Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management)
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Oil palm plantations versus mammals and birds conservation: a case study in two oil palm plantations in West Kalimantan Province
Get PDFThe assessment of the oil palm plantations impact on biodiversity mostly compares oil palm plantations to natural forests. But in reality, most land cover type before oil palm plantations establishments are no longer primary forest. Observations were made on 2 large holding plantations (PSB) in West Kalimantan Province. Tracking data on the origin of land cover types was carried out by interview method and analysis of interpretation of land-satellite imagery. The results showed that the baseline PSB studied were shrubs/fields and secondary forests. The number of species (mammals and birds) in the oil palm area is higher than the baseline area. PSBs establishment that are originally in the form of shrubs/fields has affect in increasing diversity of mammals (3 species) and birds (11 species). The same results are also shown in areas that are originally in the form of secondary fields and forests, has also increased the number of species of mammals (5 species) and birds (18 species). Thus, it can be concluded that the land cover changes in 2 oil palm plantations studied has a positive impact on the mammals and birds’ species diversit
Sentarum langurs (Presbytis chrysomelas) demographic parameters in Sepandan Resort Area of Sentarum Lake National Park
Get PDFLutung Sentarum (Presbytis Chrysomelas spp cruciger) is a member of the Presbyis tribe. Langur Sentarum (Presbytis Chrysomelas Cruciger) is one of the endemic animals in West Kalimantan with unprotected status, but is vulnerable to extinction. The study was conducted to obtain data on the demographic parameters of animal populations and their management in the Sepandan Resort area. The research was conducted through field observations to obtain data on demographic parameters with the concentration count method based on consideration of the characteristics of species distribution and field conditions in the research area. Population size data collection was carried out at 15 observation points, which were spread across all habitats types in the research study area. Observations or population size calculations at one point were carried out three times, namely in the morning (06.00 – 08.00), afternoon (12.00 – 14.00) and afternoon (16.00 – 18.00), and three replicates were carried out. The results of data from Lutung sentarum at the Sepandan resort found 8 groups from 2 areas, namely in Pelaik hamlet 2 groups and in Kedungkang hamlet 6 groups. Each group relatively had 1 adult male. Total individuals found were 58 individuals consisting of: 8 adult males, 25 adult females, 5 juvenile males, 18 juvenile females and 2 chicks. The total number of adult males and juveniles is 13 individuals and the total number of females is 43 individuals. The results in the sex ratio calculation of the encounter of 8 groups consisting of 13 males and 43 females were composed of sex ratio values of 1: 3. Total natality value of 8 groups of langur sentarum is 0.08
Projection of further expansion of oil palm plantation in Jambi Province
Get PDFThe expansion of oil palm plantations has become of global concern. Jambi province in Indonesia is one of the regions experiencing a rapid shift in land use, and oil palm plantation, settlement, and agriculture has emerged as the primary force behind this shift. This study aims to project scenarios of future land-use change and expansion of oil palm plantation in Jambi Province in 2030, 2060, and 2100. Projections of land-use change scenarios are conducted using the Land Change Modeler (LCM) in which Cellular Automata Markov (CA-Markov) is the model base. The validation of model against historic land-use changes showed an overall kappa value of 0.97. In the no-conservation scenario assuming a continuation of the trends from 1990 to 2011, the forest area is continuing to decrease. . Oil palm would replace forest as dominant land-use cover in Jambi Province in 2100. Driving factors explaining the spatial distribution of oil palm plantation expansion include distance from forest, distance from road, and elevation. Our study shows the importance of government regulations to to slow or stop deforestation especially for forests near plantations
Investigating the solid waste recycling management
Get PDFGarbage is waste solid materials that are left over from the use of people and production and service institutions and are unusable. These seemingly inefficient sources are the most important urban pollutant in different amounts and in liquid and solid form and cause harm. and the citizens\u27 interest, but in the case of optimal management and use of these valuable resources as raw materials in addition to protecting the environment, reducing the level of pollution, reducing the amount of diseases and deaths, it can be considered the best driver of production activities, recycling management Household solid waste in Kabul city is handled according to municipal standards and regulations (collection, transfer, burial and reuse), which is the main goal of this research to investigate the effects of household solid waste management and recycling in Kabul city.
Since the nature of this research is descriptive-applicative, in order to collect information from two sources, the library and a questionnaire with a 7-point Likert scale from 384 citizens of the 15th district of Kabul city were randomly sampled and analyzed using spss software. First, the confidence level of the questionnaire of both variables was determined by Cronbach\u27s alpha method with the output coefficient (waste management 0.86 and recycling rate 0.82) and then its correlation intensity was determined by the Pearson method and also to predict the dependent variable from the linear regression function of the information received and investigated. And the dispute has been placed.
Pearson\u27s correlation analysis with 95% confidence level of the number placement (p=0.004, N=384, R=0.86) with a coefficient of determination of 0.73 and a statistical value (t) of 4.76, which is greater than the critical value of table t 2.3, shows the relationship There is a strong positive among the variables and it states that the increase in the amount of recycling and the decrease in the consumption of family solid waste depends on the improvement of waste management, in the same way, the beta coefficient of 0.59 and t=7.31>1.96 and sig<0.05 of linear regression were obtained. It shows that improving family solid waste management will reduce the amount of waste consumption and recycling by 59%, also the extracted information shows that about 97% of household waste is bought and collected by informal garbage collectors
Phytoplankton response to differences in light and the addition of phosphorus in Lake Cikaret
Get PDFThe composition and abundance of phytoplankton in the waters are strongly influenced by the supply of phosphorus and light intensity, so observations were made to obtain the optimum phosphorus concentration with a certain level of light which caused the high abundance of phytoplankton in Lake Cikaret. A 2 x 2 factorial design was used to see the effect of three levels of phosphorus (0.03 mg/L, 0.09 mg/L, and 0.15 mg/L) and three levels of light (30%, 70% and 100% luminance). on the abundance and composition of phytoplankton. The parameters observed were the abundance and composition of phytoplankton, dissolved oxygen, pH, temperature, turbidity, light intensity, and total phosphorus. The results showed that the addition of phosphorus in the waters increased the abundance of phytoplankton. Chlorophyta was high in the first week, then Bacillariophyta and Chlorophyta were high in the second week until the end of the observation. Synedra sp. (Bacillariophyta) tended to be high in abundance at a low light intensity, while Mougeotia sp. (Chlorophyta) tend to be high at all light intensities.Komposisi dan kelimpahan fitoplankton di perairan sangat dipengaruhi oleh suplai fosfor dan intensitas cahaya, sehingga dilakukan pengamatan untuk mendapatkan konsentrasi fosfor optimum dengan tingkat cahaya tertentu yang menyebabkan tingginya kelimpahan fitoplankton di Danau Cikaret. Rancangan faktorial 2 x 2 digunakan untuk melihat pengaruh tiga tingkat fosfor (0,03 mg/L, 0,09 mg/L, dan 0,15 mg/L) dan tiga tingkat cahaya (30%, 70% dan 100% pencahayaan) terhadap kelimpahan dan komposisi fitoplankton. Parameter yang diamati adalah kelimpahan dan komposisi fitoplankton, oksigen terlarut, pH, suhu, kekeruhan, intensitas cahaya, dan fosfor total. Hasil penelitian menunjukkan bahwa penambahan fosfor di perairan meningkatkan kelimpahan fitoplankton. Chlorophyta tinggi pada minggu pertama, kemudian Bacillariophyta dan Chlorophyta tinggi pada minggu ke dua sampai akhir pengamatan. Synedra sp. (Bacillariophyta) kelimpahannya cenderung tinggi pada intensitas cahaya rendah, sedangkan Mougeotia sp. (Chlorophyta) cenderung tinggi pada semua intensitas cahaya
Green awareness of female consumers towards sustainable products in Indonesia
Get PDFThe purpose of this research is to map how green awareness of female consumers on environmentally friendly products. The green product category can be seen from three indicators, namely; the usefulness of products for the environment, product expectations by consumer desires, and the use of raw materials that do not pollute the environment. Green products include a variety of products, ranging from food, beverages, garments/fashion, to household appliances. The research was conducted using quantitative methods in the form of quantitative surveys to map green consumers and female consumers about their decisions on environmentally friendly products. Based on the results of the quantitative descriptive analysis of the four main indicators of the green awareness variable, it is showing good results. Female consumers are interested in environmental issues and show their concern for the environment
The effect of open green space on the stress level of Bogor Botanical Garden visitors
Get PDFStress is a global phenomenon that has become a part of everyday life. Stress can be triggered by the presence of stressors. In Indonesia, the prevalence of psychological stress keeps increasing. This study aims to analyze the perceived restoration effect of green open parks on the stress levels of Bogor Botanical Gardens visitors. A survey of 100 visitors of Bogor Botanical Garden was conducted based on the Perceived Stress Scale. Data on respondent characteristics and stress levels were analyzed using descriptive analysis, the visitor\u27s characteristics that affected their stress levels were analyzed using stepwise linear regression and analysis of variance, and the effect of having a garden and the proximity to open green space on the visitor\u27s stress levels were identified using analysis of variance. The respondents who felt low, medium, and high-stress levels, were 22%, 73%, and 5% respectively. The majority of the respondents perceived Bogor Botanical Garden as restorative. Factors that significantly affect the stress level of respondents are age and purpose of visit. The older the respondent, the lower their stress level tends to be. Visitors who visit for exercise/health activities have significantly lower stress levels than for other visits. In this study, no significant relationship was found between garden ownership and proximity to green parks on the stress level of the respondents
Spectroscopic Analysis and Dynamics of Dissolved Organic Carbon from an Oil Palm Plantation Peatland
Get PDFDrainase yang diikuti dengan perubahan penggunaan lahan gambut untuk perkebunan kelapa sawit selalu dikaitkan dengan kehilangan karbon (C), salah satunya yaitu bahan organik terlarut (DOC). Proses analisis yang umum digunakan untuk menganalisis DOC yaitu metoda pembakaran pada suhu tinggi (HTC), yang membutuhkan peralatan yang mahal. Metoda alternatif dengan biaya yang rendah telah dikembangkan. Tujuan dari penelitian ini adalah untuk menentukan dan memvalidasi panjang gelombang spektrofotometer UV-Vis yang paling cocok untuk memperkirakan konsentrasi DOC dan mengevaluasi dinamikanya dari perkebunan kelapa sawit di lahan gambut Indonesia. Konsentrasi DOC diukur pada sampel air tanah dan air kanal pada panjang gelombang 254, 270, dan 350 nm dan hasil analisis tersebut kemudian divalidasi terhadap nilai referensi tersebut yang dihasilkan dari penggunaan metode HTC menggunakan Total Organic Carbon Analyzer (TOC Analyzer), berdasarkan analisis regresi sederhana. Hasil penelitian menunjukkan bahwa panjang gelombang yang paling sesuai untuk pendugaan konsentrasi DOC menggunakan spektrofotometer UV-Vis adalah 350 nm. Konsentrasi DOC di air tanah (35.67 ± 8.40 mg L-1) sekitar dua kali lebih besar daripada di air kanal (16.26 ± 4.15 mg L-1). Fluks DOC dari daerah penelitian berada pada kisaran 0.66-1.15 g C m-2 bulan-1, dengan rata-rata 0.85 g C m-2 bulan-1.Drainage following conversion of peatlands to oil palm plantations is always associated with carbon (C) loss, one of which is dissolved organic carbon (DOC). Analytical procedure commonly used to determine DOC is the high-temperature combustion (HTC) method, which requires an expensive instrument. An alternative low-cost method has been developed. The objectives of this research were to determine and validate the most suitable UV-Vis spectrophotometer’s wavelength for estimating DOC concentration and evaluating its dynamics from an oil-palm plantation Indonesian-peatland. The DOC concentrations were measured on ground water and canal water samples at wavelengths of 254, 270, and 350 nm and the analytical results were then validated against those reference values resulted from the use of HTC method using Total Organic Carbon Analyzer (TOC Analyzer), based on simple regression analysis. The results showed that the most suitable wavelength for estimating DOC concentration using UV-Vis spectrophotometer was 350 nm. The DOC concentration in groundwater (35.67 ± 8.40 mg L-1) were around two times greater than in canal water (16.26 ± 4.15 mg L-1). The DOC flux from the research area were at the range of 0.66 ˗ 1.15 g C m-2 month-1, with an average of 0.85 g C m-2 month-1
The diversity of the Genus Panulirus trafficked through the Fish Quarantine Station Controlling the Quality and Safety of Fishery Products, Aceh Province
Get PDFGenus Panulirus menjadi salah satu komoditas perikanan penting bagi Province Aceh. Dalam rangka keberlanjutan sumberdaya ini, perlu penerapan regulasi dengan baik. Tujuan kegiatan permagangan adalah untuk mengetahui jenis, jumlah dan asal daerah tangkap lobster yang dilalulintaskan melalui Stasiun Karantina Ikan Pengendalian Mutu dan Keamanan Hasil Perikanan Aceh. Kegiatan dilakukan pada bulan Februari hingga April 2022. Metode yang digunakan adalah dengan observasi kegiatan, dan pendataan jenis lobster yang dilalulintaskan. Terdapat 6 jenis lobster yang dilalulintaskan di Stasiun Karantina Ikan Pengendalian Mutu dan Keamanan Hasil Perikanan Aceh meliputi; Panulirus homarus, Panulirus ornatus, Panulirus penicillatus, Panulirus polyphagus, Panulirus longipes dan Panulirus versicolor. Setiap bulannya stasiun karantina melakukan pemeriksaan sebelum pengiriman rata-rata berjumlah 1929 individu per bulan. Jenis Panulirus versicolor merupakan jenis dengan dengan persentase tertinggi (34%) yang dikirimkan melalui. Asal penangkapan lobster terdiri dari 8 daerah yaitu Pulau Banyak (Aceh Singkil), Pulau Simeulue, Labuan Haji (Aceh Selatan), Meulaboh (Aceh Barat), Calang dan Lamno (Aceh Jaya), Banda Aceh dan Pulau Sabang.The genus Panulirus is one of the important fishery commodities for Aceh Province. In the context of the sustainability of these resources, it is necessary to apply regulations properly. The purpose of the apprenticeship activity is to determine the type, number and origin of the lobster catching area that is trafficked through the Fish Quarantine Station for Quality Control and Safety of Fishery Products in Aceh. The activity is carried out from February to April 2022. The method used is by observing activities, and collecting data on the types of lobsters that are trafficked. There are 6 types of lobster that are trafficked at the Fish Quarantine Station for Quality Control and Safety of Fishery Products in Aceh, including; Panulirus homarus, Panulirus ornatus, Panulirus penicillatus, Panulirus polyphagus, Panulirus longipes and Panulirus versicolor. Every month the quarantine stations carry out inspections before shipping an average of 1929 individuals per month. The type of Panulirus versicolor is the type with the highest percentage (34%) sent through. The origin of lobster catching consists of 8 areas, namely Banyak Island (Aceh Singkil), Simeulue Island, Labuan Haji (South Aceh), Meulaboh (West Aceh), Calang and Lamno (Aceh Jaya), Banda Aceh and Sabang Island
The role of adiwiyata school in the change of students\u27 knowledge, attitude, and behavior towards the environment
Get PDFEnvironmental problems and their solutions must be introduced to students from an early age through Environmental Education (PLH). One of PLH’s implementations is the Adiwiyata Program. The success of the Adiwiyata Program can be measured by examining differences in knowledge, positive attitudes, and positive behavior towards environmental problems and solutions. This study aimed to analyze quantitatively and qualitatively differences in knowledge, positive attitudes and positive behavior regarding the environment in school that has participated and that who has not participated in the Adiwiyata Program. Data were analyzed using a Likert scale with three categories: 1) good, 2) quite good, and 3) not good. Mann-Whitney U Test analysis was conducted to test the significance of the difference between the two groups of respondents. There was a difference in knowledge, attitudes, behavior and PLH scores in school that has participated in the Adiwiyata Program and that who has not. There was also a difference in student knowledge but not significant between schools participating in the Adiwiyata Program and not participating in the program. Students who participated in the Adiwiyata Program had better PLH scores than those who did not follow the Adiwiyata progra