RESPON PERTUMBUHAN TANAMAN SENGON (PARASERIANTHES FALCATARIA) TERHADAP PEMBERIAN AMELIORAN PADA MEDIA CAMPURAN TANAH PASCATAMBANG BATU KAPUR

Open mining activities have caused soil damage, water pollution, air pollution, and damage to vegetation. Limestone post mining is a critical area that must be rehabilitated to be productive again. This problems can be fixed by doing land reclamation activities which mandated in the Mining Law Number 4, 2009. The success of land reclamation is largely determined by the choice of plant species and the provision of appropriate soil enhancers (ameliorant). This study was aimed to analyze the growth response of sengon plants on giving ameliorant in mixed limestone post mining soil. This study was designed in completely randomized design for 7 treatments and 3 replications used combination of ameliorant: P0 (without ameliorant); P1 (AH 4 kg ha-1); P2 (BFA 350 kg ha-1); P3 (FMA 500 spores plant-1); P4 (the combination of AH and FMA); P5 (the combination of BFA and FMA); and P6 (the combination of AH, BFA, and FMA). Data were processed by analysis of variance at the 0,05 significance level followed by the Least Significant Difference test. The results showed that the best growth response of sengon on giving ameliorant in mixed limestone post mining soil was P1 treatment (humic acid material) which significantly increased root length, root volume, root fresh weight, shoot fresh weight, root dry weight, and shoot dry weight in sengon plants. The addition of ameliorant can be recommended to improve the quality of revegetation plants

KARAKTERISTIK PENGELOLAAN HUTAN RAKYAT DALAM PERSPEKTIF SISTEM (Studi di Desa Semoyo Kabupaten Gunung Kidul)

. Community smallholder forests in various places in Indonesia have different characteristics that depend on many factors that cause the development of community smallholder forests. This study aims to determine the characteristics of community smallholder forest management, the components and the interrelationships between the components that constructed the community smallholder forest system. The study was conducted at Semoyo Village, Gunungkidul Regency. Data were collected by interviewing seventy-two respondents who were purposively chosen, then tabulated and analyzed in a descriptive qualitative manner. Diameter of tree measurements on the respondent's forest land are carried out by census. In the next stage, the construction of the community smallholder forest system is carried out in a causal loop diagram based on the management characteristics found. The results show that the community smallholder forest system is composed of the main components of cultivated land, plant resources, human resources, management activities, and the purpose of managing forests. The component of land resources and human resources determines the agroforestry planting patterns chosen. The activity components, which are planting, maintaining, and cutting, have a positive loop and form different stand structures in different agroforestry planting patterns

UJI MUTU BRIKET DARI PENCAMPURAN JERAMI DAN SEKAM PADI DARI LIMBAH PASCA PANEN DI LAHAN GAMBUT

This study aims to conduct a study of the quality value of briquettes made from mixing straw and rice husks which include a flame test and combustion rate which is expected to be used to educate people around the forest by providing innovation and technology regarding the use of post-harvest waste. The results showed that the value of the quality of briquettes made from variations in the mixing of straw and rice husks including the flame test of the combustion rate obtained results, for treatment A (100% straw) of 0.68 gr/minute, treatment B (100% husk) of 0 ,57 gr/minute, treatment C (Husk 75% + Straw 25%) was 0.40 gr/minute, treatment D (Husk 25% + Straw 75%) was 0.46 r/minute and treatment E (Husk 50% + Straw 50%) of 0.43 gr/minute. The value of the flame to boiling time for treatment A = 38.62 minutes, treatment B = 31.05, treatment C = 23.22 minutes, treatment D = 36.05 and treatment E = 27.95 minutes. Density values of all treatments, and the water content for treatment B and treatment C can meet SII. While other parameters: ash content, volatile matter, bound carbon and calorific value still cannot meet the standards, so it is recommended to carry out further research with other variations of treatment, in order to obtain briquettes with quality that can meet the standards.

PERSEPSI MASYARAKAT DESA HUTAN LAHAN BASAH TERHADAP PERUBAHAN FUNGSI CAGAR ALAM MENJADI TAMAN WISATA ALAM

This research aims to analyze the public perceptions to the function change the nature preserve of Pulau Burung becomes the nature tourist park in the Pulau Burung Forest Village. The analysis used in this research is by using a Likert Scale analysis. The research location is housed in the Pulau Burung Village of District Tanah Bumbu. This study uses primary data obtained directly through a questionnaire to the villagers of the District Pulau Burung. Secondary data obtained through the government in the village. The sampling using simple random sampling method, where all members have the same population was selected as a representative sample of the population. To determine the public perception then used the likert scale analysis. The results showed that a high perception of the function change of nature preserve become nature tourist park and it’s management in the Forest Village District of Pulau Burung, seen from three indicators of responses/opinions, knowledge, and attitudes

STRATEGI ADAPTASI MASYARAKAT DESA HUTAN RAWA GAMBUT PASCA KEBAKARAN HUTAN DAN LAHAN DI KALIMANTAN SELATAN

The fire of forest and land especially in forest swamp forest have cause changes in the environment biophysical significant the impact on the occurrence of changes in the environment social. Changes in the environment biophysical and environmental social as the impact of the change over to the area of forest swamp peat has been encouraging people to do the adaptation so that they still exist as individuals and as a community to sustain life ( existence ) and improved its well-being life ( welfare ). Based on the background behind it then needs to do research. From the results of the interim research, it was found that there were various adaptation patterns of the community in adapting to peat swamp forest after fires, including adaptation of land use and adaptation of job diversification outside of work based on forest and peat swamp land use.

PEMETAAN BIOMASSA TEGAKAN HUTAN HUJAN TROPIS DI BUKIT MANDIANGIN MENGGUNAKAN CITRA SENTINEL-2 MSI

The preservation of standing biomass is one of the most vital elements for environmental sustainability and the sustainability of the forest itself. One of the actions that can be taken in an effort to maintain the sustainability of forest stand biomass is to map the distribution of biomass, and monitor changes or dynamics of stand biomass from time to time in a sustainable manner. This study aims to build a model based on remote sensing imagery to estimate the total biomass of tropical rainforest stands in Mandiangin Hill, South Kalimantan. The models developed in this study are based on vegetation indices extracted from Sentinel-2 MSI Imagery. A total of ten vegetation indices were tested in this study. For the construction process and validation of stand biomass estimation models, biomass information was measured directly in the field using a number of measuring plots. Stand biomass estimation models were made by correlating stand biomass information from the field with vegetation indices from Sentinel-2 MSI Imagery. The results showed that the most accurate model for estimating the biomass of tropical rainforest stands was 9.5806.exp (0.1454.PSSRa). Where PSSRa is Pigment Specific Simple Ratio. This model has a correlation coefficient (R2) of 0.876, a Mean Absolute Percentage Error (MAPE) of 16.8%, and a Root Mean Square Error (RMSE) of 32.6. The estimation results show that the total biomass of the Bukit Mandiangin tropical rainforest stands is between 11.7 to 998.5 Mg/ha, with an average biomass of 135.8 Mg/ha. Furthermore, the estimation of stand biomass in this study is limited to woody vegetation with a DBH of 10 cm and above. The PSSRa model with various improvements can be used to accurately estimate stand biomass

HUBUNGAN SIKAP, NORMA SUBYEKTIF DAN PERSEPSI KENDALI PERILAKU TERHADAP NIAT KTH DALAM BUDIDAYA TANAMAN ENERGI DI YOGYAKARTA

Energy policy in the world has changed due to the climate crisis. As a result, the need for renewable energy supply is increasing. Trees in the forestry sector are a reliable source of biomass for renewable energy production. Community forests could play an important role in supplying biomass-based renewable energy production. The study aims to understand the attitude, subjective norms, and perceived behavioural control on Farmers Forest Group's intention in cultivating trees for energy in Yogyakarta Province. The Theory of Planned Behaviour approach was used to analyse the correlation between Attitudes, Subjective Norms, and Perceived Behavioural Control on Forest Farmers Group Intention in cultivating trees for renewable energy. A survey using an online questionnaire was conducted on Forest Farmers Groups in four districts in DI Yogyakarta; Sleman, Kulonprogo, Bantul, and Gunungkidul. The survey results were analysed using non-parametric statistics.The results showed a significant positive correlation between Attitudes, Subjective Norms, and Perceived Behavioural Control on the Forest Farmers Group's Intention to cultivate trees for renewable energy. The study provides policymakers and privates with insight into working with the farmers when they are about to implement biomass-based renewable energy programs

POTENSI SUMBER PANGAN LOKAL DI KAWASAN KHDTK MUNGKU BARU

The current pandemic of the Corona-19 virus not only affects social activities but also affects the food sector. Strong food security in the long term can be realized through a diversification program based on local wisdom by utilizing local plants. This study aims to determine the potential of local food sources that can be used as an alternative to food consumption in the regions and reduce dependence on food sources from outside the region in realizing food security during and after the Covid-19 pandemic (study on communities in the Mungku Baru Educational Forest area, Muhammadiyah University. Palangkaraya). The research was conducted in the educational forest area or Forest Area with Special Purpose (KHDTK), Mungku Baru Village, Rakumpit District, Palangka Raya City, Central Kalimantan Province. The research method is descriptive qualitative from the results of interviews. Data analysis using tabulation matrix. There are 33species of local plants used by the community. Utilization of these plants in the form of fruit, seed, peel of fruit, leaves, rubers, and young shoots by eating or cooking them. Cultivation has not been carried out, the community takes directly part of the plant to be consumed. Habitus of these plants in the form of trees, shrubs, lianas, grasses, shrubs and herbs. Existing local food sources can be used as an alternative for food consumption in the regions and reduce dependence on food sources from outside the region and can realize food security during and after the Covid-19 pandemic

KARAKTERISTIK DAN UJI POT ORGANIK BERBAHAN DASAR LIMBAH KULIT GALAM (Melaleuca cajuputi) DAN ENCENG GONDOK (Eichornia crassipes) SEBAGAI PENGGANTI POLYBAG

The forestry and plantation sectors till now, the mass supply of seeds still using polybags made from plastic. The purpose of the study was to examine the physical characteristics and test the organic pots based on waste from galam skin and water hyacinth as well as to find out the best basic ingredients for making organic pots. The research method used was Completely Randomized Design (CRD) with 5 treatments and 3 replications. The results of organic pot testing for water content ranged from 4.2133 – 6.033%, all treatments met the SNI standard 03-2105-2006 (<14%). The range of water absorption values is 97.9981 – 176.2218% and the SNI 03-2105-2006 standard does not require water absorption values. Density values ranged from 0.3584 – 0.8767 gr/cm3, A, C, D, E treatments were included in the SNI 03-2105-2006 standard. The best treatment of organic pot water content was in treatment A (100% galam peel waste), water absorption was found in treatment E (100% water hyacinth) and the best density was found in treatment E (100% water hyacinth. Results of organoleptic test of organic pots Based on the preference for color and texture, the highest was found in treatment A (100% galam bark waste) with a very hard texture and blackish color

BUSSINES MODEL CANVAS SEBAGAI ALTERNATIF STRATEGI BISNIS KERAJINAN SEDOTAN PURUN DI DESA TUMBANG NUSA, KECAMATAN JABIREN KABUPATEN PULANG PISAU

This study aims to analyze the business model of the purun straw craft business in Tumbang Nusa Village and determine the strategy for developing the purun straw craft business model in Tumbang Nusa Village with the Bussines Model Canvas (BMC) approach. Purun straws in Tumbang Nusa village. This study uses descriptive research methods to collect detailed actual information that describes existing symptoms, identifies problems or examines prevailing conditions and practices. The results of the research on the canvas model business mapping that have been carried out, it turns out that the customer segment of the purun straw craftsmen has been diversified into Bussines to Bussines and Bussines to Consumer customers with marketing reach in the cities of Palangkaraya, Jakarta and Bali. The revenue stream element from straw craftsmen is only in the form of selling straws. Furthermore, the main resources used are production equipment, human resources, capital, transportation and communication tools with key activities in the form of production and marketing activities. Meanwhile, the main partnership that keeps the business running is the Liaison and the government. The last element in the form of a cost structure contains fixed costs and variable costs. After getting information from the business model environment and SWOT analysis, the changes to the existing canvas business model are obtained. In order for the production process to run more efficiently, the use of appropriate technology is added through production mechanization, while for the main activity promotional activities are added. Researchers suggest craftsmen can implement improvement strategies on the Business Model Canvas elements that focus on five elements, namely, Customer segments, Channels, Customer relationships, Key activities and Key partners so that operational activities are expected to be more effective