scholarly journals STRUKTUR DAN KOMPOSISI VEGETASI SEBAGAI DASAR RESTORASI DEGRADASI HUTAN DI KAWASAN PERLINDUNGAN BLOK SINTANG PT FINNANTARA INTIGA

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Edi Rustadi Setiadharma ◽  
Burhanuddin Burhanuddin ◽  
M Sofwan Anwari
Keyword(s):  
Forest Restoration ◽  
Forest Ecosystems ◽  
Similarity Index ◽  
Natural Forest ◽  
Survey Method ◽  
Community Similarity ◽  
Forest Stands ◽  
Horizontal Structure ◽  
Purposive Sampling ◽  
Open Land

This study aims to examine the composition and structure of the vegetation in the protected forest area of PT Finnantara Intiga's Sintang block and determine the pattern of forest restoration and the types of vegetation that will be used for restoration of degraded forests. This research was conducted at PT Finnantara Intiga Sintang Block which is located in five land cover areas, of which three are reference secondary swamp forest (KPPN, KPSL and river border) and two areas are degraded forest (shrub and open land). This study uses a survey method with a line plot system. The sample was determined by means of purposive sampling. Based on the results of research data analysis, the number of species found at all levels at the KPSL location was nine species, at the KPPN location there were eleven species, at the River Border location there were eight species, at the Semak Belukar location there were seven species and at the Open Land location there were four species. In general, the horizontal structure of forest stands in damaged forest ecosystems is below the horizontal structure of natural forest stands as a reference. This shows that the level of vegetation density at the location of shrubs and open land has decreased so that forest restoration measures are needed to increase the density closer to natural forest ecosystems that have not been damaged. The pattern of forest restoration for scrub areas and open land referring to the Guidelines for Restoration in Conservation Areas (JICA, 2014) is natural succession. The pattern of forest restoration that will be implemented must take into account the physical conditions of the field and local socio-cultural considerations based on stakeholder considerations. The type of vegetation for enrichment and planting activities at the shrub location refers to the KPSL location as a reference because it tends to have similarities with the community similarity index of 52.03%. The type of vegetation for enrichment and planting activities on open land locations refers to the KPPN location as a reference because it tends to have similarities with the community similarity index of 52.17%. Keywords:  Composition, forest degradation, restoration, structureAbstrakPenelitian ini bertujuan untuk mengkaji komposisi dan struktur vegetasi di kawasan hutan perlindungan blok Sintang PT Finnantara Intiga serta menentukan pola pemulihan hutan dan jenis vegetasi yang akan digunakan untuk restorasi hutan terdegradasi. Penelitian ini dilaksanakan di PT Finnantara Intiga Blok Sintang yang terletak di lima areal tutupan lahan, dimana tiga areal sebagai hutan rawa sekunder referensi (KPPN, KPSL dan sempadan sungai) dan dua areal di hutan yang terdegradasi (semak belukar dan lahan terbuka). Penelitian ini menggunakan metode survey dengan cara jalur berpetak. Sampel ditentukan dengan cara Purposive Sampling. Berdasarkan hasil analisis data penelitian, Jumlah jenis yang ditemui di semua tingkatan di lokasi KPSL ada sembilan jenis, dilokasi KPPN ada sebelas jenis, di lokasi Sempadan Sungai ada delapan jenis, di lokasi Semak Belukar ada tujuh jenis dan di lokasi Lahan Terbuka ada empat jenis. Secara umum bentuk grafik struktur horizontal tegakan hutan pada ekosistem hutan yang mengalami kerusakan berada di bawah grafik struktur horizontal tegakan hutan alam yang menjadi referensi. Hal ini menunjukkan bahwa tingkat kerapatan vegetasi pada lokasi semak belukar dan lahan terbuka mengalami penurunan sehingga diperlukan tindakan pemulihan hutan untuk meningkatkan kerapatan mendekati ekosistem hutan alam yang belum mengalami kerusakan. Pola pemulihan hutan untuk areal semak belukar dan lahan terbuka merujuk pada Pedoman Tata Cara Restorasi di Kawasan Konservasi (JICA, 2014) adalah suksesi alami. Pola pemulihan hutan yang akan dilaksanakan harus mempertimbangkan kondisi fisik lapangan dan sosial budaya setempat berdasarkan pertimbangan stakeholder. Jenis vegetasi untuk kegiatan pengkayaan dan penanaman pada lokasi semak belukar mengacu pada lokasi KPSL sebagai referensi karena kecenderungan memiliki kemiripan dengan dengan indeks kesamaan komunitas sebesar 52,03%. Jenis vegetasi untuk kegiatan pengkayaan dan penanaman pada lokasi lahan terbuka mengacu pada lokasi KPPN sebagai referensi karena kecenderungan memiliki kemiripan dengan dengan indeks kesamaan komunitas sebesar 52,17%.Kata kunci: Degradasi hutan, komposisi, restorasi, struktur

scholarly journals The Diversity of Amphibian from Order Anura in the Protected and Utilization Blocks of Integrated Educational Conservation Forest, Wan Abdul Rachman Great Forest Park

2019 ◽  
Vol 7 (3) ◽  
pp. 370
Author(s):  
Kornelius Siahaan ◽  
Bainah Sari Dewi ◽  
Arief Darmawan
Keyword(s):  
Diversity Index ◽  
Similarity Index ◽  
Public Understanding ◽  
Survey Method ◽  
Line Transect ◽  
Community Similarity ◽  
Species Diversity Index ◽  
Forest Park ◽  
River Habitat ◽  
Protection And Utilization

Amphibians are part of biodiversity that spread in various places in the world. Amphibians have an important role in maintaining the balance of the ecosystem as part of the food chain system. However, lack of public understanding caused the potential of Anura amphibians to have not been explored optimally hence research on Anura amphibians in the Wan Abdul Rachman Great Forest Park (Tahura WAR) is very important to support Anura's conservation efforts. This study aims to understand and identify the diversity of Anura order amphibians in the Protection and Utilization Blocks of the Tahura WAR on forest and river habitat types. Data was collected by using Line Transect and Visual Encounter Survey method. Data collection using Line Transect was conducted by making a narrow transverse path at the observation site, while the Visual Encounter Survey was conducted by making a wildlife observation path with 3 replications. Analysis of the data used included amphibian diversity, community similarity index, and species evenness. The results found 25 individuals of Anura amphibians in the Protection Block and 40 individuals in the Utilization Block of Tahura WAR. Overall, 65 individuals were found consisting of 3 species of amphibians from 2 families i. e., 2 species of the Ranidae family and 1 species of the Bufonidae family. The results showed that the species diversity index, species richness index, and community similarity index in the Protection and Utilization Blocks of Tahura WAR were categorized as low. Reforestation needs to be done so that the Anura habitat is maintained.Keywords: amphibian, biodiversity, order Anura, Tahura WAR

scholarly journals Composition of psocid taxocenoses (Insecta: Psocoptera) in dependence on the level of naturalness of forest ecosystems in the Žďárské vrchy hills

2012 ◽  
Vol 49 (No. 5) ◽  
pp. 208-219 ◽  
Author(s):  
P. Mückstein ◽  
O. Holuša
Keyword(s):  
Picea Abies ◽  
Fagus Sylvatica ◽  
Cultural Landscape ◽  
Forest Ecosystems ◽  
Abies Alba ◽  
Natural Forest ◽  
Acer Pseudoplatanus ◽  
Forest Stands ◽  
Different Types ◽  
Grazing Lands

In 1999–2000 in the Protected Landscape Area (PLA) Žďárské vrchy hills the occurrence of psocids (Psocoptera) was studied in different types of biotopes: natural forest ecosystems (stands of Fagus sylvatica with individual admixture of Abies alba, Acer pseudoplatanus, Picea abies), changed forest ecosystems (monoculture of Picea abies), young plantations in forest stands, disperse forest vegetation (solitary trees), and also non-forest ecosystems – agrocenoses, meadows and grazing lands. A total of 10,560 adults in 20 species were found. Three groups of biotopes with specific psocid taxocenosis were found out by computed cluster analysis – l. natural forest stands with dominance of Fagus sylvatica, 2. disperse tree vegetation and solitary trees in cultural landscape, and 3. forest stands remote to nature (monoculture of Picea abies). Occurrence of psocids was observed from the beginning of May to mid- November. Maximum of abundance was found in September.

scholarly journals Taxocenoses of psocids (Insecta: Psocoptera) in the forest ecosystems of Babia hora Mt. and Pilsko Mt. in the Oravské Beskydy Mts. (Slovakia)

2012 ◽  
Vol 60 (6) ◽  
pp. 117-128 ◽  
Author(s):  
Otakar Holuša
Keyword(s):  
Cluster Analysis ◽  
Forest Ecosystems ◽  
Natural Forest ◽  
Western Carpathians ◽  
Forest Stands ◽  
Vegetation Zones ◽  
Species Combination ◽  
Characteristic Species ◽  
Natural Reserves

In the Oravské Beskydy Mts. in the National Natural Reserves of Babia hora Mt. and Pilsko Mt. (northern Slovakia) are natural forest and near-natural forest stands in 8th (Piceeta s. lat. =Spruce) and in 9th (Pineta mugo s. lat. = dwarf pine) vegetation tiers (= altitudinal vegetation zones) (vegetation tiers according Plíva 1971, 1991, Holuša and Holuša 2008, 2010, 2011). During 1999–2000, psocids (Psocoptera) were studied from 6th to 9th vegetation tiers. In total, 1,113 adults and 42 larvae in 17 species were found. In 6th VT, 11 species were found (the following species were eudominant: Caecilius burmeisteri, Philotarsus picicornis and Caecilius flavidus), in 7th VT only 4 species (eudominant Philotarsus picicornis, Caecilius despaxi and Philotarsus picicornis), in 8th VT 10 species (eudominant Stenopsocus lachlani, Caecilius despaxi and C. burmeisteri) and in 9th VT 10 species (eudominant Caecilius burmeisteri, Lachesilla pedicularia and Stenopsocus lachlani). Taxocenoses of psocids in the Oravské Beskydy Mts. were evaluated by Detrend Corespondence analysis (DCA) and Divisive Cluster analysis (DvClA). Material was compared with other material from various vegetation tiers in the Western Carpathians Mts. Characteristic species combination of psocids of 9th VT was designated as follows: Lachesilla pedicularia – Caecilius despaxi – Stenopsocus lachlani.

scholarly journals A Survey in Natural Forest Ecosystems of Vietnam Reveals High Diversity of both New and Described Phytophthora Taxa including P. ramorum

Forests ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 93 ◽  
Author(s):  
Thomas Jung ◽  
Bruno Scanu ◽  
Clive Brasier ◽  
Joan Webber ◽  
Ivan Milenković ◽  
...  
Keyword(s):  
Forest Ecosystems ◽  
Woody Plant ◽  
Phytophthora Species ◽  
Soil Samples ◽  
Natural Forest ◽  
Forest Stands ◽  
Disease Symptoms ◽  
Center Of Origin ◽  
Tropical Lowland ◽  
Fallen Leaves

In 2016 and 2017, surveys of Phytophthora diversity were performed in 25 natural and semi-natural forest stands and 16 rivers in temperate and subtropical montane and tropical lowland regions of Vietnam. Using baiting assays from soil samples and rivers and direct isolations from naturally fallen leaves, 13 described species, five informally designated taxa and 21 previously unknown taxa of Phytophthora were isolated from 58 of the 91 soil samples (63.7%) taken from the rhizosphere of 52 of the 64 woody plant species sampled (81.3%) in 20 forest stands (83.7%), and from all rivers: P. capensis, P. citricola VII, VIII, IX, X and XI, P. sp. botryosa-like 2, P. sp. meadii-like 1 and 2, P. sp. tropicalis-like 2 and P. sp. multivesiculata-like 1 from Phytophthora major phylogenetic Clade 2; P. castaneae and P. heveae from Clade 5; P. chlamydospora, P. gregata, P. sp. bitahaiensis-like and P. sp. sylvatica-like 1, 2 and 3 from Clade 6; P. cinnamomi (Pc), P. parvispora, P. attenuata, P. sp. attenuata-like 1, 2 and 3 and P. ×heterohybrida from Clade 7; P. drechsleri, P. pseudocryptogea, P. ramorum (Pr) and P. sp. kelmania from Clade 8, P. macrochlamydospora, P. sp. ×insolita-like, P. sp. ×kunnunara-like, P. sp. ×virginiana-like s.l. and three new taxa, P. sp. quininea-like, P. sp. ×Grenada 3-like and P. sp. ×Peru 4-like, from Clade 9; and P. sp. gallica-like 1 and 2 from Clade 10. The A1 and A2 mating types of both Pc and Pr co-occurred. The A2 mating type of Pc was associated with severe dieback of montane forests in northern Vietnam. Most other Phytophthora species, including Pr, were not associated with obvious disease symptoms. It is concluded that (1) Vietnam is within the center of origin of most Phytophthora taxa found including Pc and Pr, and (2) Phytophthora clades 2, 5, 6, 7, 8, 9, and 10 are native to Indochina.

scholarly journals INVENTARISASI JENIS DAN STRUKTUR EKOLOGI ZOOPLANKTON DI SUNGAI MUSI BAGIAN HILIR, SUMATERA SELATAN

2017 ◽  
Vol 14 (3) ◽  
pp. 263
Author(s):  
Eko Prianto ◽  
Husnah Husnah ◽  
Siti Nurul Aida
Keyword(s):  
Sampling Method ◽  
Field Survey ◽  
Diversity Index ◽  
Similarity Index ◽  
Survey Method ◽  
Zooplankton Species ◽  
Dominance Index ◽  
Purposive Sampling ◽  
The Difference ◽  
Set Up

Penelitian yang bertujuan untuk mengetahui struktur komunitas zooplankton di Sungai Musi bagian hilir telah dilakukan pada bulan Mei, September, dan Januari 2007. Penelitian dilaksanakan dengan menggunakan metode survei pada 9 lokasi. Pemilihan lokasi pengambilan contoh dengan menggunakan purposive sampling didasarkan pada mikrohabitat. Contoh zooplankton diambil dengan menggunakan ember 10 l dan total volume yang disaring dengan plankton net 150 l. Parameter yang diukur meliputi kelimpahan, komposisi jenis, keragaman, keseragaman, dan indeks dominasi zooplankton. Hasil analisis jumlah spesies zooplankton yang tertinggi dijumpai pada bulan September dan terendah pada bulan Mei. Indeks keragaman dan kelimpahan zooplankton pada Mei 2006 dan Januari 2007 berkisar antara 0 sampai dengan 2,2 dan 0,8 sampai dengan 21x103 ind.m-3. Indeks keseragaman bervariasi. Nilai yang tertinggi diperoleh pada bulan Januari (0,8 sampai dengan 1), sedangkan bulan Mei dan September 2006. Pada September dan Mei lebih bervariasi dengan kisaran nilai masing-masing 0,6 sampai dengan 1 dan 0,6 sampai dengan 0,9. Selanjutnya untuk dominasi jenis, terdapat 2 stasiun yaitu Sebokor (bulan Mei) dan Selat Cemara (bulan September), yang didominasi 1 jenis zooplankton. Research with aiming to know the community structure of zooplankton at the down stream of Musi Rivers was conducted in May and September 2006, and January 2007. The work was done with field survey method at nine sampling sites, that were set up by using purposive sampling method based on the difference an microhabitat. Samples for zooplankton were collected by using 10 l bucket to sample a total of 150 l of water, and the total volume of wals filtered by using plankton net. Parameters measured include the abundance, spesies composition, diversity, similarity, and dominance index of zooplankton. Results show that the highest number of zooplankton species was found in September while the lowest one was recorded in May. The diversity index and abundance zooplankton in May 2006 and January 2007 were between 0 until 2.2, and 0.8 until 21x103 ind.m-3, respectively. The similarity index varied. The highest value was recorded in january (0.8 until 1) while in may and september 2006 were 0.6 until 1 and 0.6 until 0.9, respectively. Zooplankton was dominanted sebokor and cemara sampling sites.

scholarly journals Allometric equations for estimating tree biomass in restored mixed-species Atlantic Forest stands

2014 ◽  
Vol 14 (2) ◽  
Author(s):  
Lauro Rodrigues Nogueira Júnior ◽  
Vera Lex Engel ◽  
John A. Parrotta ◽  
Antonio Carlos Galvão de Melo ◽  
Danilo Scorzoni Ré
Keyword(s):  
Atlantic Forest ◽  
Forest Restoration ◽  
Global Climate ◽  
Allometric Equations ◽  
Predictor Variables ◽  
Forest Stands ◽  
Tree Biomass ◽  
Biomass Equation ◽  
South Central ◽  
Biomass Equations

Restoration of Atlantic Forests is receiving increasing attention because of its role in both biodiversity conservation and carbon sequestration for global climate change mitigation. This study was carried out in an Atlantic Forest restoration project in the south-central region of São Paulo State - Brazil to develop allometric equations to estimate tree biomass of indigenous tree species in mixed plantations. Above and below-ground biomass (AGB and BGB, respectively), stem diameter (DBH: diameter at 1.3 m height), tree height (H: total height) and specific wood density (WD) were measured for 60 trees of 19 species. Different biomass equations (linear and nonlinear-transformed) were adjusted to estimate AGB and BGB as a function of DBH, H and WD. For estimating AGB and BGB, the linear biomass equation models were the least accurate. The transformed nonlinear biomass equation that used log DBH2, log H and log WD as predictor variables were the most accurate for AGB and the transformed nonlinear biomass equations that used log DBH2*WD as predictor variables were the most accurate for BGB. It is concluded that these adjusted equations can be used to estimate the AGB and BGB in areas of the studied project. The adjusted equations can be recommended for use elsewhere in the region for forest stands of similar age, tree size ranges, species composition and site characteristics.

scholarly journals ANALISIS KEBERADAAN PAKAN ORANGUTAN DAN INDEKS SHANNON-WIENER PADA AREA REBOISASI ASRI DI KAWASAN TAMAN NASIONAL GUNUNG PALUNG

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Nurul Ihsan Fauzi ◽  
Erina Safitri ◽  
Juliansyah Juliansyah ◽  
Farah Diba
Keyword(s):  
Data Collection ◽  
Forest Restoration ◽  
National Park ◽  
Forest Ecosystems ◽  
Stable Condition ◽  
Wiener Index ◽  
The Past ◽  
Restoration Site ◽  
A Value ◽  
Primary Forests

Gunung Palung National Park had lost 35% of its primary forests over the past 30 years. A forest restoration program is thus vital to restore the damaged forest ecosystems. This study aims to analyze the presence of orangutan food supply and Shannon-Wiener index at Alam Sehat Lestari (ASRI) restoration site in Gunung Palung National Park. The method applies a species data collection of orangutan food (in 91 sample plots) and calculation of Shannon-Wiener index (in six 2009's plots). The result depicted approximately 65 species from 25 families found in ASRI restoration site. Eighty percent of those species indicated orangutan food.  In addition, the restoration site is believed to prevent the orangutan conflict with a human due to food availability in restoration areas for orangutans. Analysis of the Shannon-Wiener index (H') demonstrated a value of H' = 2.789, which indicated that the reforestation forest was in stable condition. The effect of increasing biodiversity as characterized by orangutan nests at restoration sites escalates the presence of wildlife.Keywords: Forest Restoration, Gunung Palung National Park, OrangutanTaman Nasional (TN) Gunung Palung telah kehilangan 35% hutan primer selama 30 tahun terakhir. Program reboisasi diperlukan untuk mengembalikan ekosistem hutan yang telah rusak. Tujuan penelitian ini adalah untuk menganalisis keberadaan pakan orangutan dan indeks Shannon-Wiener di area reboisasi yang dilakukan oleh Yayasan Alam Sehat Lestari (ASRI) di kawasan TN Gunung Palung. Metode yang digunakan adalah monitoring terhadap 91 plot untuk identifikasi pakan orangutan dan 6 plot penanaman tahun 2009 untuk perhitungan indeks Shanon-Wiener. Hasilnya terdapat 65 spesies dari 25 suku yang ditemukan di lokasi reboisasi ASRI. Sebanyak 85% dari spesies tersebut adalah pakan orangutan. Selain itu, keberadaan area reboisasi membantu mencegah konflik ini karena orangutan dapat mencari makanan di area reboisasi. Analisis indeks Shannon-Wiener (H’) didapatkan nilai H’ = 2,789, yang menunjukkan hutan hasil reboisasi berada dalam kondisi menengah atau stabil. Efek peningkatan biodiversitas ditandai dengan sarang-sarang orangutan ditemukan di lokasi reboisasi dan keberadaan satwa liar telah meningkat. Kata kunci: Gunung Palung, Orangutan, Restorasi hutan

scholarly journals Identification of Pathogenic Bacteria in Cyprinus carpio Reared in Floating Cages

2021 ◽  
Vol 26 (1) ◽  
pp. 26
Author(s):  
Erikson Sahala Pardamean ◽  
Henni Syawal ◽  
Morina Riauwaty
Keyword(s):  
Water Quality ◽  
Cyprinus Carpio ◽  
Pathogenic Bacteria ◽  
Survey Method ◽  
Fish Parasite ◽  
Pseudomonas Sp ◽  
Fish Sample ◽  
Purposive Sampling ◽  
Fish Samples ◽  
Cultured Fish

Pathogenic bacteria is disease causing microorganisms that can attack fish and can cause mass death in cultured fish. The purpose of this study was to identify the types of pathogenic bacteria Cyprinus carpio that were reared in floating cages. This study used a survey method that is purposive sampling and the fish sample were obtained from, PLTA Koto Panjang. the fishes were identified in the Fish Parasite and Disease Laboratory, Fish and Marine Faculty, University of Riau. Fish samples used were 15-20 cm goldfish totaling 12 tails with 3 times taken from 4 different cages. The kidneys organ were examined and to find out the type the bacteria. Result shown identified of pathogenic bacteria consist of 3 types of bacteria namely Aeromonas sp., Pseudomonas sp., and Edwardsiella sp. Water quality during the study was Temperature: 27-300C, pH 6-7, DO 3.67-4.28 ppm, and ammonia 0.048-0.64 mg/L.

scholarly journals Population survey of Milicia excelsa, Pouteria adolfi-fridercii, Antiaris toxicaria and Prunus africana in south and south-western Ethiopia: implications for domesticating and establishing Seed Production Areas

2020 ◽  
Vol 5 (4) ◽  
pp. 153-162
Author(s):  
Mohammed Adefa Seid ◽  
Yigardu Mulatu ◽  
Agena Anjulo ◽  
Semaigzer Ayalew ◽  
Hailu Belay ◽  
...  
Keyword(s):  
Seed Production ◽  
Forest Ecosystems ◽  
Natural Forest ◽  
Target Species ◽  
Stem Height ◽  
Prunus Africana ◽  
Milicia Excelsa ◽  
Western Ethiopia ◽  
Tree Stem

The population dynamics and genetic qualities of stem height and dbh of the populations of Milicia excelsa, Pouteria adolfi-fridercii, Antiaris toxicaria and Prunus africana were assessed and studied in 14 forest ecosystems in south and south-western Ethiopia. A systematic random quadrat sampling technique was employed to identify potential habitat area for selected timber species in south and south-western Ethiopia. So, a total of 10 parallel transect lines were set out across each forest habitat. Milicia excelsa was assessed in four forest ecosystems; Bebeka -Duduka natural forest (45 tree stem ha-1) and Yayu coffee mixed forest (40 tree stem ha-1) appeared to have relatively denser population of M. excelsa compared to the other pilot forests. Similarly, statistically larger stem height (m) is observed in Bebeka-Duduka natural forest (x̅=29.5, SD=4.2) and larger dbh size (cm) in Bebeka 1 coffee mixed forest (x̅=48.5, SD=25.2) at p<0.05. Hence, Bebeka-Duduka natural forest and Bebeka 1 coffee mixed forests are identified for in-situ SPA establishment project of the target species. Pouteria adolfi-fridercii was assessed in eight forest ecosystems; Masha-Gora shewi forest appeared to have dense population of P. adolfi-fridercii (150 tree stem ha-1) followed by Bebeka-Kebereta (80 tree stem ha-1) as compared to the remaining pilot forests. However, statistically larger stem height (m) is scored in Bebeka 2 natural forest (x̅=30.6, SD=2.98) and Bebeka-kebereta forest (x̅=30.0, SD=4.4) and larger dbh size (cm) in Bebeka 2 natural forest (x̅=96.5, SD=19.9) at p<0.05. So, Bebeka 2 natural forest and Bebeka-kebereta forest are identified for SPA establishment project of the target species. Antiaris toxicaria was assessed in two forest ecosystems where both forest habitats appeared to have the same density of Antiaris toxicaria in hectare. Moreover, analyses of mean stem height (cm) of Bebeka 1 forest (x̅=21.4, SD=5.2) and Bebeka-kebereta forest (x̅=22.4, SD=2.7), and mean dbh size (cm) of Bebeka 1 forest (x̅=48, SD=16.4) and Bebeka-kebereta forest (x̅=48, SD=8.2) appeared to have not significantly different at p<0.05. Prunus africana was assessed in five forest ecosystems; Masha-Gora shewi forest appeared to have dense population of Prunus africana (150 tree stem ha-1) followed by Kaho-shemeta forest (130 tree stem ha-1) as compared to the remaining pilot forests. However, statistically larger stem height (m) is scored in Kaho-shemeta natural forest (x̅=31, SD=7.6) and larger dbh (cm) in Masha-Gora shewi forest (x̅=64.7, SD=28.2) at p<0.05. As the result, Kaho-shemeta natural forest and Bonga-Teja-adela forest are identified for establishment of seed production area of the target species in-situ. Hence, while implementing the project of domestication and seed production area establishment in south and south-western Ethiopia, in-situ and ex-situ areas must be selected and delineated in accordance with this preliminary information of the population dynamics and genetic qualities of stem height and diameter at breast height. The survey data generated in this study would bridge the research gap in relation to the population status of the target tree species in the designated area.

scholarly journals POTENSI VEGETASI MANGROVE SEBAGAI PAKAN LEBAH MADU DI KAWASAN HUTAN MANGROVE SURYA PERDANA MANDIRI KELURAHAN SETAPUK BESAR SINGKAWANG UTARA

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Sapto Prayoga ◽  
Burhanuddin Burhanuddin ◽  
Evy Wardenaar
Keyword(s):  
Honey Bee ◽  
Mangrove Forest ◽  
Research Method ◽  
Forest Area ◽  
Tree Level ◽  
Survey Method ◽  
Purposive Sampling ◽  
Mangrove Plants

Mangrove Forest has a role for the life of fauna as a source of feed and shelter for honeybees. Honeybees need feed to maintain their survival in nature, so that the availability of the feed generated by flowers in the form of nectar and pollen gives the ability of bees to breed with maximum. This research aims to obtain the type of mangrove plants and pollen, and its potential in Surya Perdana Mandiri Mangrove Forest area. The research method used is a survey method with the example tile determination Purposive Sampling. There are 10 sample compartments of 20 x 20 meters in 2 research lines. Based on the results of the research is known that there are 22 types of mangrove plants, based on observations, 13 of which are the source of honey bee feed, and based on the study of literatures there are 18 The potential feed bees at the highest tree level on the Api-api putih (Avicemia Marina) with an INP value of 82.17% and the smallest value Ceriop decandra 17.50% while at the highest INP stake level of Rhizopora stylosa 76.08% with flowering 83.44% while the smallest INP Ceriop decandra 22.63% with flowering 36.36%. In the area of Mangrove Forest Setapuk Large types of honey bee feed plant available throughout the year, although in quantity varies from month to monthKeywords: bee feed, mangrove, potential, Setapuk Besar

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