Abstract: With the support of 3S technology and Fragstats 4.0 and by using the landscape ecology principle,the authors analyzed the forest landscape patterns of Ruyang area in Nanling National Nature Reserve through a variety of landscape indexes,type level and landscape level.The results showed that evergreen broad-leaved forest was the main type in Ruyang area for the reason that the area of evergreen broad-leaved forest landscape was 19759.53hm²,which accounted for 64.43% of the total area.The results also showed that the scheduling of the area of each patch type was as follows:evergreen broad-leaved forest﹥coniferous forest﹥deciduous broad-leaved mixed forest﹥mixed needle﹥cutting blanks﹥the mountain broad-leaved thicket﹥mountain meadow﹥road﹥construction land﹥waters﹥arable land.The patches of the whole landscape were adjacent to each other,spatial distribution was in equilibrium,spontaneous shape and the fragmentation degree was low.

Key words: forest landscape pattern, 3S technology, Nanling National Nature Reserve