Browsing by Author "Mariana, Mariana"

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    Correlation of Above Ground Biomass Carbon Storage and Productivity of Mangrove Species
    (2017-10-01) Sukendi, Sukendi; Mariana, Mariana
    Kuala Indragiri area is low-lying areas, namely regional stream sediment, peat swamp areas with soil (peat), brackish forest areas (mangrove) and consists of islands large and small with the average height of approximately 0-3 meters above sea level. The research design is the explorative research, by using nested quadrate method. Each station has three line transects consisting three plots of each transect. The total plots are 45 in each determined mangroves land. The methods followed the procedures developed by the Center for International Forestry Research (CIFOR) for mangrove forests. The finding showed the highest carbon storage at above ground biomass was mangrove species Xylocarpus granatum (46,58 ton/indv) and the highest productivity was mangrove species Kandelia candel (10,793 ton/indv). Correlation (r) between above ground biomass carbon storage and productivity of mangrove species was 0.07 with 37% coefficient of determination. It can be concluded that 37% of above ground biomass carbon storage affected by the productivity of mangrove species.
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    Decomposition Rate of Mangrove Litter in Kuala Indragiri Coastal
    (2016-08-28) Mariana, Mariana; Felix, Feliatra; Sukendi, Sukendi; Nasution, Syafruddin
    This study was conducted in the mangrove forest located in the Kuala Indragiri coastal areas (Riau province–Indonesia) from January to February 2015. Mangrove litter leaf is organic substance that affects the fertility of mangrove ecosystem, and support the life of organisms within that forest. The mangrove represent as nursery ground, feeding ground, and spawning ground for various fish type, prawn and other marine organisms. This forest is also produce detritus that can be used as main foods source in marine ecosystem. The objectives of this research is to understand the decomposition rate of mangrove litter in the Kuala Indragiri mangrove forest. Data were analyzed by calculating the mean dry weight of the litter and decomposition rate was counted using an exponential rank function or absolute decomposition percentage of litter leaf per day. The highest rate of litter decomposition was found in station V 44.902% with a residence time 15, 930 days. The mean coefficient of litter decomposition rate was 0.058 with residence time 19, 571 days.
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    PERSEPSI MASYARAKAT PESISIR TERHADAP KONSERVASI HUTAN MANGROVE SEBAGAI PENYIMPAN KARBON
    (2016-07-13) Mariana, Mariana; Felix, Felitra; Sukendi, Sukendi; Nasution, Syafruddin
    Mangrove forest in the coastal area of Kuala Indragiri is one source of the livelihood of local people. The relation between communities and the existence of mangrove forests has led to the perception of the communities as an effort to maintain and to conserve mangrove forests. This research objective is to analyzed perceptions of coastal communities to the conservation of mangrove forests as a carbon sink. The perception of coastal communities to the conservation of mangrove forests in the coastal area of Kuala Indragiri captured using a questionnaire. The questionnaire used is a questionnaire - type rating scale, which is a question followed by columns that indicate the level - level refers to the Likert scale . The results of the analysis of questionnaires distributed in 95 respondents were divided in five observation stations showed perceptions of communities in coastal areas Kuala Indragiri on the extent and development of mangrove forests , some 34.82 % of the respondents strongly agreed and 59.78 % of the respondents agree that the vast mangrove forests reduced continuously. Public perception of the mangrove forest area declared is reduced, causing mangrove forest loss is due to land conversion impacts and damage mangrove forest loss results in lower earnings. Mangrove rehabilitation efforts, respondents declared failed .