Jurnal Penelitian Kehutanan Wallacea最新文献

Nickel acquisition affected by root density of mono- and mixed-cropping peanut and choy sum 单作和混作花生、白菜根密度对镍获取的影响

Jurnal Penelitian Kehutanan Wallacea Pub Date : 2023-05-31 DOI: 10.24259/jpkwallacea.v12i1.26615

A. Tjoa, L. Christi, N. Edy, Z. Basri, H. Barus

{"title":"Nickel acquisition affected by root density of mono- and mixed-cropping peanut and choy sum","authors":"A. Tjoa, L. Christi, N. Edy, Z. Basri, H. Barus","doi":"10.24259/jpkwallacea.v12i1.26615","DOIUrl":"https://doi.org/10.24259/jpkwallacea.v12i1.26615","url":null,"abstract":"Nickel (Ni) and associated minerals (Cr and Mn) are naturally occurring substances in ultramafic laterites soil. It may be found in our vegetables and grains when agriculture is grown in ultramafic laterites. This study aimed to assess the contamination of Ni in edible crops affected by soil volume in mono- and mixed cropping on limonitic laterite soil. The investigation was conducted on Peanut (Arachis hypogaea L.) and Choy Sum (Brassica rapa var. parachinensis) in three different pots sizes-representing soil volume to support root growth, which was filled with 0.5 kg (small), 1.0 kg (medium), and 1.5 kg (big) of limonitic laterite soil, respectively. The limonitic soil has a 7.884 mg kg-1 Ni concentration. The experiment shows that Ni concentration in peanut and Choy Sum shoots of mono-cropping in small, medium, and big pots achieve 20, 90, 120 mg kg-1 and 51, 67, and 95 mg kg-1, respectively. Meanwhile, in mixed cropping, Ni concentration in small, medium, and big pots of peanut and Choy Sum shoots are lower only by 33, 50, and 51 mg kg-1 and 15, 52, and 63 mg kg-1, respectively. Contamination of Ni in Peanut and Choy Sum shoots increases with the increasing soil volume, and mixed cropping is a potential strategy to reduce the acquisition of Ni.","PeriodicalId":30813,"journal":{"name":"Jurnal Penelitian Kehutanan Wallacea","volume":"228 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41258797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The spatial patterns of deforestation in the Ko'mara forest area Ko’mara林区森林砍伐的空间格局

Jurnal Penelitian Kehutanan Wallacea Pub Date : 2023-05-31 DOI: 10.24259/jpkwallacea.v12i1.26399

Leny Rachmawati, S. Paembonan, S. Rijal, M. Nursaputra, A. S. Soma, S. Millang, A. Mujetahid

{"title":"The spatial patterns of deforestation in the Ko'mara forest area","authors":"Leny Rachmawati, S. Paembonan, S. Rijal, M. Nursaputra, A. S. Soma, S. Millang, A. Mujetahid","doi":"10.24259/jpkwallacea.v12i1.26399","DOIUrl":"https://doi.org/10.24259/jpkwallacea.v12i1.26399","url":null,"abstract":"Land-use changes result from changes in the human population, their activities, and social and environmental activities, which occur in a complex and dynamic manner. The change of forested areas to non-forested areas, also known as deforestation, is a land-use change. Deforestation influences land cover by creating a specific distribution pattern (fragmentation). Almost the entire forest has been fragmented into smaller areas, but the pattern of each of these forest areas is uncertain. As a consequence, it would be more challenging to control potential deforestation. Using the spatial metrics of Clumpiness index, Contiguity index, and Patch density, deforestation in one of the forest areas, namely the Ko'mara forest area, was carried out. This research was analyzed using GIS and Fragstat software in raster data format. The analysis results show that the spatial pattern of deforestation in this area has a clumped distribution, with a high level of patch contiguity and a low to medium level of fragmentation. This pattern represents the form of deforestation in the Ko'mara forest area in 2005-2010 and 2010-2015 was classified as Low Deforestation with a deforestation rate of <1%, but was classified as Moderate Deforestation in 2015-2019 because the value obtained was 1.1%.","PeriodicalId":30813,"journal":{"name":"Jurnal Penelitian Kehutanan Wallacea","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45713118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of land slope, tree density and basal area on fire intensity in pinus merkusii plantation forest 地表坡度、乔木密度和基带面积对针叶松人工林火灾强度的影响

Jurnal Penelitian Kehutanan Wallacea Pub Date : 2023-05-31 DOI: 10.24259/jpkwallacea.v12i1.26707

M. Ihsan, P. S. Putra, N. Nasri, Andi Siady Hamzah, R. Maulany, P. O. Ngakan

{"title":"Impact of land slope, tree density and basal area on fire intensity in pinus merkusii plantation forest","authors":"M. Ihsan, P. S. Putra, N. Nasri, Andi Siady Hamzah, R. Maulany, P. O. Ngakan","doi":"10.24259/jpkwallacea.v12i1.26707","DOIUrl":"https://doi.org/10.24259/jpkwallacea.v12i1.26707","url":null,"abstract":"Forest fires are not solely determined by the quantity and quality of plant debris as fuel, but also influenced by some extrinsic factors. This study aims to examine the effect of some factors (slopes, tree density, and tree basal area) on the intensity of forest fires. The study was conducted in a 1 ha (100m x 100m) plot in the Pinus merkusii plantation 10 months after the fire. The plot was divided into 10 m x 10 m subplots, therefore there were 100 subplots. Each tree over 5 cm in diameter found in the plot was numbered consecutively, recorded its species name, measured its diameter, and determined whether it was alive or dead. The slope level in each subplot was measured. Multiple regression analysis was used to detect the influence of slope level, tree density, and basal area on the number of dead trees in each subplot. Results show that slopes, tree density, and basal area influenced proportionally the intensity of forest fires (R2 = 0,507; p<0.05). However, when the partial analysis was applied to detect the influence of each class factor, not all of the classes were found significant. These results reveal that there are several other factors not measured in this study that also influence fire intensity, which we suspect are tapping holes and tree diameter.","PeriodicalId":30813,"journal":{"name":"Jurnal Penelitian Kehutanan Wallacea","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48851315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The value of the Wallacea Region: Considerations behind the changing scope of JPK Wallacea Wallacea地区的价值:JPK Wallacea范围变化背后的考虑

Jurnal Penelitian Kehutanan Wallacea Pub Date : 2023-05-31 DOI: 10.24259/jpkwallacea.v12i1.26952

P. O. Ngakan, N. Nasri, P. S. Putra

引用次数: 0

Spatial diversity patterns of understory shrub community in Srengseng urban forest, Jakarta 雅加达胜城城市林下灌木群落的空间多样性格局

Jurnal Penelitian Kehutanan Wallacea Pub Date : 2023-05-31 DOI: 10.24259/jpkwallacea.v12i1.26039

Gabriella Ria Kirana, Erwin Nurdin, W. Wardhana, A. Basukriadi, Andriwibowo Andriwibowo

{"title":"Spatial diversity patterns of understory shrub community in Srengseng urban forest, Jakarta","authors":"Gabriella Ria Kirana, Erwin Nurdin, W. Wardhana, A. Basukriadi, Andriwibowo Andriwibowo","doi":"10.24259/jpkwallacea.v12i1.26039","DOIUrl":"https://doi.org/10.24259/jpkwallacea.v12i1.26039","url":null,"abstract":"Urban forests are one of the natural ecosystems in urban environments. One of the most important components of the urban forest ecosystem is the understory shrubs. Therefore, this study aims to estimate the diversity of understory shrubs in the Srengseng Urban Forest in Jakarta City. The biodiversity of understory shrubs is calculated using the Shannon-Wiener diversity index (H') and mapped using the Geographic Information System (GIS). In this study, 24 plots measuring 2 m by 2 m each were placed to survey the understory shrubs. In total, there were 20 species of shrubs identified, which belong to 12 families with average values of H' is 0.671. The results show that almost 62.78% of the total Srengseng Urban Forest area has a H' diversity range of 1.001–1.500. In comparison, 8.62% of total urban forest area has an H' diversity range of 0.501-1.000. The area of urban forest with the lowest diversity in the H' diversity range of 0.000 to 0.500 reaches 28.58%. The eastern parts of the urban forest have the highest H' in comparison to the other parts of the forest. This study contributes to the conservation and forestry management of forest at an urban scale by identifying parts of the urban forest that should be conserved in the Srengseng. To conclude, the eastern parts of Srengseng Urban Forest sizing 64,765 m2 should be prioritized for understory shrub conservation.","PeriodicalId":30813,"journal":{"name":"Jurnal Penelitian Kehutanan Wallacea","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49081564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of carrying capacity Sangalaki Island Natural Tourism Park, Berau Regency 贝劳县桑加拉基岛自然旅游公园承载能力评估

Jurnal Penelitian Kehutanan Wallacea Pub Date : 2022-11-30 DOI: 10.18330/jwallacea.2022.vol11iss2pp125-137

Joko Mijiarto, E. Rachmawati

{"title":"Assessment of carrying capacity Sangalaki Island Natural Tourism Park, Berau Regency","authors":"Joko Mijiarto, E. Rachmawati","doi":"10.18330/jwallacea.2022.vol11iss2pp125-137","DOIUrl":"https://doi.org/10.18330/jwallacea.2022.vol11iss2pp125-137","url":null,"abstract":"Sangalaki Island Nature Tourism Park (NTP) is one of the tourist destinations in Derawan. As a conservation area, tourism development in Sangalaki Island NTP must pay attention to the carrying capacity of the area. The purpose of this research is to calculate the carrying capacity in the NTP area of Sangalaki Island. The research was conducted in October 2021 through literature studies, field observations, and interviews. The calculation of the carrying capacity is carried out with the concept of Physical Carrying Capacity (PCC). The PCC of the area in Sangalaki Island NTP is 259 people/day with details of beach tourism 77 people, snorkeling 69 people, diving 44 people, tracking 13 people, and animal watching 57 people. The PCC data can be the basis for the manager to determine the maximum number of visits that can carry out tourism activities at Sangalaki Island NTP. Carrying capacity is intended to reduce the impact of tourism development on the ecological aspects of the area. In addition, the application of environmental carrying capacity is a manager's step to apply the concept of sustainable tourism at Sangalaki Island.","PeriodicalId":30813,"journal":{"name":"Jurnal Penelitian Kehutanan Wallacea","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42880657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Implementation of forest extension methods in improving the knowledge and skills of forest farmers in Maros District (Case study on forestry extension methods in Tompobulu District, Maros Regency) 实施森林推广方法以提高Maros区森林农民的知识和技能（Maros Regency Tompobulu区森林推广方法案例研究）

Jurnal Penelitian Kehutanan Wallacea Pub Date : 2022-11-30 DOI: 10.18330/jwallacea.2022.vol11iss2pp89-99

A. Imran, Nirawati Nirawati, Andi Khairil Andi Samsu

{"title":"Implementation of forest extension methods in improving the knowledge and skills of forest farmers in Maros District (Case study on forestry extension methods in Tompobulu District, Maros Regency)","authors":"A. Imran, Nirawati Nirawati, Andi Khairil Andi Samsu","doi":"10.18330/jwallacea.2022.vol11iss2pp89-99","DOIUrl":"https://doi.org/10.18330/jwallacea.2022.vol11iss2pp89-99","url":null,"abstract":"The forestry extension method is a service system that helps the community, especially farmers and communities around the forest, in education, knowledge, implementation of techniques, and methods of utilizing and preserving forest resources. The study aimed to determine the forms of forestry extension methods in Tompobulu District and analyze the effect of forestry extension learning methods in increasing the knowledge and skills of forest farmers in Maros District. Data analysis was carried out to analyze forestry extension methods using qualitative descriptive analysis with a Likert scale. While the analysis used to analyze the forestry extension method in improving the knowledge and skills of forest farmers in Tompubulu District is quantitative analysis with t-test. The results of the study stated that the forestry extension methods implemented were 1) direct communication method, 2) method through teaching aids messages, 3) method based on individual approach, 4) method based on group approach, 5) participatory method, and 6) technology-based method, information, and communication (ICT). The effect of forestry extension methods that have a significant effect in increasing the knowledge and skills of forest farmers are direct communication methods, methods based on individual approaches, and participatory methods. At the same time, the methods that do not significantly affect the increase in knowledge and skills of forest farmers are the method through the message of teaching aids, the method based on the group approach, and the method based on technology, information, and communication (ICT).","PeriodicalId":30813,"journal":{"name":"Jurnal Penelitian Kehutanan Wallacea","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49362678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The use of various composition media and additional compost to stimulate the growth of jabon putih (Neolamarckia cadamba (Roxb.) Bosser) seedlings 使用各种复合培养基和额外的堆肥来刺激jabon putih（Neolamarckia cadamba（Roxb.）Bosser）幼苗的生长

Jurnal Penelitian Kehutanan Wallacea Pub Date : 2022-11-30 DOI: 10.18330/jwallacea.2022.vol11iss2pp101-109

Suhartati Suhartati Wello, M. K. Allo

{"title":"The use of various composition media and additional compost to stimulate the growth of jabon putih (Neolamarckia cadamba (Roxb.) Bosser) seedlings","authors":"Suhartati Suhartati Wello, M. K. Allo","doi":"10.18330/jwallacea.2022.vol11iss2pp101-109","DOIUrl":"https://doi.org/10.18330/jwallacea.2022.vol11iss2pp101-109","url":null,"abstract":"Jabon putih (Neolamarckia cadamba (Roxb.) Bosser) is a species of forest plant that is widely grown for pulp raw material of paper and carpentry wood, in plantation forests, village forests, and community lands, so it is necessary to prepare good quality seedlings. This research was conducted for the propagation of jabon putih seedlings by stimulating their growth using various media compositions and compost doses. This research was carried out in the nursery area of the Environmental and Forestry Research and Development Center of Makassar for three months, from October 2019 to January 2020. This study used a completely randomized design with a factorial pattern with four replications. The treatment used various media compositions consisting of soil, sand, husks as the first factor, and compost dose as the second factor. The variables observed were the growth of seedlings including height, stem diameter, and number of leaves. The interaction of media composition and compost dose had a significant effect on the growth of jabon putih seedlings in the nursery. The best media composition was a mixture of soil, husks, and sand with a ratio of 2:1:1 and the provision of 40 g of compost per polybag, which could increase the growth of seedling height by 68.62%.","PeriodicalId":30813,"journal":{"name":"Jurnal Penelitian Kehutanan Wallacea","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49336862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Composition, domination, and similarity level of stand among farmers’ cultivated blocks at Wan Abdul Rachman Grand Forest Park Wan Abdul Rachman大森林公园农民种植地块的组成、支配和相似水平

Jurnal Penelitian Kehutanan Wallacea Pub Date : 2022-11-30 DOI: 10.18330/jwallacea.2022.vol11iss2pp139-151

I. Indriyanto

{"title":"Composition, domination, and similarity level of stand among farmers’ cultivated blocks at Wan Abdul Rachman Grand Forest Park","authors":"I. Indriyanto","doi":"10.18330/jwallacea.2022.vol11iss2pp139-151","DOIUrl":"https://doi.org/10.18330/jwallacea.2022.vol11iss2pp139-151","url":null,"abstract":"The tree species preferred by forest farmers are not always the same, so that in each farmers cultivated block it is possible to form forest stands with a certain composition. The research aimed to analyze the composition of tree species, dominant tree species, and similarity level of species composition among the farmer’s cultivated block. The research was conducted from August until December 2020. Data collection was carried out with a vegetation survey using nested rectangular plots with a sampling intensity of 1%. The data collected includes tree species, tree height, basal area, and individual number of each species. Data were analyzed by calculating density, frequency, important value index (IVI), similarity index (IS), and dissimilarity index (ID). The results showed that the composition of forest garden stands in the farmer’s cultivated block was categorized as heterogeneous (mixed stand) with the number of trees species varying from 12 to 18 species. The total number of tree species were 43, consisting of 17 jungle wood species, 18 jungle MPTS species, and 8 agricultural MPTS species. The forest garden stands were dominated by 4 tree species, namely Gnetum gnemon, Durio zibethinus, Aleurites moluccana, and Myristica fragrans, each of which had an IVI>19.91%. The similarity level of forest garden stands composition was very low with an average IS of 0.27 and an average ID of 0.73. Thus, it can be stated that the forest garden stands among the farmer’s cultivated blocks had different compositions with a difference of 73%. The heterogeneity of forest garden stands needs to be maintained and even developed so that the ecological function of the forest is maintained and the non-timber produced is sufficiently diverse to meet the needs of communities living around the forest.","PeriodicalId":30813,"journal":{"name":"Jurnal Penelitian Kehutanan Wallacea","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46386628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contribution of coffee agroforestry to the income of farmers in Tulungrejo Village, Ngantang District, Malang Regency 咖啡农林业对玛琅县南唐区Tulungrejo村农民收入的贡献

Jurnal Penelitian Kehutanan Wallacea Pub Date : 2022-11-30 DOI: 10.18330/jwallacea.2022.vol11iss2pp79-88

Joko Triwanto, Fatan Ghani Rizaldy Arrofi, E. Rahayu

{"title":"Contribution of coffee agroforestry to the income of farmers in Tulungrejo Village, Ngantang District, Malang Regency","authors":"Joko Triwanto, Fatan Ghani Rizaldy Arrofi, E. Rahayu","doi":"10.18330/jwallacea.2022.vol11iss2pp79-88","DOIUrl":"https://doi.org/10.18330/jwallacea.2022.vol11iss2pp79-88","url":null,"abstract":"The potential for coffee development in Indonesia has great opportunities, supported by high market demand. The purpose of the study was to determine the characteristics of coffee agroforestry and its contribution to the income of farmers in Tulungrejo Village, Ngantang District, Malang Regency. Types of data consist of primary data and secondary data. Primary data were obtained from interviews with 90 respondents of coffee agroforestry farmers who are members of the Forest Farmers Village Partnership Institute (LKDPH). Data processing used quantitative descriptive analysis by calculating production costs, revenues, and income, as well as the contribution of coffee agroforestry to the total income of farmers. The results showed that farmers applied agrisilviculture with a simple system, namely planting robusta coffee (Coffea canephora) under forest tree stands. The value of the R/C ratio is 2.98 where the value is >1, meaning that coffee agroforestry farming provides benefits. The application of coffee agroforestry contributes significantly to the total income of farmers, which is 58.47%. The development of coffee agroforestry is directed at increasing productivity and quality without damaging the shade plants. The policy implications of coffee agroforestry development must involve all relevant parties including the government, entrepreneurs, farmer groups, banks, and cooperatives.","PeriodicalId":30813,"journal":{"name":"Jurnal Penelitian Kehutanan Wallacea","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48306944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0