| Summary: | In 2010 occurred the eruption of Mount Merapi disaster. After the
devastating 2010 eruption has destroyed most of the slopes of Merapi. The
disaster caused a bit much reduced biodiversity in the region. In undisturbed
ecosystems will occur succession to restore the vegetation composition as before
Acacia decurrens is the dominant species in succession at Merapi.
This study aims to determine the composition of woody plant species,
population density, spatial distribution patterns, as well as the diversity index
constituent plant species composition of vegetation in the path of Acacia
decurrens, after the eruption of Merapi in 2010. Primary data was collected in the
location of research, namely the Ground and pure-bred lines. on each lane
measuring plots were made using the least squares method (quadrate methods)
with a distance of 100 m between plots. Initial plot created by purposive,
determination of sample plots used squared is 10 m x 10 m at the poles.
The study found that the path of the Ground There are 5 types of plants
Saga, Rasamala, Puspa, Guava, and Leucaena, population density ranges from 2-
1943 individuals/ha where 1554 people/ha dominated by Acacia decurrens , is the
spatial distribution pattern of 3 types plants have clumped spatial distribution
patterns ( Saga, Puspa, and Rasamala ), 1 species of plants have a uniform spatial
distribution pattern ( Guava ) and 1 type of plant has a random spatial distribution
patterns ( Leucaena ), as well as the diversity index ( ISW ) 0,042984856 ( low
diversity ). In the two pure-bred lines known that there are 8 types of plants Saga,
Leucaena, Puspa, Kaliandra, pine, guava , jackfruit , and Waru mountain while the
population density ranges from 2-1342 individuals/ha where 1073 people/ha
dominated by Acacia decurrens, the distribution pattern spatial are 5 types of
plants have clumped spatial distribution patterns (Saga, Leucaena, Puspa,
Kaliandra, and Pine ), 3 types of plants have random spatial distribution pattern
(Guava, Jackfruit, and Waru Mount ), as well as the diversity index ( ISW )
0,125908892 ( low diversity).
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