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THE ENVIRONMENT-BASED LEARNING TO IMPROVE STUDENTS ACHIEVEMENT ON THE CONCEPTS OF SPERMATOPHYTE DIVERSITY Juairiah, Juairiah; Yunus, Yuswar; Yunus, Yuswar; Djufri, Djufri; Djufri, Djufri
Jurnal Biologi Edukasi Vol 6, No 2 (2014): Jurnal Biologi Edukasi
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The objective of the study is to evolve student achievement on the concept of spermatophyte diversity through environment-based learning. The study was conducted at MAN Rukoh Banda Aceh by implementing environment-based learning through Pre-test and Pos-test group. The population was students of class X year 2013/2014 consisting of 6 parallel classes. The sample was Class X-1 consisting of 28 students.  Data was analysed persentage and t-test. The results showed that there was significant improvement of students achievement (t-count t-table, or 2,499 2.051).  It can be concluded that there was significant increases in student achievement by implementing environment-based learning on the concept of spermatophyte diversity
THE ENVIRONMENT-BASED LEARNING TO IMPROVE STUDENTS ACHIEVEMENT ON THE CONCEPTS OF SPERMATOPHYTE DIVERSITY Juairiah, Juairiah; Yunus, Yuswar; Yunus, Yuswar; Djufri, Djufri; Djufri, Djufri
Jurnal Biologi Edukasi Vol 6, No 2 (2014): Jurnal Biologi Edukasi
Publisher : Jurnal Biologi Edukasi

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Abstract

The objective of the study is to evolve student achievement on the concept of spermatophyte diversity through environment-based learning. The study was conducted at MAN Rukoh Banda Aceh by implementing environment-based learning through Pre-test and Pos-test group. The population was students of class X year 2013/2014 consisting of 6 parallel classes. The sample was Class X-1 consisting of 28 students.  Data was analysed persentage and t-test. The results showed that there was significant improvement of students achievement (t-count t-table, or 2,499 2.051).  It can be concluded that there was significant increases in student achievement by implementing environment-based learning on the concept of spermatophyte diversity
Invasi Akasia Berduri (Acacia nilotica) (L.) Willd ex Del. Di Taman Nasional Baluran Jawa Timur dan Strategi Penanganannya Djufri, Djufri
Jurnal Mentari Vol 11, No 1 (2008)
Publisher : Universitas Muhammadiyah Aceh

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Acacia nilotica is a thorny wattle native species in India, Pakistan and much of Africa. This Acacia is widely distributed in tropical and subtropical Africa from Egypt and Mauritania to South Africa. The invasion of A. nilotica has resulted in the reduction of savannah wide in Baluran National Park reaching about 50%. Presure to the savannah has a great impact on the balance and preservation of whole ecosystem in Baluran. Some efforts have been to fight against the wide-spreading of invasion of A. nilotica for example eradication chemically use Indamin 72 HC and 2,4 D Dinitropenol, but result is not effective. And so it is with eradication in the mechanic use bulldozer appliance, and cut away to burn, not yet given optimal result, proven invasion of A. nilotica in this time not yet deductible, exactly growing wide. For the reason, require to be looked for alternative is way of the other eradication, so that the wide-spreading of preventable invasion A. nilotica. Otherwise hence the possibility of big savannah exist in National Park of Baluran metamorphose to become forest of A. nilotica.
ANALISIS KUALITAS VEGETASI SEPANJANG PANTAI BANDA ACEH PASCATSUNAMI (THE VEGETATION QUALITY ANALISYS IN BANDA ACEH BEACH AFTER TSUNAMI) Djufri, Djufri
Jurnal Mentari Vol 11, No 2 (2008)
Publisher : Universitas Muhammadiyah Aceh

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The objectivees of this research were; to acquered of vegetation in Banda Aceh beach after tsunami, and else the research to find expression about of camposition, association, species diversity index (H’), similarity index (IS), and species distribution pattern. The stap of research were; observation and segmentation of study area. The size of study area is 420 ha, and sampel area is 10% of population. The station of sampling is (a). Ujung Batee Beach (UBB), (b). Lhoknga Beach (LB), and Ule Lee Beach (ULB). For each of sampling location a given ten of sampling quadrat with five replicatiion until of total sample is 50 quadrat. The observated variable is total species, absolute diversity, absolute frequency, and absolute dominance. The calculated of infortance value used formula is DR + FR + DMR., and calculated of species diversity index with Shannon-Wiener formula. The category of species diversity index is; if H’<1 very low category, H’>1-2 low category, H’>2-3 median category, and H’>3-4 high category. The result of this research; (a). The vegetation physiognomy in Ule Lee Beach was fundamental changed after tsunami, (b). The vegetation physiognomy in Ujung Batee Beach no significans changed after tsunami, (c). The planting of mangrove species in Ujung Batee Beach not yet optimal results, (d). Dominance of tree in Ujung Batee Beach and Loknga Beach is Casuarina equisetifolia, and Cocos nucifera, and dominance of underbrush is Calatropis gigantea, (5). For the moment effort necessary of serious reclamation in Banda Aceh Beach after tsunami specific. Key words: kualitas vegetasi, spesies
INVASI AKASIA BERDURI (ACACIA NILOTICA) (L.) WILLD EX DEL. DI TAMAN NASIONAL BALURAN JAWA TIMUR DAN STRATEGI PENANGANANNYA Djufri, Djufri
Jurnal Mentari Vol 12, No 1 (2009)
Publisher : Universitas Muhammadiyah Aceh

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Acacia nilotica is a thorny wattle native species in India, Pakistan and much of Africa. This Acacia is widely distributed in tropical and subtropical Africa from Egypt and Mauritania to South Africa. The invasion of A. nilotica has resulted in the reduction of savannah wide in Baluran National Park reaching about 50%. Presure to the savannah has a great impact on the balance and preservation of whole ecosystem in Baluran. Some efforts have been to fight against the wide-spreading of invasion of A. nilotica for example eradication chemically use Indamin 72 HC and 2,4 D Dinitropenol, but result is not effective. And so it is with eradication in the mechanic use bulldozer appliance, and cut away to burn, not yet given optimal result, proven invasion of A. nilotica in this time not yet deductible, exactly growing wide. For the reason, require to be looked for alternative is way of the other eradication, so that the wide-spreading of preventable invasion A. nilotica. Otherwise hence the possibility of big savannah exist in National Park of Baluran metamorphose to become forest of A. nilotica. Kata kunci: invasi, akasia berduri, dan strategi penanganan.       DAFTAR  PUSTAKA Balai Taman Nasional Baluran. 1999. Rancangan Pencabutan Seedling/Anakan Hasil Pembongkaran secara Mekanis 150 ha di Savana Bekol. Banyuwangi: TNB. Reboisasi TNB. Bolton, M.P. and P.A. James. 1985. A. survey of prickly acacia (Acacia nilotica) in five Western Queensland shires. Stock Routes and Rural Lands Protection Board. Brisbane. Internal Report. Nopember 1985. Brenan, J.P.M. Manual on taxonomy of Acacia species, present taxonomy of four species of Acacia (A. albida, A. sinegal, A. nilotica, A. tortilis). Roma: FAO. Carter, J.O., P. Newman, P. Tindale, D. Cowan, and P.B. Hodge. 1990. Complementary grazing of sheep and goats on Acacia nilotica. In Proceedings 6 th Biennial Conference. Australian Rangelands Society. Carnovan, Western Australia, pp.271-272. Djufri, 2004. REVIEW: Acacia nilotica (L.) Willd ex Del. dan Permasalahannya di Taman Nasional Baluran Jawa Timur. Biodiversitas 4 (2):96-104. Duke. 1983. Medicinal plants of the Bible. New York: Trado-Medic Books, Owerri. Gupta, R.K. 1970. Resource survey of gummiferous acacia in Wstern Rajasthan. Tropical Ecology 11. 148-161. Mutaqin, I.Z. 2002. Keanekaragaman Hayati dan Pengendalian Jenis Asing Invasif. Dalam Upaya Penanggulangan Tanaman Eksotik Acacia nilotica di Kawasan Taman Nasional Baluran. Jakarta, Kantor Meneteri Negara Lingkungan Hidup. Primack, R.B., J. Supriatna, M. Indrawan, dan P. Kramadibrata. 1998. Biologi Konservasi. Jakarta: Yayasan Obor Indonesia. Reynolds, J.A. and J.O. Carter. 1990. Woody weeds in central western Quensland. In Proceedings 6 th Biennial Conference, Australian Rangelands Society. Camarvon, Western Australia pp. 304-306. Sabarno, M.Y. 2002. Savana Taman Nasional Baluran. Biodiversitas 3 (1): 207-212. Weaver, J.E. and E.C. Frederic. 1978. Plant Ecology. New Delhi: Tata McGraw-Hill Publishing Company, Ltd.  
ANALISIS VEGETASI PANTAI BARAT ACEH PASCA TSUNAMI Djufri, Djufri
Jurnal Biologi Edukasi Vol 2, No 3 (2010): Jurnal Biologi Edukasi
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The objectivees of this research were; to acquered of vegetation in Banda Aceh beach after tsunami, to find expression about of composition, association, species diversity index (H?), similarity index (IS), and species distribution pattern.The stage of research were; observation and segmentation of study area. The size of study area is 420 ha, and sample area is 10% of population. The station of sampling is (a). Meulaboh District Beach (MDB), (b). Aceh Jaya District Beach (AJDB), and Lhoknga District Beach (LDB). For each of sampling location a given ten sampling quadrat with five replication. total sample are 50 quadrats. The observated variable is number of  spec                ies, absolute diversity, absolute frequency, and absolute dominance. The calculated of importance value used formula is DR + FR + DMR., and calculated of species diversity index with Shannon-Wiener formula. The category of species diversity index is; if H? 1 very low category, H? 1-2 low category, H? 2-3 median category, and H? 3-4 high category.The result of this research are; (a). The vegetation physiognomy in Meulaboh District Beach, (b).Aceh Jaya District Beach, and Lhoknga District Beach were fundamental changed after tsunami, (c). The planting of mangrove species in Aceh West Beach didn?t resulted yet optimalization, (d). Dominance of tree in Aceh West Beach were Casuarina equisetifolia, and Cocos nucifera, dominance of underbrush were Calatropis gigantea, and Vernonia cinerea, and dominance of herbs species were Ipomoea pescaprae, and Chloris barbata (5). The moment effort is necessary for serious reclamation in Aceh West Beach after tsunami specific.
EKSPLORASI POTENSI AKASIA (ACACIA NILOTICA) (L.) WILLD EX DEL. SEBAGAI SPESIES BIOPROSPEKTIF DALAM RANGKA PEMANFAATAN SUMBER DAYA ALAM HAYATI SECARA LESTARI Djufri, Djufri
Jurnal Biologi Edukasi Vol 1, No 1 (2009): Jurnal Biologi Edukasi
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The objectives of this research are to study character of A. nilotica includes morphology description, anatomy, and ecology (life cycle, spreading and seed production in BNP, stand structure, soil condition, and association of species). Research method used to know cycle life, spreading and seed production in BNP and the done conducted stand structure with direct perception in field. Produce seed used a square method having a nest counted 10 squares by using plastic. Obtained stand structure data with model is Permanent Square for the width of 20 x 20 m of counted 15 squares and at each square measured by a diameter and high counted 10 trees. Analysis of association used contingency table, and Influence of salinity to soil used result of laboratory analysis. Conclusion from this research are (1). There are six step life cycle of A. nilotica that is seed corps, seedling, juvenile, adult, flower, and seed in pod, (3). Stand structure of A. nilotica in BNP pertained as straightened age, (4). There are three of species positive association to A. nilotica is bayapan (Brachiria reptans), rumput gunung (Oplismenus burmanii), dan rumput kawat (Dactyloctenium aegyptium), (5). The analysis of soil fertility parameter indicates that there symptom of effect treatment salinity concentration at test soil, (6). Treatment salinity concentration has an effect to organ damage A. nilotica, specially on root, bark, and leaf. So that at 14 HST of most crop test has died the effect unable to tolerate tried treatment. 
PENGARUH TEGAKAN AKASIA (ACACIA NILOTICA) (L.) WILLD. EX. DEL. TERHADAP KOMPOSISI DAN KEANEKARAGAMAN TUMBUHAN BAWAH DI SAVANA BALANAN TAMAN NASIONAL BALURAN JAWA TIMUR Djufri, Djufri
Jurnal Biologi Edukasi Vol 3, No 2 (2011): Jurnal Biologi Edukasi
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The research was done in Baluran National Park, Banyuwangi East Java in April to June 2004. The objectives of this research were: to determine of species composition, importance value of species, diversity index and evenness index, similarity index, distribution pattern of species, and species association. This research used the quadrat method. The determination of the species distribution was calculated using Poisson distribution formula and the determination of association was calculated using contingency table. The results of this research indicated that,  there were 20 species of  plant belong to 8 familiy. The importance value was between 0,42-59,54, and species with high importance value is Oplismenus burmanii, Axonopus compressus, and Synedrella nudiflora. The diversity index was between 1,3329-2,5271, and evenness index was between 1,5364-1,9848. The distribution pattern of species indicated that 12 species were  clumped, 6 species reguler, and 2 species were at random.  The multi-plants tend to have a clumped distribution pattern, and single plant tend to have a reguler or random distribution pattern. The of association indicated that 2 species assosiation which the highest index
ANALISIS VEGETASI PADA SAVANA TANPA TEGAKAN AKASIA (ACACIA NILOTICA) DI TAMAN NASIONAL BALURAN JAWA TIMUR Djufri, Djufri
Jurnal Biologi Edukasi Vol 4, No 2 (2012): Jurnal Biologi Edukasi
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The objectives of the research were: (1) to determine the distribution pattern, association, and interaction of plant species, and (2) to determine the relationship between life form and the distribution pattern of species. Quadrate method was used in this research. Determination of species distribution pattern was calculated using Poisson Distribution formula. The result indicated that: (1) The species richness were dominated by grasses, reaching 20,63% of the 33 observed species,  21 of them were in a clumped distribution, 7 species in a reguler, and 5 species were at random pattern. (2) There are relationship between life form and the distribution of the plant species. The multy-plants tend to have a clumped distribution pattern, and single plant tend to heve a reguler or random distribution pattern.
PENURUNAN KUALITAS SAVANA BEKOL SEBAGAI FEEDING GROUND BAGI RUSA (CERVUS TIMORENSIS) DAN BANTENG (BOS JAVANICUS) DI TAMAN NASIONAL BALURAN JAWA TIMUR Djufri, Djufri
Jurnal Biologi Edukasi Vol 1, No 2 (2009): Jurnal Biologi Edukasi
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This research aim to  know : (1). species of grass eaten by deer and species of grass predominating area of savannah Bekol. (2). Species eaten by bull, and (3). Factors causing downhill it  quality of savannah Bekol. Method used for inventories of species eaten by deer and bull is  method of transek combined with method  square. While to collect data of  factors causing downhill it  quality of savannah of Bekol with  direct perception  in  field and muster relevant information  from data sekunder. The conclusion  from  this research is (1). Found  12 species of grass eaten by deer, and 3 species among others as dominant species that is bayapan (Brachiaria reptans), red lamuran (Dichantium coricosum), and  tuton (Dactyloctenium aegyptium). (2). found  50  species as food of bull in savannah Bekol  from 60 of species of compiler savannah of this area. (3).  Factors influencing reduction of quality of  savannah in Bekol is : Invasion A. nilotia, bush groaning savannah, existence of tread  by animal, fire effect, and over grazing.