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Journal : Dinamika Lingkungan Indonesia

Model Kelembagaan Terpadu Pencegahan Kebakaran Hutan Dan Lahan Di Kabupaten Kepuluan Meranti Provinsi Riau Jufri, Jufri; Sujianto, Sujianto; Amin, Bintal; Efriyeldi, Efriyeldi
Dinamika Lingkungan Indonesia Vol 5, No 2 (2018)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (501.211 KB) | DOI: 10.31258/dli.5.2.p.63-75

Abstract

Riau is one of the most vulnerable provinces to forest and land fires in Indonesia, Meranti Islands Regency Riau Province is one of the worst places. Forest and land fires in the Meranti Islands Regency occur during the dry season. Various prevention efforts have been carried out by the government. Meranti Islands Regency 60% is this peat area which causes opportunities for forest and land fires. This study analyzes: 1) the causes of forest and land fires in the Meranti Islands Regency, 2) the impact of forest and land fires on ecology, social and economy, 3) local wisdom owned by communities who are able to protect forests and land, 4) find prevention models forest and land fires based on integrated and effective institutions. This study uses a survey method. The data obtained were analyzed descriptively by using the mix methods approach by combining two forms of quantitative and qualitative approaches. Data analysis uses statistics with Pearson Correlation test and SWOT analysis. The results of the analysis concluded that the most dominant variables causing forest and land fires in the Meranti Islands Regency were socio-cultural conditions (69.06%) , this also has an impact on socio-cultural factors (62.68%). local wisdom in the community is one effort that can prevent forest and land fires, is the tradition of sago planting and bele kampung tradition. The results of the SWOT analysis produce an alternative S-O (Strenghts-Opportunity) strategy in cell 1 position with the power to take advantage of opportunities. The model for preventing forest and land fires based on integrated institutions is: 1) government, 2) research institutions are universities, 3) community institutions such as the Fire Concern Society (MPA).
Fitoakumulasi Logam Berat Pb dan Cr pada Rhizophora mucronata di Sekitar Kawasan Bekas Tambang Bauksit, Pulau Bintan Azizah, Diana; Hamidy, Rasoel; Mubarak, Mubarak; Efriyeldi, Efriyeldi
Dinamika Lingkungan Indonesia Vol 8, No 2 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (174.497 KB) | DOI: 10.31258/dli.8.2.p.147-153

Abstract

Bintan Island has a high potential for bauxite mining. Many ex-mining areas have not been reclaimed properly, resulting in erosion and accumulation of heavy metals Pb and Cr which are high in the sediment (red-mud) and deposited in the roots of mangrove forests on the coast of Bintan. Rhizophora mucronata is one of the species that dominates the Bintan mangrove forest. The purpose of this study was to determine the phytoaccumulation of Pb and Cr metals in R. mucronata in the former bauxite mining area ofBintan Island. This research was conducted by survey, digested and analysed using Atomic Absorption Spectrophotometer (AAS). The concentrationof Pb and Cr in the sediment, as well as the roots, stems and leaves of R. mucronata were used for the analysis of phytoaccumulation types. The results of the Pb concentration test were higher than Cr. Based on the sampling location, the concentration of Pb metal accumulation in the sediment is Tembeling <Sei Carang <Wacopek <Senggarang, while Cr metal is Tembeling <Wacopek <Sei Carang <Senggarang. The highest metals accumulation in R. mucronata was found in the roots (Pb = 3,3482 ppm, Cr = 0,7664 ppm), while the leaves (Pb = 1,1076 ppm, Cr = 0,0413 ppm) had the lowest concentration. Based on the type of accumulation, R. mucronata absorbs Pb metal with a rhizofiltration mechanism (TF <1), which means that the roots of R. mucronata effectively translocate Pb as a pollutant to its body from the soil. In addition, the bio-concentration factor (BCF) concentration of R. mucronata <1 indicates the role of R. mucronata as a plant that accumulates very little Pb (low accumulator/non-hyperaccumulator). This adaptation mechanism is important information in the rehabilitation of mangrove areas using R. mucronata, because it can still live and grow in an environment contaminated with Pb metal by absorbing a little Pb from the soil and translocating it effectively in its organs.
Strategi pengembangan ekowisata mangrove Bandar Bakau Dumai, Riau Mulyadi, Aras; Efriyeldi, Efriyeldi; Marbun, Burhan
Dinamika Lingkungan Indonesia Vol 8, No 1 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.671 KB) | DOI: 10.31258/dli.8.1.p.48-56

Abstract

Bandar Bakau Mangrove Ecotourism is one of the most attractive natural tourist destinations in Dumai City. As a reference for future development, this study aims to analyze the mangrove ecotourism development strategy of Bandar Bakau Dumai. Surveys to collect primary data have been carried out in the field and on managers of  Bandar Bakau Mangrove Ecotourism in June - November 2020. Meanwhile, secondary data were collected from the Dumai City Government and related literature. The data collected were analyzed descriptively, and to formulate a development strategy carried out using a SWOT analysis approach (Strengths, Weaknesses, Opportunities, Threats) from the identification of Internal factors (IFAS) and external factors (EFAS). To make mangrove ecotourism in Bandar Bakau Dumai a natural tourism place that can compete in the future, 4 (four) development strategies have been formulated, namely: 1) Development of Supporting and Supporting Facilities for Mangrove Ecotourism in Bandar Bakau Dumai, 2) Development of Mangrove Ecotourism Products in Bandar Bakau Dumai, 3) Strengthening the Role of Stakeholders in the Development of Mangrove Ecotourism in Bandar Bakau Dumai, and 4) Development of Conservation and Environmental Mitigation of Mangrove Ecotourism in Bandar Bakau Dumai.
Tiga dekade laju perubahan garis pantai di Kota Dumai Mulyadi, Aras; Hamidy, Rasoel; Musrifin, Musrifin; Efriyeldi, Efriyeldi; Jhonnerie, Romie
Dinamika Lingkungan Indonesia Vol 9, No 1 (2022)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (768.884 KB) | DOI: 10.31258/dli.9.1.p.25-31

Abstract

Mapping of coastline changes helps in coastal development and monitoring. The city of Dumai, on the east coast of Riau Province, has undergone significant and radical changes caused by the intervention of humans and nature over the past three decades. This study mapped and measured the rate of change of the coastline of Dumai City for 30 years. The Landsat (TM, and OLI) image series, 1990, 1999, 2008, and 2020 became a data source to generate coastlines through on-screen digitization techniques, then to study the temporal behavior of coastlines using the Digital Shoreline Analysis System (DSAS) and geographic information systems to describe the spatial and temporal variations of coastlines. The results showed that the coastline length during the observation ranged from 123,14 to 125,23 km, while the average accretion rate was 1.17 meters per year while the average abrasion rate was 2.04 meters per year. Those rates of change affected coastline expanded to the sea for 60,82 hectares and eroded 760,20 hectares coastline to the land.
Pertumbuhan Api-Api (Avicennia alba) dan Kelimpahan Epifauna Bentik di Kawasan Rehabilitasi Mangrove Desa Kedaburapat Kabupaten Kepulauan Meranti Efriyeldi, Efriyeldi; Mulyadi, Aras; Samiaji, Joko
Dinamika Lingkungan Indonesia Vol 8, No 2 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (313.7 KB) | DOI: 10.31258/dli.8.2.p.113-122

Abstract

The research was conducted in July - October 2020. Collection of data A. alba growth and abundance of benthic epifauna was carried out in the mangrove rehabilitated area of Kedabupat village, Kepulauan Meranti Regency. The aims of this study was to analyze the growth (stems height and diameter) of the mangrove A. alba species as a result of rehabilitation and abundance of benthic epifauna in the area. The method used in this research was a survey method, where data was obtained by directly to the research location. The data collected was data on the height and diameter of A. alba stems, density of macro epifauna species, and  water quality in the field, then followed by analysis of water and sediment samples in the laboratory. The results showed that the average increace in height of the stem by zone was 6.45-12.93 cm/month, meanwhile the average value of the increase in stem diameter by zone is 1.53-1.85 mm/month. There were 13 epifauna benthic species from 2 classes namely Gastropod and Malacostraca from mangrove rehabilitation. Gastropod class  that was Littoraria melanostoma, Nerita balteata and Sphaerassiminea miniata; from the malacostraca class that was Uca coarctata,  Metopograpsus latifrons, Ceonobita cavipes, and Clibanarius longitarsus. Benthic epifauna abundance values average ranged from 31.33-52.22 ind/m2.
Persepsi dan sikap masyarakat terhadap perlindungan dan pengelolaan mangrove di Kecamatan Sungai Apit Kabupaten Siak Fatonah, Siti; Hamidy, Rasoel; Mulyadi, Aras; Efriyeldi, Efriyeldi
Dinamika Lingkungan Indonesia Vol 9, No 1 (2022)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (274.517 KB) | DOI: 10.31258/dli.9.1.p.64-71

Abstract

Mangrove forest in Sungai Apit Sub District, Siak District, Riau is one of the mangrove ecosystems in Riau Province which has experienced a reduction in land area and is the widest in Siak Regency. This study aims to determine the perceptions and attitudes of the community in the protection and management of mangroves. The research was conducted in three villages in Sungai Apit Sub District, namely Rawa Mekar Jaya, Sungai Rawa and Mengkapan. Data was collected through observation and interviews with the community using mangroves. The results showed that the perception of the community in Sungai Apit towards the function and management of mangroves is classified as very good, while the attitude of the community towards the protection and management of mangroves is classified as good. The perception and attitude of the people of Rawa Mekar Jaya and Meng Kapan are better than the people of Sungai Rawa. Community involvement in rehabilitation activities is generally only at the time of the project and due to wages. The community has a high awareness of utilizing mangrove resources in a sustainable manner. The community has a high awareness of the protection and management of mangroves, but their involvement in rehabilitation activities requires money to compensate for the time and energy used. Therefore, alternative activities are needed that can increase funding sources and increase funding sources in local institutions related to mangroves.
Kondisi mangrove di pesisir timur pulau Jemaja Kepuluan Anambas Andrito, Wahyudi; Nasution, Syafruddin; Efriyeldi, Efriyeldi
Dinamika Lingkungan Indonesia Vol 7, No 2 (2020)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (640.776 KB) | DOI: 10.31258/dli.7.2.p.70-80

Abstract

 Mangrove ecosystems are one of three important ecosystems in the coastal areas that supports global warming mitigation efforts. The existence of mangrove forests is needed to reduce the increased CO2 concentrations in the atmosphere. However, the rise of the water temperatures and sea levels indirectly affects the presence and condition of mangrove forests in coastal areas. The purpose of this study is to determine the condition of the mangrove community on the East Coast of Jemaja, Anambas Archipelagoes Regency. The survey method  was used in this study and a series survey activities were conducted for a quadrant transect with a size of 10m by 10m in December 2019 - March 2020.The result shown that the five mangrove species were identified, such as Rhizophora apiculata, R. mucronata, Bruguiera gymnorrhiza, Ceriops tagal and Xylocarpus granatum. R. apiculata dominates with an important value index of 123.12%. While, the average density of mangroves and saplings in the study area was 3155 ± 785 individuals/ha and the average canopy cover was 84.03 ± 3.11%. With this finding, it can be concluded that the condition of mangroves in the East Coast of Jemaja is very dense and still in a good condition.