scholarly journals Ekologi Pohon Kluwak/Pakem (Pangium edule Reinw.) di Taman Nasional Meru Betiri, Jawa Timur

2016 ◽  
Vol 14 (1) ◽  
pp. 33
Author(s):  
N. M. Heriyanto ◽  
Endro Subiandono

<p>The ecological aspects of kluwak/pakem tree (Pangium edule Reinw) were observed at three location namely Pakeman, Sumber Salak and Sumber Gadung, Sub section II of Conservation Regional Office, Ambulu-Meru Betiri National Park, East Java in October-December 2006. Three transect line measuring 20 m x 1000 m were established accrossed the slope in which observation plots were set up by employing purposive random sampling procedure. The result showed that most of Pangium habitat was found in steep area along the river. Association around the kluwak/pakem trees includes besule trees/Chydenanthus excelsus Miers. Important Value Index (IVI) 28.5%, and wining trees/Pterocybium javanicum R. Br. (IVI 20%). However, wining trees was the most closest association with Pangium vegetation. Biophyisical information of the Pangium vegetation were as follows: 24-30oC daily temperature, 50-80% humidity, 10-65% slope, and 15-306 m altitude. The soil is Latosol with pH 5.5-6.5. Harvesting of fruit of Pangium trees by community surrounding the forest had no negative impact to the trees but this activity should be managed accordingly to avoid disturbing tree generation.</p><p> </p><p><strong>Abstrak</strong></p><p>Penelitian dilakukan pada bulan Oktober-Desember 2006 di blok Pakeman, blok Sumber Salak, dan blok Sumber Gadung Subseksi II Ambulu, Taman Nasional Meru Betiri, Jawa Timur, untuk mengetahui beberapa aspek ekologi pohon kluwak/pakem (Pangium edule Reinw.). Pengumpulan data menggunakan metode pengukuran pada jalur berpetak dengan lebar jalur 20 m dan panjang 1.000 m, jalur memotong lereng dan jumlah jalur pengamatan 3 jalur. Petak-petak penelitian ditetapkan secara sengaja dengan metode purposive sampling, di mana pengukuran dilakukan pada tempat-tempat yang terdapat pohon kluwak/pakem. Hasil penelitian menunjukkan bahwa habitat kluwak/pakem di Taman Nasional Meru Betiri banyak dijumpai di sepanjang pinggiran aliran air dan topografi agak curam. Komposisi vegetasi di sekitar pohon kluwak/pakem banyak dijumpai jenis besule (Chydenanthus excelsus Miers) dengan Indeks Nilai Penting (INP) 28,5% dan wining (Pterocybium javanicum R. Br.) dengan INP 20%. Lingkungan fisik yang berkaitan erat dengan kluwak/pakem adalah suhu antara 24-30oC, kelembaban udara 50-80%, kemiringan lahan 10-65%, dan ketinggian tempat di atas permukaan laut 15-306 m. Jenis tanah Latosol dengan tekstur geluh lempungan dengan pH 5,5-6,5. Wining merupakan jenis tumbuhan yang mempunyai asosiasi kuat dengan kluwak/pakem, yang ditunjukkan oleh nilai Indeks Ochiai mendekati nilai satu dan di lapang ditemukan secara bersama-sama dengan pohon kluwak/pakem. Pemanenan buah kluwak/pakem oleh masyarakat tidak berpengaruh buruk pada pohonnya, namun perlu dikelola dengan baik agar tidak mengganggu regenerasi.</p>

2007 ◽  
Vol 11 (2) ◽  
pp. 65 ◽  
Author(s):  
N. M. Heriyanto ◽  
R. Garsetiasih

<p>Ecological Study of Burahol Tree (Stelechocarpus burahol) Thomson at Meru Betiri National Park, East Java. The purpose of this research was to know the ecology of burahol tree (S. burahol). This research was conducted at Lodadi, Sub Section II of Conservation Regional Office, Ambulu-Meru Betiri National Park, East Java in Desember 2004. Data collection were using purposive random sampling to set the plots and transect line method to make a plot acrossed the slope. The size of plot was 20 m in width and 1.000 m in length, total of plot observation were three plots. The result showed that most of burahol habitat found at surrounding river with steep slope. The vegetative composition around burahol trees could be found Chydenanthus excelsus trees (IVI/important value index = 67.9%), and Sandoricum koetjape trees (IVI = 24.2%). However, C. excelsus tree was the closest asociation with burahol, because it always be found together with burahol. Physical environment that burahol trees found, showed that temperature is 26- 30oC, humidity is 50-85%, the slope of the land was 10-50% and the altitude was 10-210 m. The kind of soil was Latosol with 5.5-6.5 acidity. Regeneration of burahol trees was done by bat (Pteropus vampirus) and surface run of.</p><p> </p><p><strong>Abstrak</strong></p><p>Penelitian ini bertujuan untuk mengetahui ekologi pohon burahol (S. burahol). Penelitian dilakukan pada bulan Desember 2004 berlokasi di blok Lodadi Subseksi II Ambulu, Taman Nasional Meru Betiri (TNMB), Jawa Timur. Pengumpulan data dilakukan dengan menggunakan metode pengukuran jalur berpetak dengan lebar jalur 20 m dan panjang 1.000 m. Jalur diletakkan memotong lereng dan jumlah jalur pengamatan tiga jalur. Plot-plot penelitian untuk burahol ditetapkan secara sengaja dengan metode purposive sampling, di mana pengukuran dilakukan pada tempat-tempat yang terdapat pohon burahol. Hasil penelitian menunjukkan bahwa habitat burahol di TNMB banyak dijumpai di pinggir aliran sungai dengan topografi agak curam. Di sekitar pohon burahol banyak dijumpai besule (Chydenanthus excelsus) dengan indeks nilai penting (INP) 67,9% dan sentul (Sandoricum koetjape) dengan INP 24,2%. Lingkungan fisik yang berkaitan erat dengan burahol adalah suhu yang berkisar antara 26-30&amp;deg;C, kelembaban udara 50- 85%, kemiringan lahan 10-50%, dan ketinggian tempat di atas permukaan laut 10-210 m. Jenis tanah di lokasi penelitian adalah Latosol dengan tekstur geluh lempungan dengan pH 5,5-6,5. Besule (C. excelsus) merupakan jenis tumbuhan yang mempunyai hubungan asosiasi kuat dengan burahol. Hal ini ditunjukkan oleh nilai indeks Ochiai, indeks Dice, dan indeks Jaccard mendekati satu. Regenerasi alami pohon burahol di TNMB dibantu oleh satwa liar, terutama kalong (Pteropus vampirus) dan aliran air hujan.</p>


2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Wakhid Wakhid ◽  
Roni Koneri ◽  
Trina Tallei ◽  
Pience V Maabuat

Abstrak Capung jarum (Zygoptera) berperan penting bagi keberlangsungan ekosistem.Pada suatu ekosistem, serangga ini berfungsi sebagai agen pengendali hayati dan bioindikator lingkungan.Penelitian ini bertujuan untuk menganalisis kelimpahan capung jarum yang ada pada tiga habitat di Kawasan Taman Nasional Bogani Nani Wartabone, Sulawesi Utara.Pengambilan sampel dilakukan secara purposive random sampling. Koleksi capung jarum  menggunakan teknik sweepingmengikuti garis transek sepanjang 500 m pada setiap tipe habitat. Jumlah transek pada setiap tipe habitat sebanyak 3 garis transek yang dibuat sepanjang aliran sungai.Hasil penelitian didapatkan sebanyak 13 spesies capung jarum yang terdiri dari 4 famili, yaitu Coenagrionidae, Chlorocypidae, Calopterygidae, dan Platycnemididae. Famili yang paling banyak ditemukan jumlah spesiesnya adalah Coenagrionidae, sedangkan yang paling sedikit Platycnemididae. Berdasarkan tipe habitat, jumlah spesies yang paling banyak ditemukan di hutan primer sedangkan yang paling sedikit di hutan sekunder.Kelimpahan capung jarum tertinggi terdapat pada lahan pertanian, sedangkan kelimpahan terendah pada habitat hutan primer Kata kunci : capung jarum, Taman Nasonal Bogani Nani Wartabone, Sulawesi Utara Abstract Damselfly (Zygoptera) plays important roles in the environment and this organism ia able to be used as biocontrol and bioindicator. This research was aimed to analyze the abundance of damselfly that werelocated at three different habitats in Bogani Nani Wartabone National Park, North Sulawesi. The purposive random sampling method was used to collect the samples. Damselflies were taken by using sweeping technique following 500 m transect line in each habitat. There were three transect lines in each habitat located along the river. The results showed that there were thirteen species from 4 families (Coenagrionidae, Chlorocypidae, Calopterygidae, and Platycnemididae) of damselfly. Most species were members of Coenagrionidae whereas the others werePlatycnemididae Family. Based on the types of habitat, the highest number of species was found in the primary forest, whereas the smallest number was in the secondary forest. Greatest the abundance of damselfly was the largest in the agricultural area and the smallest was in the primary forest. Keywords: damselfly, Bogani Nani Wartabone National Park, North Sulawesi


2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Sunita ◽  
Urvashi Singh ◽  
Shalini Singh ◽  
Rajnee Sharma

The present study was conducted to examine the relationship between organisational stress and organisational citizenship behaviours (OCBs) in employees of call centers. The study also further explored as how stress at work set-up has negative impact on OCBs. A sample of 250 employees working in call centre of Gurgaon belonging to an age group of 25-30 years were selected on availability basis. All were working married couples living in nuclear families. Job stress survey (Spielberger & Vagg, 1999) and Organisational Citizenship Behaviour (Bateman & Organ, 1983) were administered. Data was analysed by using simple correlation and multiple regression. Results showed the negative relationship between organisational stress and OCBs. Results of regression analysis also exhibited the negative impact of stress on OCBs. The implications for the employees are discussed.


Oryx ◽  
1955 ◽  
Vol 3 (2) ◽  
pp. 64-70
Author(s):  
G. N. Zimmerli

The idea of a Swiss national park originated with the Swiss Society for Nature Research and this Society played the leading part in its realization. In 1906 the Society set up as part of its own organization a Swiss Nature Protection Commission and charged it to search for an area in Switzerland suitable for establishment as a reserve, in which all the animal and plant life could be protected against interference by man and so could be left entirely to the play of natural forces. It was not easy to find in Switzerland a suitably large area which still retained its original characteristics, was virtually free from human settlement, and contained some wealth of fauna and flora. After a careful survey of the whole country it became clear that the most suitable region was the Lower Engadine, with its isolated valleys on the eastern border of the country. The district in which, at the beginning of the century, bears had still lived was the one in which primitive nature could be found in its truest state.


2021 ◽  
pp. 1-21
Author(s):  
Florentine Martino ◽  
Alexandra Chung ◽  
Jane Potter ◽  
Tara Heneghan ◽  
Melanie Chisholm ◽  
...  

Abstract Objective: To systematically audit the extent of unhealthy sponsorship within junior community sporting clubs and ascertain whether differences exist across geographical areas and sports types. Design: Club sponsorship data were assessed to determine the extent of unhealthy food/beverage, alcohol, and gambling sponsorship using a cross-sectional design. Differences across geographical areas were assessed using logistic regressions. Setting: A stratified random sampling procedure was used to select 30 communities across the state of Victoria, Australia. Within each community, local clubs across the top eight participating junior sports were selected for audit. Participants: Sponsorship data was collected from 191 club websites and Facebook pages in September-November 2019. Results: Unhealthy sponsorships represented 8.9% of all identified sponsorship arrangements. A quarter of all clubs accepted alcohol (25.6%) and unhealthy food sponsors (25.9%), and one-fifth of all clubs accepted high-risk food (unhealthy brands with large market share) (18.1%) and gambling sponsors (20.4%). Acceptance of unhealthy sponsorship differed across sport types with football, netball, cricket, and soccer clubs having the greatest number. Compared to metro areas, a significantly greater proportion of sporting clubs in regional areas were affiliated with unhealthy food (32.7% vs 19.6%) and high-risk food sponsors (26.9% vs 9.8%). A higher proportion of clubs in low SES, compared to high SES areas, were affiliated with alcohol (33.9 % vs 16.5%) and gambling sponsors (27.4% vs 12.6%). Conclusion: Victorian children participating in community junior sport are being exposed to marketing of unhealthy brands and products. Public health intervention is necessary to protect children from this exposure.


2021 ◽  
Vol 5 (2) ◽  
pp. 773
Author(s):  
Lia Ardiana Safitri

This study was conducted with the aim of knowing the significant role of WhatsApp in teaching vocabulary, especially staff learning achievement which was limited to vocabulary achievement as measured by a vocabulary test at Umbul Ponggok Klaten. Participants in this study amounted to 30 people consisting of 15 men and 15 women. All participants will learn English as a foreign language using WhatsApp to learn new vocabulary items via their mobile, tablet or laptop. Participants' English level will be measured. Random sampling procedure was carried out. To carry out the research, a true experimental design was used. The participants were assigned to two experimental and control groups. The assessment instrument in this study used a pre-test and post-test. The results showed that the use of the WhatsApp application in teaching vocabulary to the Umbul Ponggok Klaten staff was able to improve the achievement of new English vocabulary mastery of the Umbul Ponggok Klaten staff which was getting better.


Author(s):  
Quan Liu ◽  
Yimin Zhu ◽  
Tie Li ◽  
Xiaojia Tang ◽  
Weifeng Liu ◽  
...  

In magnesium-based seawater exhaust gas clean system, the desulfurization by-product, magnesium sulfite (MgSO3), has a negative impact on the ecological environment, which needs to be treated to make harmless. Due to the limited space on board, the aeration oxidation method is used to convert it to magnesium sulfate. Because of the variable size, shape and flow field of aeration tank, it is difficult and expensive to design and verify the oxidation efficiency of the aeration tank by experimental method. In this work, in order to predict the oxidation efficiency accurately, RFlow, a computational fluid dynamics software, was used to analyze the flow field and MgSO3 oxidation reaction in aeration tank. The subdomain technology was adopted for physics modeling and mesh generation of the aeration tank, and the total number of meshes was 285,000. The multi-phase flow field model was set up using the multi-fluid model and dispersive k-ε turbulence model. Under the given initial conditions, the predicted oxidation efficiency was 94.2%. Compared with the results of the actual ship test, the prediction model for MgSO3 oxidation efficiency of the aeration tank is reliable.


2017 ◽  
Vol 8 (2) ◽  
pp. 141-146
Author(s):  
Bambang Hero Saharjo ◽  
Guntala Wibisana

Forest fires cause losses and negative impact. Forest fire in mountain Ciremai national park caused by human factor. Efforts to control forest fires currently preferred by involving the community. This research is done using primary data and information obtained from filling the questionnaire. Research is taking samples from three villages namely Cibuntu village, Padabeunghar villages, and Kaduela village. Respondents were interviewed 90 respondents. Based on researches known that the area around the national park had high perception of Ciremai national existance. They argue that the mountain Ciremai national parks useful in life and the management of mountain Ciremai national parks better. Based on the scoring of 90 respondents 70 of them have a highperception of the forest fire control in mountain Ciremai national park, it means that most of people have participated in efforts to control forest fire.Key words: Forest fire,community role, forest fire control


2021 ◽  
Vol 2 (4) ◽  
pp. 428-435
Author(s):  
Lena Ria Bela ◽  
Asri Laksmi Riani ◽  
Mintasih Indriayu

Gender inequality is one of the keys to entrepreneurial activity in general and especially for entrepreneurial intentions in encouraging to set up new businesses. Entrepreneurial intention grows from the presence of entrepreneurial potential, so an entrepreneur needs to have an entrepreneurial intention in itself. It is interesting to study whether the entrepreneurial potential of men is stronger than women so that men have more intentions to set up their new businesses than women?. The study method used is hierarchical multiple regression analysis with a research population of 402 students and the sample to be used is 200 students. Proporsional stratified random sampling adalah jenis teknik sampling probabilitas yang digunakan dalam penelitian ini. Test the validity and reliability using the product-moment correlation formula from Pearson and the formula for calculating Cronbach alpha (α). The results of the analysis show Entrepreneurial potential significantly affects student intention, but gender does not significantly moderate the relationship.


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