Keanekaragaman dan Potensi Regenerasi Hutan Aek Nauli Kabupaten Simalungun

Abstract

This study aimed to know the structure of vegetation and potency in reforesting the Aek Nauli Forest of Simalungun. The research was conducted in January 2011 with compartment line. It was found 36 families and 106 sorts of tree spreading since the time of growth as seeding, stake, post and trees on upper and lower forest. It was found on upper forest noted 16 families and it was 34 types, the upper secondary forest noted 29 families. The diversity in plant existed on Aek Nauli forest is classified into about moderate through high rate. On loner secondary forest with seeding phase is dominated by Quercus sp, stake of Eugenia post Eugenia sp, and tree E susingariana K. et V. On upper primary forest as on seeding rate is dominated by Eugenia sp, stake of Eugenia sp, post Persea adoratisima, and tee F. grossularoides. On upper secondary forest with seeding phase is dominated by Alseodapne sp, stake A. glabra, post R. Theismanns Mig, and tree R. theysmanii Mig. The similarity in its type Between the upper primary forest with the upper secondary forest seen on tree and pole is not in resemble, for the sort of pile and seedling not in resemble anymore. For the upper primary forest the classification of tree is not resemble anymore compared to the lower secondary forest, whereas for the pile is seen not resemble, still for the pile und seedling is so not resemble. The upper secondary forest seen om the tree so far from resemble compared to the lower secondary forest, and for the pole, pile, and seedling is not resemble. The destroy of vegetation in secondary forests highly noted as compared to the destroy of primary forest for found occurrence reducing its member of trees ha” about 402% on secondary forest. This is also indicated in shortage closing of entry on secondary forest compared to the primary forest Vegetation stratification is included in stratum A, B,C. D, and E.