scholarly journals Community study of dragon’s blood palm (Daemonorops spp.) in Harapan Rainforest, Sumatra

2019 ◽  
Vol 20 (12) ◽  
Author(s):  
Revis Asra ◽  
JOKO RIDHO WITONO ◽  
IZUANDRY FIJRIDIYANTO ◽  
ELVA ◽  
STEFAN SCHEU

Abstract. Asra R, Witono JR, Fijridiyanto I, Elva, Scheu S. 2019. Community study of dragon’s blood palm (Daemonorops spp.) in Harapan Rainforest, Sumatra. Biodiversitas 20: 3632-3640. Dragon's blood palms are rattan species that produce red-colored exudate on its fruit skin, popularly called exudates 'dragon's blood'. It has a high economic value and plays an important role as an income source for indigenous tribes in Jambi, such as in Bukit Duabelas National Park who live Anak Dalam Tribe and Semerantihan Village live Talang Mamak Tribe. However, overexploitation and unsustainable harvesting method have caused its decline in its population in natural forest. This study aims to make an inventory and map distribution of Dragon's blood palms in Harapan Rainforest, at the boundary between Jambi and South Sumatra Provinces, Indonesia; to determine its sex ratio and identify environmental factors that influence sex of Dragon's blood palms. This research used purposive random sampling method at three areas in Harapan Rainforest, i.e.: Hamparan Bato, Hamparan Batang Kapas, and Hamparan between Block A and B. The results showed that three species of Daemonorops were found in Harapan Rainforest, namely Daemonorops didymophylla, D. draco, and D. longipes. D. longipes has the highest population (18 clumps). The highest number of clumps were found in Hamparan Bato (17 clumps)and Hamparan Batang Kapas (17 clumps) areas. The ratio of male and female plants of D. longipes is 1: 1.84, D. draco is 1: 2 and D. didymophylla is 2.2: 1. Most clumps of Daemonorops species in Harapan Rainforest grow on the river banks which have low organic matters. Soil chemical variables that most contribute to the growth of Daemonorops spp. in Harapan Forest are N, C and pH.  

2017 ◽  
Vol 2 (1) ◽  
pp. 13
Author(s):  
Rogayah Rogayah ◽  
Wiwin Alawiyah ◽  
Arfandi .

AbstractTanjung Jabung Timur Regency has a predicate as the 4th planting area of corn commodities in Jambi Province. This provides an opportunity for farmers to focus their production in accordance with consumer demand and the business makes as a source of farmer income. Corn commodity development In Rantau Makmur Village, Berbak District has high economic value. The objective of this research is to know the description of farming activities, the use of input and production cost and the amount of income farming. The number of samples that taken in this study (30 farmers) applies simple random sampling methode.  The results of this research note that the input productions used in this farming consisted of seeds, labors, fertilizer, pesticide/insecticide  and several farm equipments. The used by the  variety of bisi 2 were bought from an agriculture shop. male and female laborers come from inside and outside of their family. Fertilizer, pesticide/insecticide and equipment efforts by the farmer itself. It can be concluded that the amount of income of corn farming  gives an average of Rp. 4.682.301,37/Ha/periode, or it is equivalent with Rp. 1.560.767,12/month of each family member. So it can be concluded that corn farming in Rantau Makmur Village, Berbak District Tanjung Jabung Timur Regency is still small lower than the region income standart of Rp. 2.020.000.Keyword : Income, Farming, Corn.AbstrakKabupaten Tanjung Jabung Timur pengembangan komoditas jagung terluas peringkat ke 4 dalam Propinsi Jambi. Hal ini memberi peluang bagi petani jagung untuk memfokuskan produksinya pada jagung. Di Desa Rantau Makmur Kecamatan Berbak pengembangan komoditas jagung memiliki nilai ekonomis yang cukup tinggi. Penelitian ini dilakukan untuk melihat bagaimana gambaran tentang usahatani jagung, bagaimana penggunaan input dan biaya produksi, seberapa besar pendapatan usahataninya. Jumlah sampel yang diambil dalam penelitian ini adalah sebanyak 30 rumah tangga petani (RTP) secara acak sederhana (simple random sampling). Dari hasil penelitian diketahui bahwa input produksi yang digunakan terdiri dari bibit varietas bisi 2, tenaga kerja, pupuk, obat-obatan dan peralatan usahatani. Besarnya pendapatan usahatani adalah Rp. 4.682.301,37/Ha/MT, kalau dihitung perkapita dengan rata–rata jumlah anggota keluarga petani 3 orang maka besar pendapatan sebesar Rp. 1.560.767,12/Bln. Jadi dapat disimpulkan bahwa usahatani jagung di Desa Rantau Makmur Kecamatan Berbak Kabupaten Tanjung Jabung Timur masih kecil dari UMR sebesar Rp. 2.02.000 terhadap pendapatan keluarga petani.Kata Kunci : Pendapatan, Usahatani, Jagung


2019 ◽  
Vol 8 (3) ◽  
Author(s):  
Sumi Hadi ◽  
Rafdinal Rafdinal ◽  
Riza Linda

Ficus is key species that commonly lives in tropical region because of its ability to bear fruit year around, thus so many kind of Ficus that become source of food and habitat to animals. The aim of the research to determine the density and distribution pattern of Ficus spp. at Research Station of Gunung Palung National Park in May until June 2018. The observation of Ficus spp. is done by random sampling method on five different locations, there are lowland granite, warmth, sands stone, freshwater swamp and alluvial land. The result showed that there are 4 species of Ficus with density ranges 16-60 individuals/ha and the distributions patterns are uniform and grouped.


2021 ◽  
Vol 2 (2) ◽  
pp. 54-61
Author(s):  
Manisha Giri ◽  
Ganesh Rawat ◽  
Anup Sharma

The survey research entitled “Constraints faced by Kiwi fruit farmers in Ilam Municipality and Sandakpur Rural Municipality of Ilam District” was conducted to access the problem faced by kiwi fruit farmers of Ilam district. For the study, 80 households were selected using simple random sampling method. 40 households each from Ilam Municipality and Sandakpur Rural Municipality were selected. The study shows that the production is in slightly increasing rate in both Ilam Municipality and Sandakpur Rural Municipality. In both Sandakpur and Ilam areas, 25 and 20 percent farmers are producing seedlings in their own nursery respectively and rest of seedlings requirement is met from other nursery. The major problem was wild animal Kala at Ilam and Sandakpur. Unavailability of quality saplings, lack of male and female plant management in field, lack of modified storage and lack of refrigerator van were major constraints of Ilam Municipality. Lack of cemented support system, lack of training and pruning knowledge, lack of modified storage and poor connectivity of road were major constraints of Sandakpur Rural Municipality. Overall constraints of Ilam was technical factors whereas of Sandakpur was disease and pest constraints. Despite of all these constraints, the B:C ratio was 2.67 and 2.53 in Ilam and Sandakpur respectively, which means that the kiwi cultivation is profitable.


2021 ◽  
Vol 232 ◽  
pp. 02004
Author(s):  
Forita Dyah Arianti ◽  
Endah Nurwahyuni ◽  
Sri Minarsih ◽  
Aldicky Faizal Amri

Peanuts are regarded as the second most important commodity after soybeans which have quite high economic value. Its production tends to decrease every year due to the reduction in planting areas. Meanwhile, the rainfed paddy fields land in Central Java is quite potential, thus its utilization can be used as an alternative to developing peanut. Accordingly, this study aims to find out the level of income and feasibility of peanut farming in Tegalsari Barat, Ampelgading Subdistrict, Pemalang District, Indonesia. The sampling was performed using purposive random sampling method with a total of 22 people. The level of profit could be found by using the return cost ratio (R/C ratio). The results indicated that during one planting season, the average cost was IDR 12,647,000 ha-1. The average production of peanut was 4,600 kg ha-1 wet pods with a selling price at farm level of IDR 8,500, so the average revenue was IDR 39,100,000 ha-1. The analysis of R/C feasibility showing the value of 3.09 (R/C > 1) indicates that peanut farming in the 3rd Planting Season (PS-3) in Pemalang District is feasible to be cultivated.


2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Prof. Jayesh N. Bhalala

The goal of the present study was to note the effect of the gender (Male/ Female) and residential area (Rural/ Urban) on the suicide tendency of students. In view to above purpose the sample of 120 was selected by random sampling method. Suicide tendency Inventory standardized by Dr. G. R. Meghnathi (2002) Among the Students of Rajkot city and from its rural areas, was referred to have data regarding their suicide tendency and all the tow individual factors, obtained information was statistically analyzed by‘t’-test effects were discovered. According to the results show that there is significant difference existed between male and female students, ‘t’-value 1.96 has been found significant at 0.05 level. So we concluded that female students showed higher level of suicide tendency then male students. Showed significant effect of area on suicide tendency. The‘t’-value 3.39 has been found significant at 0.01 level. So we concluded that urban students showed higher level of suicide tendency then rural students.


2007 ◽  
Vol 19 (3) ◽  
Author(s):  
Rita Dewi Handayani ◽  
Rachman Ardan ◽  
Rasmi Rikmasari

The purpose of this research was to acquire the value index of clinical crown lower jaw canine male and female, and to prove whether the index of male's canine is bigger than female's. The samples of the research was the students of Faculty of Dentistry Universitas Padjadjaran class of 1998 until 2001 by using proportional random sampling method according to the criteria and also adjust with the numbers of male and female composition in per class. The characteristic of the research was analytical descriptive with survey technique. The result of t test statistic measurement was that index of clinical crown tower jaw canine of mate was 1.50 and female was 1.21, by using reliance 95%. The inference of the research showed that the index of clinical crown lower jaw canine of male was significantly bigger than female's. The result of the research can be used as auxiliary data from the techniques to process gender identification in odontology forensic.


2021 ◽  
Vol 5 (1) ◽  
pp. 44-50
Author(s):  
Frismarwati Wahyuni Lawadjo ◽  
Munirah Tuli ◽  
Nuralim Pasisingi

The study aims to figure out growth pattern and condition factor of the flying fish (Decapterus russelli) landed at the Fish Landing Base Tenda, Hulonthalangi District, Gorontalo City. Sampling of 360 layang fish was carried out randomly based on a simple random sampling method for three months. Determination of fish sex was conducted visually by dissecting samples and observing the gonads. The study showed that the layang fish (D. russelli) landed in PPI Tenda had a positive allometric growth pattern with condition factor values ranging from 1.005 to 1.014 and 1.002 to 1.620 for male and female, respectively


Jurnal MIPA ◽  
2014 ◽  
Vol 3 (2) ◽  
pp. 74 ◽  
Author(s):  
Yudi Candra ◽  
Marnix Langoy ◽  
Roni Koneri ◽  
Marina F. O. Singkoh

Serangga air merupakan kelompok Arthropoda yang dapat dijumpai hampir pada jenis perairan misalnya pada habitat lentik atau lotik. Seranggan air dalam suatu ekosistem berperan penting dalam rantai makanan selain itu juga serangga air dapat dijadikan sebagai bioindikator terhadap penentuan kualitas suatu perairan. Penelitian ini bertujuan untuk menganalisis kelimpahan serangga air yang terdapat di Sungai Toraut. Lokai penelitian terletak pada Sub DAS dari DAS Dumoga Kabupaten Bolaang Mongondow, Sulawesi Utara. Sungai ini memiliki luas sekitar 249 km2 dan hulunya terletak di Taman Nasional Bogani Nani Wartabone (TNBNW). Penelitian ini menggunakan metode Purposive Random Sampling dengan menggunakan alat surber sampler. Total individu yang didapatkan dari 3 stasiun sebanyak 1497 individu dengan jumlah famili sebanyak 24 yang terdiri dari 27 spesies. Spesies serangga air yang paling banyak ditemukan pada stasiun satu, sedangkan yang sedikit pada stasiun 3. Kelimpahan spesies yang paling banyak ditemukan adalah Hydropsyche sp.Arthropods is a group of aquatic insects that can be found in almost all types of aquatic habitats for example lentic or lotic habitat. In the field of ecology, aquatic insects plays a role in the food chain, moreover the aquatic insects can be used as bioindicator to determine the quality of water. This study aims to analyze the abundance of aquatic insects found in the Toraut River. This study lies in the sub-watershed from the watershed of Dumoga Bolaang Mongondow, North Sulawesi. This river has an area of ​​approximately 249 km2 and its located in the headwaters of Bogani Nani Wartabone  National Park. The method used in this study is purposive random sampling method by using a sampler surber. Total individuals were obtained from 3 stations are 1497 individuals with total 24 families consisting of 27 species. The most commonly species of aquatic insects found at station 1, whereas slightly at station 3. The most commonly species of aquatic insects found is Hydropsyche sp.


2020 ◽  
Vol 9 (2) ◽  
pp. 85-98
Author(s):  
Asri Evanita Simangunsong ◽  
Muhammad Ridwansyah ◽  
Yohanes Vyn Amzar

This research was conducted on the attraction of Kerinci Seblat National Park located in Pelompek Village, Kerinci Regency, Jambi Province. This study aims to find out how visitors assess the Kerinci Seblat National Park and where visitors come. This study also aims to determine the economic value of the Kerinci Seblat National Park using the Contingent Valuation method in Kerinci Regency, Jambi Province. The total population used as a sample in this study was  99 people. The method used in this research is accidental sampling method. The analytical method used in this study is a descriptive method using the Contingency Valuation Method. From the results of this study was concluded that visitors to the general assessment of the Kerinci Seblat National Park, Kerinci Regency, Jambi Province were quite good. It can be seen from the highest visitor response of 62.92%. Originally tourists come from within the country and from abroad. The economic value of the Kerinci Seblat National Park using the Contingency Valuation Method approach in the Kerinci Regency, based on an analysis of tourist responses to the existence of natural tourism in the Kerinci Seblat National Park. The WTP willingness value is IDR 50.306.


2015 ◽  
Vol 2 (4) ◽  
Author(s):  
Miss. Sana Akhter

The aim of the present study was investigated to psychology well –being of gender Difference. The random sampling Method was used in this study. The total sample consisted 100 students. 50 of male and 50 of female of 10th standard students selected from the Jamshedpur city. Ryff‟sscales of psychological well-being scale developed by Carol Ryff (1989) was used to measure the psychological well-being. In this research psychological well-being Inventory was used for data collection Data was analyzed by„t‟ test verify the hypothesis. The result shows that„t‟ value is 5.68 that is significant at 0.01 level. So, the hypothesis is accepted. . Results showed significant gender differences in the levels on psychological well-being. It means male and female students are difference in psychological well-being.


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