KAJIAN KRITERIA NUTRIEN (NITROGEN DAN FOSFOR) SEBAGAI DASAR DALAM PENILAIAN STATUS TROFIK PERAIRAN WADUK MRICA BANJARNEGARA, JAWA TENGAH, INDONESIA

The study was conducted in Mrica Reservoir Banjarnegara Central Java during a year (March 2009 - February 2010). The research objectives were to assess the amount of nutrient (N and P) inputs from the catchment to the reservoir and the nutrient balance occured in the Mrica reservoir, examine the...

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Main Author: PIRANTI, AGATHA SIH
Format: Thesis
Published: [Yogyakarta] : Universitas Gadjah Mada 2012
Subjects:
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author PIRANTI, AGATHA SIH
author_facet PIRANTI, AGATHA SIH
author_sort PIRANTI, AGATHA SIH
collection UGM
description The study was conducted in Mrica Reservoir Banjarnegara Central Java during a year (March 2009 - February 2010). The research objectives were to assess the amount of nutrient (N and P) inputs from the catchment to the reservoir and the nutrient balance occured in the Mrica reservoir, examine the nutrient dynamics in Mrica reservoir spatially and temporally, to assess the relationship of nutrient concentrations to aquatic trophic status, and determine the appropriate criteria nutrient for the assessment of the trophic level of the Mrica reservoir as water located in tropical regions. This study used a survey method with purposive sampling technique in 17 (seventeen) locations including 4 (four) points in the river which were the reservoir inlet (Serayu, Merawu, Lumajang and Liangan channels), 11 (eleven) point in the waters of the reservoir and 2 points in the reservoir outlet and in the lacustrine zone of 0, 2, 5, 10, 20 and 30 meters depth. Research variables included nutrients concentration (TP, TN, NO3-, PO4, NH4+), chlorophyll and temperature, O2, CO2, HRT, pH and turbidity, and inflow as well as outflow of reservoirs. Data obtained were analysed by qualitatively and quantitatively methods. To assess the nutrient balance by calculating the different concentration between input and output of the reservoir. Distribution of TN and TP were analysed descriptively using charts and to know the difference between locations were tested using F test followed by HSD 5%. Correlation regression analysis was conducted to assess the relationship of nutrients and algal biomass. Nutrient criteria was made by extrapolating the regression line based on the empirical models. Comparison of Mrica reservoir's nutrient criteria with the sub trophic one was analysed descriptively. The conclusions were that the Mrica reservoir had the TN input of 374.623,08 tons and TP input of 41.117,18 tonnes higher than the output of 339.922,49 tons and 33.179,15 tons). Therefore Mrica reservoir had a surplus of TN and TP respectively of 34.700,59 tons (9,26%) and 7.938,02 tons (19,31%). The surplus was as a residual drift and then deposited into the sediments of Mrica Reservoir. Spatially TN and TP entered to the Mrica reservoir were distributed evenly from riverin zone to lacustrine zone. The high nutrient input from the DTA during rainy season led to the temporal distribution of TP was higher than dry season, while the pattern of dam operation on the target level had lead in the temporal distribution of TN was higher in the dry season than the rainy season. The availability of all kinds of nutrients (TN, TP, NO3-, NH4+, and PO4) determined the development of the algae biomass in the Mrica reservoir. Where as the types of nutrients that could be used as criteria for determining the algae development in the rainy season were TP and NH4+, whereas in the dry season was NO3-. The pattern of the development of algal biomass in Mrica reservoir was fluctuated so they could not be used to distinguish between mesotrophic and eutrophic phase but the hypereutrophic phase had already be clearly known.
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spelling oai:generic.eprints.org:993312016-04-14T07:26:40Z https://repository.ugm.ac.id/99331/ KAJIAN KRITERIA NUTRIEN (NITROGEN DAN FOSFOR) SEBAGAI DASAR DALAM PENILAIAN STATUS TROFIK PERAIRAN WADUK MRICA BANJARNEGARA, JAWA TENGAH, INDONESIA PIRANTI, AGATHA SIH Water Quality Engineering The study was conducted in Mrica Reservoir Banjarnegara Central Java during a year (March 2009 - February 2010). The research objectives were to assess the amount of nutrient (N and P) inputs from the catchment to the reservoir and the nutrient balance occured in the Mrica reservoir, examine the nutrient dynamics in Mrica reservoir spatially and temporally, to assess the relationship of nutrient concentrations to aquatic trophic status, and determine the appropriate criteria nutrient for the assessment of the trophic level of the Mrica reservoir as water located in tropical regions. This study used a survey method with purposive sampling technique in 17 (seventeen) locations including 4 (four) points in the river which were the reservoir inlet (Serayu, Merawu, Lumajang and Liangan channels), 11 (eleven) point in the waters of the reservoir and 2 points in the reservoir outlet and in the lacustrine zone of 0, 2, 5, 10, 20 and 30 meters depth. Research variables included nutrients concentration (TP, TN, NO3-, PO4, NH4+), chlorophyll and temperature, O2, CO2, HRT, pH and turbidity, and inflow as well as outflow of reservoirs. Data obtained were analysed by qualitatively and quantitatively methods. To assess the nutrient balance by calculating the different concentration between input and output of the reservoir. Distribution of TN and TP were analysed descriptively using charts and to know the difference between locations were tested using F test followed by HSD 5%. Correlation regression analysis was conducted to assess the relationship of nutrients and algal biomass. Nutrient criteria was made by extrapolating the regression line based on the empirical models. Comparison of Mrica reservoir's nutrient criteria with the sub trophic one was analysed descriptively. The conclusions were that the Mrica reservoir had the TN input of 374.623,08 tons and TP input of 41.117,18 tonnes higher than the output of 339.922,49 tons and 33.179,15 tons). Therefore Mrica reservoir had a surplus of TN and TP respectively of 34.700,59 tons (9,26%) and 7.938,02 tons (19,31%). The surplus was as a residual drift and then deposited into the sediments of Mrica Reservoir. Spatially TN and TP entered to the Mrica reservoir were distributed evenly from riverin zone to lacustrine zone. The high nutrient input from the DTA during rainy season led to the temporal distribution of TP was higher than dry season, while the pattern of dam operation on the target level had lead in the temporal distribution of TN was higher in the dry season than the rainy season. The availability of all kinds of nutrients (TN, TP, NO3-, NH4+, and PO4) determined the development of the algae biomass in the Mrica reservoir. Where as the types of nutrients that could be used as criteria for determining the algae development in the rainy season were TP and NH4+, whereas in the dry season was NO3-. The pattern of the development of algal biomass in Mrica reservoir was fluctuated so they could not be used to distinguish between mesotrophic and eutrophic phase but the hypereutrophic phase had already be clearly known. [Yogyakarta] : Universitas Gadjah Mada 2012 Thesis NonPeerReviewed PIRANTI, AGATHA SIH (2012) KAJIAN KRITERIA NUTRIEN (NITROGEN DAN FOSFOR) SEBAGAI DASAR DALAM PENILAIAN STATUS TROFIK PERAIRAN WADUK MRICA BANJARNEGARA, JAWA TENGAH, INDONESIA. PHd thesis, Universitas Gadjah Mada. http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=55720
spellingShingle Water Quality Engineering
PIRANTI, AGATHA SIH
KAJIAN KRITERIA NUTRIEN (NITROGEN DAN FOSFOR) SEBAGAI DASAR DALAM PENILAIAN STATUS TROFIK PERAIRAN WADUK MRICA BANJARNEGARA, JAWA TENGAH, INDONESIA
title KAJIAN KRITERIA NUTRIEN (NITROGEN DAN FOSFOR) SEBAGAI DASAR DALAM PENILAIAN STATUS TROFIK PERAIRAN WADUK MRICA BANJARNEGARA, JAWA TENGAH, INDONESIA
title_full KAJIAN KRITERIA NUTRIEN (NITROGEN DAN FOSFOR) SEBAGAI DASAR DALAM PENILAIAN STATUS TROFIK PERAIRAN WADUK MRICA BANJARNEGARA, JAWA TENGAH, INDONESIA
title_fullStr KAJIAN KRITERIA NUTRIEN (NITROGEN DAN FOSFOR) SEBAGAI DASAR DALAM PENILAIAN STATUS TROFIK PERAIRAN WADUK MRICA BANJARNEGARA, JAWA TENGAH, INDONESIA
title_full_unstemmed KAJIAN KRITERIA NUTRIEN (NITROGEN DAN FOSFOR) SEBAGAI DASAR DALAM PENILAIAN STATUS TROFIK PERAIRAN WADUK MRICA BANJARNEGARA, JAWA TENGAH, INDONESIA
title_short KAJIAN KRITERIA NUTRIEN (NITROGEN DAN FOSFOR) SEBAGAI DASAR DALAM PENILAIAN STATUS TROFIK PERAIRAN WADUK MRICA BANJARNEGARA, JAWA TENGAH, INDONESIA
title_sort kajian kriteria nutrien nitrogen dan fosfor sebagai dasar dalam penilaian status trofik perairan waduk mrica banjarnegara jawa tengah indonesia
topic Water Quality Engineering
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