Forest plays an important role on reducing the impact of global warming as carbon sink. Forest has an ability to absorb carbon on large scale and store it as biomass. This research was aim to determine the potential of aboveground biomass and carbon stock in pine-mahogany mixture stands in Specific Purpose Forest Area (SPFA) of Gunung Bromo. The systematic sampling with random start was used to determine the plot, and the distance between plots were 100 m. In total, there were 35 square plots, 20 × 20 m in size, that had been set up under the pine-mahogany mixture stands. This research was conducted by using non-destructive sampling method by measuring the tree volume. The pine-mahogany stands dominated by the trees with diameter class 20-30 cm. The tree density and stand volume were 431 trees/ha and 229.4 m3/ha. Estimated aboveground biomass, carbon stock, and CO2 equivalent in pine stands were 136.53 ton/ha, 64.17 ton C/ha, and 235.29 ton/ha, while for mahogany stands were 33.01 ton/ha, 15.56 ton C/ha, and 57.04 ton/ha, respectively. Thus, the total biomass and carbon stock in pine-mahogany mixture stands were 169.63 ton/ha and 79.73 ton C/ha. Meanwhile, total CO2-equivalent was 292.23 ton/ha.
Forest vegetation analysis and structure is necessary to understand in order to set up the basis of forest governance and management of the forest plan. This study aims to determine the potential, structure, species composition, and inventory of plant species of the forest stand in the educational forest, namely KHDTK Gunung Bromo. Analysis of vegetation methods on sampling plots 20 × 20 m was made in the forest area to collect trees data. The systematic sampling with the random start was used, with the plot distance 100 m. In total, there are 100 plots were measured. The results showed that total volume and tree densities were 261.66 m3/ha and 291 trees/ha. The stand was dominated by the trees with a diameter range of 20 – 30 cm. Species composition is dominated by Pinus merkusii with Species Importance Value (SIV), average volume, and density were 163.23%, 156.67 m3/ha, and 202 trees/ha, respectively. However, the sapling stage was dominated by Dalbergia latifolia that showed by SIV 119%, indicating that D. latifolia was able to regenerate itself until the sampling stage. In addition, in the seedling stage, Swietenia macrophylla was the dominant species with density 400 seedling/ha, indicating that seed was adaptive and easily spread.
K.G.P.A.A. Mangkunagoro I Forest Park is the one and only forest park in Central Java. As area of protection, life support system, and biodiversity preservation, K.G.P.A.A. Mangkunagoro I Forest Park plays an important role for life, especially for people around the forest area. To ensure this function, the sustainability of forest functions is determined by the presence of vegetation in the forest area. The purpose of this study was to determine the diversity of species, biomass and carbon stock of bamboo in K.G.P.A.A. Mangkunagoro I Forest Park. The diversity of bamboo species was observed by exploration method with an inventory. Then, based on the inventory data obtained, one species of bamboo was selected based on its number of clumps to determine the biomass and carbon storage. In the present study, there were 20 species bamboo at K.G.P.A.A. Mangkunagoro I Forest Park namely Bambusa balcoa, B. balcoa var. Capensis, B. bambos, B. blumeana, B. multiplex-green hedge, B. multiplex-alphanse karr, B. oldhami, B. tuldoides, B. vulgaris vulgaris, B. vulgaris vitata, B. vulgaris wamin budha, Dendrocalmus asper, D. asper thai, D. asper black, D. hamiltoni, Guadua amplexifolia, G. agustifolia, Oxytenanthera abysinica, Phyllostacys aurea, dan P. nigra. Furthermore, D. asper (petung bamboo) was the most dominated bamboo species. The number of D. asper were 758 clumps/ha and 3,213 reeds/ha. The average D. asper biomass was 6.02 kg/reed. Thus, the estimated biomass per ha was 19.5 tonnes/ha. In addition, D. asper has the ability to store carbon of 9.1 tonnes/ha.
Abstrak: Saat ini sandang bukan hanya sebagai kebutuhan primer, tetapi juga sudah menjadi bagian dari gaya hidup. Ecoprint merupakan salah satu metode untuk mewarnai atau membuat motif pada kain yang saat ini digemari masyarakat. Produk ecoprint dapat menjadi salah satu sumber pendapatan yang ramah lingkungan dan bernilai ekonomi serta layak dikembangkan. Mitra kegiatan ini yaitu KWT Paguyuban Petani Al-Barokah, dengan jumlah peserta pelatihan 28 orang. Tujuan dari pelatihan ecoprint adalah para anggota akan berperan aktif dalam menjaga lingkungan dan bermuara pada peningkatan kreativitas dan pendapatan. Pelatihan dilakukan di Sekretariat Paguyuban Petani Al-Barokah Desa Ketapang, Kecamatan Susukan, Kabupaten Semarang. Metode pelatihan yang digunakan adalah ceramah dan praktik. Sumber bahan baku ecoprint diperoleh dari lingkungan sekitar berupa daun dan bunga dari beragam tumbuhan yang dapat mengeluarkan pigmen warna/mengandung pewarna alam seperti jati, jarak, dll. Peserta tampak antusias dengan kegiatan ini dan merasa senang dan tertarik untuk memperdalam keterampilan ecoprint di masa mendatang. Peserta memperoleh pengetahuan dasar tentang ecoprint dan dapat menghasilkan produk kain dengan motif khas ecoprint.Abstract: Nowadays, clothing is not only a primary need, but has also become part of the lifestyle. Ecoprint is a method for coloring or making motifs on fabrics that are currently popular in public. Ecoprint process was environmentally friendly and the product has a high value, thus it has potency to be income source. Farmer’s women’s group Al-Barokah Farmers Association was the partner in this community services, in total there were 28 women who involve in this activity. The goal of the ecoprint training was that the members shows an active role in protecting the environment and lead to increased their creativity and income. The training was conducted at Secretariat of the Al-Barokah Farmers Association in Ketapang Village, Susukan District, Semarang Regency. The training method that used was lecture and practice. The source of ecoprint raw materials was obtained from the surrounding environment in the form of leaves and flowers of perennial plants which can secrete color pigments/contain natural dyes such as teak, jatropha, etc. Participants seemed enthusiastic about this activity and interested in deepening their ecoprint skills near future. Participants acquired ecoprint basic knowledge and able to produce ecoprint fabric.
Agroforestry can be developed for climate change adaptation and mitigation. Farmers in Jepara Regency have long been developing sugar palm agroforestry for starch. Increasing the use of sugar palm and the low knowledge of farmers about the potential of sugar palm plants are a threat to the existence of sugar palm agroforestry. This study aims to inventory the potential distribution of sugar palm with the support of remote sensing and field surveys in Pakis Aji, Bangsri, and Kembang sub-districts which was carried out in August-December 2020. The interpretation results used Landsat 8 imagery and Google Earth images in 1161 sugar palm objects with the largest number in Bangsri District. Remote sensing accuracy testing with the Omission-Commission method obtained a value of 90.8%, which means the accuracy value is very high. The correlation test between the value of vegetation density (NDVI) and the survey results obtained a value of R2 = 0.575 with a significance value of 0.00 <0.05. The overall potential of palm plantations is predicted to be 5740 m3 with an area for the development of sugar palm agroforestry of 10,008.9 ha.
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