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| The study of mangrove ecosystem in Ujung Piring Jepara |
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in collaboration with D. Dimas Hokka Pratama Soebekti (The Youngest
English Lecturer of Indonesia - MURI Record), student of SMA Theresiana
01 Semarang had conducted mangrove research at Ujung Piring Jepara.
This research has title “The Study Of Mangrove Ecosystem in Ujung
Piring Jepara and Its Correlation With The Planned Power Plant. It was
important mangrove research. Let’s check this out!
Mangrove
community plays an important role to the mangrove ecosystem and its
ecosystem and its surrounding as a source of organic substances and to
be overviewed from its role and function, mangrove woods is a very
potential natural resource. Homever, some problems rise as a common
problem in all whole Java in several aspects of the ecosystem which
are: functionality changes of the mangrove forest to be fishery area,
housing/residential area, and some other purposes. The study was
intended to know the parameters of the ecosystem’s condition including
pH, salinity, sediment, structure and the composition of the mangrove
vegetation, and existing biotas. In addition, the aim of this study is
hoped to be a base of consideration and the source of information for
the planned power plant.
The study was conducted in September,
14 and 17, 2007 at three locations in Ujung Piring which are: Jambu,
Blebak, and Sekuro. Each of the location is then divided to three
stations (Mueller-Dumbois and Ellenberg, 1974) and for every station, a
plot measured 10x10 m was produced and subplots of 5x5 m and 1x1 m was
made.
The mangrove species composition found in Ujung Piring, Jepara, is composed on 9 species that is joining five family, they are: Lumnitzera racemosa, Ceriops decandra, C. tagal, Rhizopora apiculata, R. stylosa, R. mucronata, Sonneratia alba, Excoecaria agallocha, and Pemphis acidula.
For the three categories that is studied (tree, sapling, seedling) in
Jambu, where there is no species that is dominant. In Jambu, it is
found that the domination of R. apiculata is certain with the
Dominance Index (C) of 0.59 and is found at every station at the study
area (highest at 833.3 ind/ha and lowest at 233.3 ind/ha), and the
importance value coming from the range of 182.9%-200%. For the category
of sapling R. apiculata is still the most easy to find
everywhere and is dominating in Jambu, where in Blebak, most of the
species of sapling living at the rate of individual density of 2133.3
ind/ha. In general both of the uniformity and diversity rate is
categorized as low.
During this study, the writer found a species which its spreading is not common in Indonesia, the species is P. acidula. Also in this research there are also some macro benthoses which is found there are 6 species of crustaceae class: Cilibanarius sp. Metaplax sp, Coenobita sp, Metopograpsus sp, Uca sp,and Paracleistostoma sp., it is also found 4 species of gastropod which are Cerithidea cingulata, Clypeomorus moniliferus, Terebralia sp. and Terebralia sp1.
The
result of the research showed that the environment of mangrove is quite
good for the spreading and growth of mangrove, because in the location,
mangrove grows at the salinity decree of 28-32‰, has a flat topography,
and the providence of sediments (in which, it is predicted there is a
contain of sulphate reduction in Jambu, that is marked by silty black
sediment with strong smell of reduced carbonate (CO32-) like methane
gas (CH4) and ammonia (NH3), in Blebak, it is predicted that the
presence of Sulphate (SO42-) reduction is existed, marked from the
silty sand with blackish–gray sand characteristic, and in the third
location, Sekuro it is predicted that in the site, contains a presence
of Nitrate (NO3-) reduction; marked with the presence of sandy reef
with yellow-brown coloring.
The causes why the mangrove was
only found in sum of nine species which is grouped to five families
were: housing problem, usage of mangrove woods as fuel, and opening of
the mangrove forest as fishery area. Now, the problem is worsening
within the plan of establishment of power plant is commenced in Ujung
Piring due to the recent demonstration. It is now a question for the
sake of the Mother Nature; whether or not we are going to save the
mangrove or will we disturb the order of this good for mangrove-living
and development environment. For the sake of our environment, for the
sake of the Indonesia, and for the sake of Mother Nature, Let us make a
notion of saying no towards the planned power plant in Ujung Piring. | | Posted: 1/5/2008 at 10:12 | Read 394 times | 0 comments | Leave Comment |
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| KeSEMaT | "Salam MANGROVER!" 31 years old Male Semarang, Indonesia Hometown: Semarang
Last Login: 11/29/2009
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