle-shaped sample plot of 12.62 m. The results showed that there were ten species found in the study locations: Avicennia alba, Avicennia marina, Bruguiera gymnorrhiza, Bruguiera sexangula, Ceriops decandra, Rhizophora apiculata, Rhizophora mucronata, Rhizophora stilosa, Scyphiphora hydrophyllaceae, and Soneratia alba. The total value of the total stem carbon deposits in the mangrove stands on Pannikiang Island in the northern part of Barru Regency reached a total carbon stem portion of 640,512 tons with a maximum range of 859,174 tons and a minimum of 421,871 tons.

This research aimed to know the effect of some doses of natural inoculants on the growth of Shorea pinanga seedling. The research was carried out with several steps including seed provision, inoculation of ectomycorrhyza, planting and maintenance in the nursery. The result of the research showed that height and number of branches were different at the significant level of 5 %, while diameter and number of leaves were not significantly different. The natural inoculants dose of 15 g showed the best growth in response to the increment of height, diameter, and number of leaves, while that of 20 g showed the best in the number of branches increment. Key words: Shorea pinanga, ectomycorrhyza, seedling, natural inoculantstor, Local Government Revenue, regional autonomy

The intensive use of Eboni has caused a decrease of its natural population which has also contributed to the future loss of genetic potencies. Preservation efforts could only be conducted if the actual potencies of the stand and its environmental conditions were recognized. A study on stand and regeneration potencies as well as its soil characteristics is needed as a basic in management aplication for the increase of genetic potencies. This study used a systematic sampling survey method and laboratory analysis. The study aims to identify tree potencies and regeneration of Eboni Makassar as well as its soil characteristics under the stand. The results are expected to provide a description on Eboni Makassar potencies and its management efforts. It was found from the study that the potency of Eboni was 5.013 m3/ha with minimum and maximum estimated volumes of 3.163 m3/ha and 6.863 m3/ha, respectively. Eboni was naturally regenerated better in >40% slope category. Keywords: Eboni, Potencies and Regeneration, Various Slope