Indonesian Journal of Applied Environmental Studies最新文献

{"title":"Biological and economic values of Dipterocarpaceae, the main timber forest product of Indonesia","authors":"W. Widiyono","doi":"10.33751/injast.v2i2.4016","DOIUrl":"https://doi.org/10.33751/injast.v2i2.4016","url":null,"abstract":"Dipterocarpaceae is known as a very important tree family both biologically and economically.  Its distribution around the world covers the areas of Peninsular Malaysia, the Philippines, Sumatra, Kalimantan, Java, Sulawesi, Maluku to Papua.  Dipterocarpaceae family has a high economic value, such as producing wood, balsam, resin, charcoal, fat, fruit, bark, essential oil, and camphor. Its products have very important roles for domestic use and export needs. As  representatives of Dipterocarpaceae, the economic value of Shorea Roxb. ex Gaertner f, Dipterocarpus Gaertner f, and Dryobalanops Gaertner f will be discussed. Considering the very important role of Dipterocarpaceae, both biologically and economically, it is necessary to handle it sustainably, through the following actions such as conservation of genetic resources, seed physiology, seed handling, seedling ecology, root symbiosis and nutrition, pest and disease, management of natural forest, and plantation, and also non-timber forest product from Dipterocarpaceae. Dipterocarpaceae dikenal sebagai famili pohon yang sangat penting baik secara biologis maupun ekonomis. Penyebarannya di seluruh dunia meliputi wilayah Semenanjung Malaysia, Filipina, Sumatera, Kalimantan, Jawa, Sulawesi, Maluku hingga Papua. Famili Dipterocarpaceae memiliki nilai ekonomi yang tinggi, seperti menghasilkan kayu, balsam, damar, arang, lemak, buah, kulit kayu, minyak atsiri, dan kapur barus. Produk-produknya memiliki peran yang sangat penting untuk kebutuhan domestik dan ekspor. Sebagai perwakilan Dipterocarpace, nilai ekonomi Shorea Roxb. ex Gaertner f, Dipterocarpus Gaertner f, dan Dryobalanops Gaertner f akan dibahas. Mengingat peranan Dipterocarpaceae yang sangat penting, baik secara biologis maupun ekonomis, maka perlu dilakukan penanganan secara berkelanjutan, melalui tindakan-tindakan seperti konservasi sumber daya genetik, fisiologi benih, penanganan benih, ekologi semai, simbiosis dan nutrisi akar, hama dan penyakit, pengelolaan hutan alam, dan perkebunan, serta hasil hutan bukan kayu dari Dipterocarpaceae.  ","PeriodicalId":191982,"journal":{"name":"Indonesian Journal of Applied Environmental Studies","volume":"28 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131894241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Overview and evaluation of the Indonesia's water resources management policies for food security","authors":"A. Pambudi","doi":"10.33751/injast.v2i2.3586","DOIUrl":"https://doi.org/10.33751/injast.v2i2.3586","url":null,"abstract":"Water and water resources must be maintained by their functions and benefits to meet the needs of all sectors and future generations. One important part of sustainable water resource management that is of considerable interest to the government is irrigation which aims to achieve food security. Food security in Indonesia Development in the field of food security and poverty alleviation in rural areas is one of the leading sectors in the nine national development priority agendas contained in “Nawa Cita”. The development of food security in Indonesia faces many complex problems, such as irrigation infrastructures maintenance, regulations, land use change, population, policy implementation, coordination among stakeholders and also budget issues. The method in this study is a qualitative method through the literature review related to the management of water resources for food security in Indonesia. This paper seeks to evaluate the development irrigation policies as part of sustainable water management that supports food security in Indonesia. Literature sources are 5 main regulations, 5 papers and some government reports. To support increased food security, the direction of the Indonesian Government's policy in strengthening food security from the irrigated agricultural sector is realized through a strategy to increase production capacity and improve irrigation network services. The problem of the availability of irrigation water must be addressed quickly by upstream conservation, maximizing capacity through normalization of existing reservoirs, and continuing to build dams to have water storage containers that can accommodate planting season throughout planting. Air dan sumber daya air harus dijaga fungsi dan manfaatnya untuk memenuhi kebutuhan semua sektor dan generasi mendatang. Salah satu bagian penting dari pengelolaan sumber daya air berkelanjutan yang cukup menarik perhatian pemerintah adalah irigasi yang bertujuan untuk mencapai ketahanan pangan. Di Indonesia, pembangunan di bidang ketahanan pangan dan pengentasan kemiskinan di pedesaan merupakan salah satu sektor unggulan dalam sembilan agenda prioritas pembangunan nasional yang tertuang dalam “Nawa Cita”. Pembangunan ketahanan pangan di Indonesia menghadapi banyak masalah yang kompleks, seperti pemeliharaan infrastruktur irigasi, regulasi, perubahan penggunaan lahan, kependudukan, implementasi kebijakan, koordinasi antar pemangku kepentingan dan juga masalah anggaran. Metode dalam penelitian ini adalah metode kualitatif melalui studi pustaka terkait pengelolaan sumber daya air untuk ketahanan pangan di Indonesia. Tulisan ini berupaya mengevaluasi kebijakan pembangunan irigasi sebagai bagian dari pengelolaan air berkelanjutan yang mendukung ketahanan pangan di Indonesia. Sumber literatur adalah lima peraturan utama, lima makalah dan beberapa laporan pemerintah. Untuk mendukung peningkatan ketahanan pangan, arah kebijakan Pemerintah Indonesia dalam memperkuat ketahanan pangan dari sektor pe","PeriodicalId":191982,"journal":{"name":"Indonesian Journal of Applied Environmental Studies","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121754217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Think Globally, Act Locally – publishing amidst global summits","authors":"D. Priatna, K. Monk","doi":"10.33751/injast.v2i2.4242","DOIUrl":"https://doi.org/10.33751/injast.v2i2.4242","url":null,"abstract":"We are very pleased to present InJAST Volume 2 Number 2 October 2021 at this exciting time for national and global focus on applied environmental studies. This latest edition contains reviews and research articles such as “Traditional knowledge of biodiversity in the community surrounding Giam Siak Kecil-Bukit Batu Biosphere Reserve, Riau, Indonesia” and “Overview and evaluation of Indonesia's water resources management policies for food security”. In addition, our guest editorial explores the topic of “Government, private, and local communities in ecosystem restoration governance and practices”. This editorial reminds us all that we are now in the first year of the UN Decade on Ecosystem Restoration (2021-2030), which challenges everyone to massively scale up restoration efforts focussed on our degraded ecosystems.","PeriodicalId":191982,"journal":{"name":"Indonesian Journal of Applied Environmental Studies","volume":"20 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125950998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The results of applied research for solutions to environmental problems, expected!","authors":"D. Priatna, K. Monk","doi":"10.33751/INJAST.V2I1.3335","DOIUrl":"https://doi.org/10.33751/INJAST.V2I1.3335","url":null,"abstract":"With this issue, the Indonesia Journal of Applied Environmental Studies (InJAST) enters its second year, having been first published in April 2020 just as the Covid-19 pandemic was spreading globally. In the first two issues, InJAST published 13 articles, which were the results of research and ideas from academia, researchers from the Indonesian Institute of Sciences (LIPI) and members of conservation NGOs. Within its first year, the InJAST website has been visited by around 1,500 visitors from 50+ countries.  Although the majority were from Indonesia, 30% were from across Europe, Asia, the Americas, and Africa, and included the USA, UK, Australia, and India.One of InJAST's missions is to provide a vehicle for academia (students and lecturers), members of environmental NGOs, and young researchers, particularly from Indonesia, who are just starting to publish their ideas, literature reviews and research findings or articles in scientific journals. InJAST was also developed to accommodate scientific papers related to broader environmental topics, but as yet, most articles have focused on plant/wildlife ecology, nature conservation, and forest restoration (61%). Others were the result of the studies on environmental education (8%) and on the UN Sustainable Development Goals (SDGs) and other environmental issues (31%).As we start the third decade of the 21st century, the environmental challenges we face are ever more complex and demanding. The UN’s global action plan for the next 10 years set out in the \"UN's 2030 Agenda for Sustainable Development\", puts forward special measures to achieve a world that is fairer, more prosperous, and more respectful of the environment. The main global environmental challenges that, according to the UN, must be resolved in this decade, are climate change mitigation and adaptation, pollution problems and their effects on health, protecting oceans, the energy transitions and renewables, a sustainable food model, protecting biodiversity, sustainable urban development and mobility, hydric stress and water scarcity, extreme meteorological phenomena, and overpopulation and waste management. As academics, environmental researchers, and members of environmental NGOs, we can and should support the UN agenda by seeking the solutions to these major global environmental problems that affect all of us. We do this by carrying out relevant research and, just as importantly, publishing them in scientific journals so that we can disseminate our findings as widely as possible and suggested interventions can be trialed and then implemented on the ground.This new issue of InJAST contains several papers focusing on plant ecology, endangered species conservation, and forest restoration, all of which are closely related to one of the main global problems identified by the UN, namely protecting biodiversity. Another paper analyses determinants and typology of hydrometeorological disasters that may relate to the problem of extreme meteorolog","PeriodicalId":191982,"journal":{"name":"Indonesian Journal of Applied Environmental Studies","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123935091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamics of vegetation structure and composition within early regeneration forest in the Danau Bangko Protected Area, Jambi, Indonesia","authors":"A. Sadili, D. Priatna, S. Sutanto","doi":"10.33751/INJAST.V2I1.2891","DOIUrl":"https://doi.org/10.33751/INJAST.V2I1.2891","url":null,"abstract":" An analysis of the growth dynamics of a 1-ha  (100 m x 100 m) permanent plot was carried out in the Danau Bangko Protected Area (DBPA) in March 2020. DBPA is part of the industrial plantation forest concession of PT Rimba Hutani Mas (PT RHM) in Jambi Province. The study aims to determine the dynamics of vegetation structure and composition between 2018 and 2020 in early regeneration forest. All trees tagged in 2018 were remeasured in 2020. Trees that had not been tagged previously but were 10 cm in diameter at breast height (DBH) were identified as a new recruit and tagged with a new number. Observations and data analysis were carried out on three stages of growth phases, namely in the tree phase ( 10 cm DBH), sapling phase (10 cm DBH), and seedling phase (height 1.5 m). The results showed that the number of species, genera, and families within the tree and sapling phases were high, but were low in the seedling phase. The dominant species in the tree phase in 2018,  Alseodaphne bancana,  had been  replaced by Archidendron bubalinum  in 2020, whereas the dominant species in the sapling phase (Rothmania sp.) and seedling phase (Aporusa microsphaera) remained the same from  2018  to 2020 . Mortality rates in all growth phases (tree, sapling and seedling) together is 4.67%. Recruitment into the tree phase from 2018 to 2020 was 2.67%,  consisting of eight species, eight genera, and seven families. Within one hectare permanent plot, all members of each tree species were distributed randomly. The vertical structure of the forest area is dominated by stratum C (4-20 m height). The results of hypothesis testing for each phase (tree, sapling, seedling) were different, however overall the results showed that the plot structure and composition had changed. Studi dinamika hutan dilakukan di Kawasan Lindung Danau Bangko (KLDB) pada Maret 2020 dengan menggunakan pendekatan plot permanen seluas satu hektar (100 m x 100 m). KLDB merupakan bagian dari konsesi hutan tanaman industri PT Rimba Hutani Mas (PT RHM) di Provinsi Jambi. Penelitian ini bertujuan untuk mengetahui dinamika struktur dan komposisi vegetasi antara pengukuran tahun 2018 dan 2020, khususnya pada areal dengan tutupan Belukar Tua (BT). Diameter semua pohon yang telah diberi tanda nomor pada tahun 2018 diukur kembali. Pohon yang belum diberi tanda sebelumnya tetapi diameternya 10 cm setinggi dada (DBH) ditetapkan sebagai rekrutmen baru dan diberi tanda dengan nomor baru. Pengamatan dan analisis data dilakukan terhadap tiga tahap tahap pertumbuhan, yaitu tingkat pohon (10 cm DBH), tingkat pancang (10 cm DBH), dan tingkat semai (tinggi 1,5 m). Hasil penelitian menunjukkan bahwa jumlah spesies, jumlah marga, dan jumlah famili pada tingkat pohon dan pancang tinggi, sedangkan pada tingkat semai rendah. Jenis dominan pada tingkat pohon pada tahun 2018 adalah Alseodaphne bancana telah digantikan oleh Archidendron bubalinum pada tahun 2020, sedangkan pada tingkat pancang (Rothmania sp) dan tingkat semai (A","PeriodicalId":191982,"journal":{"name":"Indonesian Journal of Applied Environmental Studies","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132861390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Composition and structure of a lowland forest in the core zone of the Bukit Duabelas National Park, Jambi, Indonesia","authors":"Azwar Anas, K. Kartawinata, N. Nisyawati","doi":"10.33751/INJAST.V2I1.2861","DOIUrl":"https://doi.org/10.33751/INJAST.V2I1.2861","url":null,"abstract":"The objective of the study was to obtain data on composition and structure of the forest in the midsection of the Bukit Duabelas National Park core zone, designed to complement the existing data and  provide new information  potentials for the management of the park  core zone. The study was carried out in October-November 2012. Observations were made on plots of one hectare (100 m x 100 m), which was divided into 100 subplot, measuring 10 m x 10 m each. Enumeration  of tree species with  diameters ≥ 10 cm revealed that as many as 540 individuals were recorded, consisting of 89 species and 36 families, with a total  basal area of 30.837 m2 and  only three species of Dipterocarpaceae were registered. The forest had a low diversity as indicated by low species richness, much lower than in the  undisturbed lowland  primary forests in the Batang Gadis National Park in North Sumatra, where similarity was very low (5.9 %).  The forest in the plot was designated as the  Dacryodes rostrata- Shorea leprosula Association,  named after two species with highest importance values, thus the dominant. The structure and species composition pointed to the regenerating  forest after heavy disturbances.  The forest has been  undergoing  slow natural succession,  leading to  the formation of the forest similar to the original climax forest. Natural recovery through succession could be enhanced and assisted by means of ecological restoration, through planting of tree species characteristics of forests in Jambi, including  species of Dipterocapaceae, useful species having values to maintain the livelihood of the indigenous native tribe Suku Anak Dalam  and rare, endemic other species having  high conservation values. Tujuan studi  ini adalah  untuk memperoleh data tentang komposisi dan struktur hutan di bagian tengah zona inti Taman Nasional Bukit Duabelas. Studi   dirancang untuk melengkapi data yang telah ada dan untuk menyajikan informasi baru yang berpotensi untuk digunakan dalam pengelolaan zona inti taman nasional. Penelitian dilaksanakan pada bulan Oktober-November 2012 dalam petak seluas satu hektare (100 m x 100 m), yang dibagi menjadi 100 anak-petak dengan ukuran masing-masing 10 m x 10 m.   Pencacahan pohon dengan diameter ≥ 10 cm  menghasilkan 540 batang, yang terdiri atas 89 jenis dan 36 suku, dengan luas bidang dasar total 30.837 m2 dan hanya tercatat  tiga jenis Dipterocarpaceae. Keanekaragaman jenis hutan rendah,  seperti  ditunjukan oleh  rendahnya kekayaan jenis, jauh lebih rendah dibandingkan dengan  hutan primer yang tidak terganggu di Taman Nasional Batang Gadis di Sumatra Utara, yang mempunyai  kesamaan hanya 5,9 % dengan Taman Nasional Bukit Duabelas.  Berdasarkan dua jenis dominan dengan nilai kepentingan tinggi, komunitas pohon dalam petak dinamakan Asosiasi Dacryodes rostrata- Shorea leprosula. Struktur dan komposisi jenis menunjukan status hutan sebagai hutan yang sedang beregenerasi setelah mengalami gangguan. Hutan sedang mengalami suksesi ","PeriodicalId":191982,"journal":{"name":"Indonesian Journal of Applied Environmental Studies","volume":"725 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133251390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The occurrence of Sumatran tiger (Panthera tigris sumatrae) in an industrial plantation forest area, North Sumatra, Indonesia","authors":"P. Patana, Meta Winda Saputri, King Marpatasino","doi":"10.33751/INJAST.V2I1.3079","DOIUrl":"https://doi.org/10.33751/INJAST.V2I1.3079","url":null,"abstract":"Sumatran tiger lives in the remaining forests on the Sumatra island, both in conservation and production areas. There are not many tiger monitoring activities conducted in production forest. Using camera traps this occupancy survey of Sumatran tiger (Panthera tigris sumatrae) carried out in a plantation forest area of PT. Toba Pulp Lestari (PT. TPL)  to obtain information and monitor tiger presence in the area.  However, there were no Sumatran tigers captured by the camera traps during the occupancy activities. The existence of Sumatran tiger was proven by the finding of footprints and scrapes. Other species were photographed by the camera traps, such as marbled cat ((Pardofelis marmorata), pig-tailed monkey (Macaca nemestrina), treeshrew (Tupaia sp.), Asian palm civet (Paradoxurus hermaphroditus), lizards (Eutropis sp.), Hoogerwerf’s pheasant (Lophura hoogerwerfi), wood mouse (Apodemus sylvaticus) as well as birds. It is assumed that the Sumatran tiger didn’t cross the location of research during the camera installation period. However, there are several other reasons why Sumatran tigers weren’t captured by camera traps, such as the camera traps observation time was too short and didn’t cover a larger area, so it lessens the opportunity of encounter with Sumatran tiger.Harimau Sumatera hidup di hutan yang masih tersisa di pulau Sumatera, baik di kawasan hutan konservasi maupun hutan produksi. Kegiatan pemantauan harimau di hutan produksi belum banyak dilakukan. Dengan menggunakan camera trap, survei okupansi harimau sumatera (Panthera tigris sumatrae) ini dilakukan di areal  konsesi hutan tanaman industri PT. Toba Pulp Lestari (PT. TPL) untuk mendapatkan informasi dan memantau keberadaan harimau di kawasan tersebut. Namun, tidak ada harimau sumatera yang terfoto oleh kamera trap selama kegiatan survei okupansi. Keberadaan harimau sumatera dibuktikan dengan ditemukannya jejak tapak dan cakaran. Selain itu, terdapat ppesies lain yang terfoto oleh kamera trap, seperti kucing batu ((Pardofelis marmorata), beruk (Macaca nemestrina), tupai tanah (Tupaia sp.), musang pandan (Paradoxurus hermaphroditus), kadal (Eutropis sp.), sempidan aceh (Lophura hoogerwerfi), tikus hutan (Apodemus sylvaticus) serta burung. Diasumsikan bahwa harimau sumatera tidak melintasi lokasi penelitian selama masa pemasangan kamera. Namun, terdapat beberapa alasan lain mengapa harimau sumatera tidak terfoto kamera trap, seperti waktu pengamatan kamera trap yang terlalu singkat dan tidak mencakup area yang lebih luas, sehingga memperkecil peluang perjumpaan dengan harimau sumatera.","PeriodicalId":191982,"journal":{"name":"Indonesian Journal of Applied Environmental Studies","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120971065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prediction of expected genetic gain in progeny test of Samama [Anthocephalus macrophyllus (Roxb.) Havil.] in West Seram District, Maluku Province, Indonesia","authors":"Ambar Dwi Suseno, Yossa Istiadi, S. Rahayu","doi":"10.33751/INJAST.V2I1.2862","DOIUrl":"https://doi.org/10.33751/INJAST.V2I1.2862","url":null,"abstract":"The research objective is to find out genetic variation, estimated heritability value and the expected genetic gain of Samama [Anthocephalus macrophyllus (Roxb.) Havil.] on variation in  stem diameter and plant height as superior seed producers. The research was conducted in Uraur Village, West Seram Regency, Maluku Province. The trials consisted of 80 families. All of the trials were laid out in randomized complete block designs (RCBD), 4-trees plots with 4 replications (blocks) at spacing of 5m×2m. Data collection was carried out for 2 months (February to March 2020) and was focused on observing growth variations and genetic parameters in the progeny trial block at 4 years of age including plant height and diameter at breast height. The results of this study indicate that there are variations in growth, where the Anova test results show very significant differences in the plant height parameters namely Family (F = 3.417 p 0.01), Block (F = 437.465 p 0.01) and Family and Block Interactions (F = 3.351 p 0.01). The stem diameter parameters also showed very significant differences, namely Family (F = 2.785 p 0.01), Block (F = 353.095 p 0.01) and Family and Block Interaction (F = 2.611 p 0.01). The value of family heritability and individual heritability on plant height characters belonged to a high category with a family heritability value of 0.7213 and individual heritability value of 0.8811, while the stem diameter character for individual heritability was high with a value of 0.4406 but family heritability was moderate with value of 0.5204. The value of genetic correlation was high and positive and generally shows a greater value than the phenotypic correlation. Genetic correlation values ranged from 0.967 while phenotypic correlation values ranged from 0.8944. The highest selection priority was found in the height of the stem with a weight constant of 0.239. Predicted expected genetic gain was 3.0% for diameter parameter and 3.2% for height parameter.Objektif dari penelitian ini adalah menemukan variasi genetik, taksiran nilai heritabilitas serta peluang perolehan expected genetic gain tanaman Samama [Anthocephalus macrophyllus (Roxb.) Havil.] pada variasi diameter dan tinggi pohon sebagai penghasil benih unggul.  Penelitian dilakukan di Desa Uraur Kabupaten Seram Bagian Barat Provinsi Maluku. Percobaan ini menggunakan 80 famili. Penelitian ini dibangun dengan desain randomized completely block design (RCBD), jarak tanam 5 x 2 m, 4 ulangan (blok) dan 4 treesplot. Pengumpulan data dilakukan selama 2 bulan (Februari sampai dengan bulan Maret 2020) memfokuskan pada pengamatan variasi pertumbuhan dan parameter genetik yang berada di blok uji keturunan pada umur 4 tahun meliputi tinggi dan diameter setinggi dada. Hasil Penelitian ini menunjukkan bahwa terdapat variasi pertumbuhan, dimana dari hasil uji Anova menunjukkan perbedaan sangat nyata pada parameter tinggi yaitu Famili (F=3,417 p0,01), Blok (F=437,465 p0,01) dan Interaksi Famili dan Blok (F=","PeriodicalId":191982,"journal":{"name":"Indonesian Journal of Applied Environmental Studies","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127829023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sequential explanatory analysis of environmental awareness towards responsible environmental behavior (REB) of high school students in Depok City, West Java, Indonesia","authors":"Novia El Savada, E. Suhardi, Rita Istiana","doi":"10.33751/INJAST.V2I1.2579","DOIUrl":"https://doi.org/10.33751/INJAST.V2I1.2579","url":null,"abstract":"Objective of this study is to obtain information about the interrelationship between environmental awareness and the responsible environmental behavior of high school students. Research conducted toward students of the Masjid Terminal  High School (SMA) at Depok City in December 2019 to July 2020 with samples of 111 respondents by proportional random sampling technique. A mix-method was employed in this study, which is a combination of quantitative and qualitative methods as sequential explanatory. Collection of quantitative data was conducted using a questionnaire with rating scale for X and Y variables. The validity test used Pearson's product moment and the reliability test used alpha Cronbach. The analysis of quantitative data with a prerequisite test in the form of a normality test employed the Kolmogorov-Smirnov test and a homogeneity test using a Levine statistic. Testing the data hypothesis was using the correlation test with Pearson product moment using SPSS 26. Qualitative research data was obtained from the interviews, and the data was analyzed by reducing data, presenting data and drawing conclusions. The results showed that there was a positive correlation between environmental awareness and responsible environmental behavior with the regression equation Ŷ = 99.939 + 0.161x with a correlation coefficient of r = 0.195 and r2 of 3.80%. The contribution of r2 means that 3.80% of responsible environmental behavior is influenced by environmental awareness, while 96.20% is influenced by other factors. Based on above results, can be conclude that there are positive correlation between environmental awareness and responsible environmental behavior which influenced by the factors of family background, habits, information, as well as social environment.Tujuan penelitian ini adalah untuk memperoleh informasi tentang hubungan antara kesadaran lingkungan dengan perilaku tanggung jawab lingkungan pada siswa SMA. Penelitian dilakukan terhadap siswa sekolah (SMA/High School) Masjid Terminal, Kota Depok, Jawa Barat, pada bulan Desember 2019 hingga Juli 2020 dengan jumlah sampel 111 responden dengan teknik proporsional random sampling. Mix-method digunakan dalam penelitian ini, yang merupakan kombinasi antara metode kuantitatif dan kualitatif sebagai sequential explanatory. Pengumpulan data kuantitatif dilakukan dengan menggunakan kuesioner dengan skala sikap (rating scale) untuk variabel X dan Y. Uji validitas menggunakan Pearson’s product moment dan uji reliabilitas menggunakan alpha Cronbach. Analisis data kuantitatif dengan uji prasyarat berupa uji normalitas menggunakan uji Kolmogorov-Smirnov dan uji homogenitas menggunakan statistik Levine. Pengujian hipotesis data menggunakan uji korelasi dengan Pearson’s product moment menggunakan SPSS 26. Data penelitian kualitatif diperoleh dari wawancara, dan data dianalisis dengan mereduksi data, menyajikan data dan menarik kesimpulan. Hasil penelitian menunjukkan bahwa terdapat hubungan positif antara kes","PeriodicalId":191982,"journal":{"name":"Indonesian Journal of Applied Environmental Studies","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122245875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Legislation study methods to save the environment","authors":"T. H. Purwaka","doi":"10.33751/INJAST.V2I1.2189","DOIUrl":"https://doi.org/10.33751/INJAST.V2I1.2189","url":null,"abstract":"This paper provides an overview of the different methods available to critical analyse existing  environmental laws and their potential for achieving genuine environmental change.  It highlights  how  misinterpretation of the substance of laws and regulations, malfunction of legislation, disagreement among stakeholders in the application of available legal instruments and the absence of monitoring, control, and surveillance can result in inappropriate application of laws, contributing to misuse of natural resources and the environment decline. It outlines four methods of legal analysis to review the efficacies of existing laws to identify areas potential for legal reform these are; analysis of legal content, legal functions, legal instruments, and legal monitoring, control and surveillance.Makalah ini memberikan gambaran umum tentang berbagai metode yang tersedia untuk menganalisis secara kritis undang-undang lingkungan yang ada dan potensinya untuk mencapai perubahan lingkungan asli. Tulisan ini menyoroti bagaimana salah tafsir substansi undang-undang dan peraturan, ketidak berfungsinya undang-undang, ketidak sepakatan di antara para pemangku kepentingan dalam penerapan instrumen hukum yang tersedia dan tidak adanya pemantauan, kontrol, serta pengawasan, yang dapat mengakibatkan penerapan undang-undang yang tidak tepat, berkontribusi pada penyalah gunaan sumber daya alam, dan penurunan kualitas lingkungan. Ini menguraikan empat metode analisis hukum untuk meninjau efektivitas hukum yang ada untuk mengidentifikasi bidang yang berpotensi untuk reformasi hukum; analisis muatan hukum, fungsi hukum, perangkat hukum, serta pemantauan hukum, kontrol dan surveillance.","PeriodicalId":191982,"journal":{"name":"Indonesian Journal of Applied Environmental Studies","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115534547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}